Seven seedlings of Rhododendron 'Horizon Monarch' X 'Doreen Gale', which were raised by Marc Colombel, have been determined to be a tetraploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the tetraploid seedling of 'Horizon Monarch' (4X) X 'Doreen Gale' (4X), a tetraploid by a tetraploid produced a tetraploid indicating that normal meiosis most likely occurred for both tetraploid parents. In other words, the tetraploid seedlings of 'Horizon Monarch' X 'Doreen Gale' having 52 chromosomes received 26 chromosomes from the tetraploid 'Horizon Monarch' and 26 chromosomes from the tetraploid 'Doreen Gale'.
Summary of Ploidy Levels
Tetraploid 'Doreen Gale',
Tetraploid 'Horizon Monarch',
Tetraploid 7 Seedlings of 'Horizon Monarch' X 'Doreen Gale'
Source Marc Colombel
John and Sally Perkins
Showing posts with label S_Colombel. Show all posts
Showing posts with label S_Colombel. Show all posts
H: Thursday, August 18, 2011
H: Wednesday, August 17, 2011
'Horizon Lakeside' X 'Doreen Gale' is a Triploid
Two seedlings of Rhododendron 'Horizon Lakeside' X 'Doreen Gale', which were raised by Marc Colombel, have been determined to be a triploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the triploid seedling of 'Horizon Lakeside' (2X) X 'Doreen Gale' (4X), a diploid by a tetraploid produced a tetraploid indicating that normal meiosis most likely occurred for both parents. In other words, the triploid seedlings of 'Horizon Lakeside' X 'Doreen Gale' having 39 chromosomes received 13 chromosomes from the diploid 'Horizon Lakeside' and 26 chromosomes from the tetraploid 'Doreen Gale'.
Summary of Ploidy Levels
Diploid 'Horizon Lakeside',
Tetraploid 'Doreen Gale',
Tetraploid 2 Seedlings of 'Horizon Lakeside' X 'Doreen Gale'
Source Marc Colombel
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the triploid seedling of 'Horizon Lakeside' (2X) X 'Doreen Gale' (4X), a diploid by a tetraploid produced a tetraploid indicating that normal meiosis most likely occurred for both parents. In other words, the triploid seedlings of 'Horizon Lakeside' X 'Doreen Gale' having 39 chromosomes received 13 chromosomes from the diploid 'Horizon Lakeside' and 26 chromosomes from the tetraploid 'Doreen Gale'.
Summary of Ploidy Levels
Diploid 'Horizon Lakeside',
Tetraploid 'Doreen Gale',
Tetraploid 2 Seedlings of 'Horizon Lakeside' X 'Doreen Gale'
Source Marc Colombel
John and Sally Perkins
H: Tuesday, August 16, 2011
'Rwain' X 'L'Engin' is a Tetraploid
Four seedlings of Rhododendron 'Rwain' X 'L'Engin', which were raised by Marc Colombel, have been determined to be a tetraploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the tetraploid seedling of 'Rwain' (3X) X 'L'Engin' (4X), a triploid by a tetraploid produced a tetraploid indicating that triploid seed parent 'Rwain' acted as a tetraploid. In other words, the tetraploid seedlings of 'Rwain' X 'L'Engin' having 52 chromosomes most likely received 26 chromosomes from the triploid 'Rwain' and 26 chromosomes from the tetraploid 'L'Engin'.
Summary of Ploidy Levels
Triploid 'Rwain',
Tetraploid 'L'Engin',
Tetraploid 4 Seedlings of 'Rwain' X 'L'Engin'
Source Marc Colombel
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the tetraploid seedling of 'Rwain' (3X) X 'L'Engin' (4X), a triploid by a tetraploid produced a tetraploid indicating that triploid seed parent 'Rwain' acted as a tetraploid. In other words, the tetraploid seedlings of 'Rwain' X 'L'Engin' having 52 chromosomes most likely received 26 chromosomes from the triploid 'Rwain' and 26 chromosomes from the tetraploid 'L'Engin'.
Summary of Ploidy Levels
Triploid 'Rwain',
Tetraploid 'L'Engin',
Tetraploid 4 Seedlings of 'Rwain' X 'L'Engin'
Source Marc Colombel
John and Sally Perkins
H: Monday, August 15, 2011
'Naselle' X 'Rwain' is a Diploid
One seedling of Rhododendron 'Naselle' X 'Rwain', which was raised by Marc Colombel, has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the diploid seedling of 'Naselle' (2X) X 'Rwain'(3X), a diploid by a triploid produced a diploid indicating that triploid pollen parent 'Rwain' acted as a diploid. In other words, the diploid seedlings of 'Naselle' X 'Rwain' having 26 chromosomes most likely received 13 chromosomes from the diploid 'Naselle' and 13 chromosomes from the triploid 'Rwain'.
Summary of Ploidy Levels
Diploid 'Hotei',
Diploid 'Naselle',
Diploid 1 Seedling of 'Naselle' X 'Rwain',
Triploid 'Rwain',
Triploid 1 Seedling of 'Hotei' x 'Rwain'
Source Marc Colombel
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the diploid seedling of 'Naselle' (2X) X 'Rwain'(3X), a diploid by a triploid produced a diploid indicating that triploid pollen parent 'Rwain' acted as a diploid. In other words, the diploid seedlings of 'Naselle' X 'Rwain' having 26 chromosomes most likely received 13 chromosomes from the diploid 'Naselle' and 13 chromosomes from the triploid 'Rwain'.
Summary of Ploidy Levels
Diploid 'Hotei',
Diploid 'Naselle',
Diploid 1 Seedling of 'Naselle' X 'Rwain',
Triploid 'Rwain',
Triploid 1 Seedling of 'Hotei' x 'Rwain'
Source Marc Colombel
John and Sally Perkins
H: Sunday, August 14, 2011
'Horizon Monarch' X 'Rwain' is a Triploid
One seedling of Rhododendron 'Horizon Monarch' X 'Rwain', which was raised by Marc Colombel, has been determined to be a triploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the triploid seedling of 'Horizon Monarch' (4X) X 'Rwain' (3X), a tetraploid by a triploid produced a triploid indicating that triploid pollen parent 'Rwain' acted as a diploid. In other words, the triploid seedlings of 'Horizon Monarch' X 'Rwain' having 52 chromosomes most likely received 26 chromosomes from the tetraploid 'Horizon Monarch' and 13 chromosomes from the triploid 'Rwain'.
Summary of Ploidy Levels
Triploid 'Rwain',
Triploid 1 Seedling of 'Horizon Monarch' X 'Rwain'
Tetraploid 'Horizon Monarch',
Tetraploid 3 Seedlings of 'Horizon Monarch' X 'Rwain'
Source Marc Colombel
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the triploid seedling of 'Horizon Monarch' (4X) X 'Rwain' (3X), a tetraploid by a triploid produced a triploid indicating that triploid pollen parent 'Rwain' acted as a diploid. In other words, the triploid seedlings of 'Horizon Monarch' X 'Rwain' having 52 chromosomes most likely received 26 chromosomes from the tetraploid 'Horizon Monarch' and 13 chromosomes from the triploid 'Rwain'.
Summary of Ploidy Levels
Triploid 'Rwain',
Triploid 1 Seedling of 'Horizon Monarch' X 'Rwain'
Tetraploid 'Horizon Monarch',
Tetraploid 3 Seedlings of 'Horizon Monarch' X 'Rwain'
Source Marc Colombel
John and Sally Perkins
H: Saturday, August 13, 2011
'Horizon Monarch' X 'Rwain' is a Tetraploid
Three seedlings of Rhododendron 'Horizon Monarch' X 'Rwain', which were raised by Marc Colombel, have been determined to be a tetraploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the tetraploid seedling of 'Horizon Monarch' (4x) X 'Rwain' (3X), a tetraploid by a triploid produced a tetraploid indicating that triploid pollen parent 'Rwain' acted as a tetraploid. In other words, the tetraploid seedlings of 'Horizon Monarch' X 'Rwain' having 52 chromosomes most likely received 26 chromosomes from the tetraploid 'Horizon Monarch' and 26 chromosomes from the triploid 'Rwain'.
Summary of Ploidy Levels
Triploid 'Rwain',
Triploid 1 Seedling of 'Horizon Monarch' X 'Rwain'
Tetraploid 'Horizon Monarch',
Tetraploid 3 Seedlings of 'Horizon Monarch' X 'Rwain'
Source Marc Colombel
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the tetraploid seedling of 'Horizon Monarch' (4x) X 'Rwain' (3X), a tetraploid by a triploid produced a tetraploid indicating that triploid pollen parent 'Rwain' acted as a tetraploid. In other words, the tetraploid seedlings of 'Horizon Monarch' X 'Rwain' having 52 chromosomes most likely received 26 chromosomes from the tetraploid 'Horizon Monarch' and 26 chromosomes from the triploid 'Rwain'.
Summary of Ploidy Levels
Triploid 'Rwain',
Triploid 1 Seedling of 'Horizon Monarch' X 'Rwain'
Tetraploid 'Horizon Monarch',
Tetraploid 3 Seedlings of 'Horizon Monarch' X 'Rwain'
Source Marc Colombel
John and Sally Perkins
H: Friday, August 12, 2011
'Hotei' x 'Rwain' is a Triploid
One seedling of Rhododendron 'Hotei' x 'Rwain', which was raised by Marc Colombel, has been determined to be a triploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the triploid seedling of 'Hotei' (2X) x 'Rwain' (3X), a diploid by a triploid produced a triploid indicating that triploid seed parent 'Rwain' acted as a tetraploid. In other words, the triploid seedlings of 'Hotei' x 'Rwain' having 39 chromosomes most likely received 13 chromosomes from the diploid 'Hotei' and 26 chromosomes from the triploid 'Rwain'.
Summary of Ploidy Levels
Diploid 'Hotei',
Diploid 'Naselle',
Diploid 1 Seedling of 'Naselle' X 'Rwain',
Triploid 'Rwain',
Triploid 1 Seedling of 'Hotei' x 'Rwain'
Source Marc Colombel
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the triploid seedling of 'Hotei' (2X) x 'Rwain' (3X), a diploid by a triploid produced a triploid indicating that triploid seed parent 'Rwain' acted as a tetraploid. In other words, the triploid seedlings of 'Hotei' x 'Rwain' having 39 chromosomes most likely received 13 chromosomes from the diploid 'Hotei' and 26 chromosomes from the triploid 'Rwain'.
Summary of Ploidy Levels
Diploid 'Hotei',
Diploid 'Naselle',
Diploid 1 Seedling of 'Naselle' X 'Rwain',
Triploid 'Rwain',
Triploid 1 Seedling of 'Hotei' x 'Rwain'
Source Marc Colombel
John and Sally Perkins
H: Thursday, July 28, 2011
'Horizon Monarch' X ('Lem's Monarch' X 'Very Berry')
One seedling of Rhododendron 'Horizon Monarch' X ('Lem's Monarch' X 'Very Berry'), which was raised by Marc Colombel, has been determined to be a tetraploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the tetraploid seedling of 'Horizon Monarch' (4X) X ('Lem's Monarch' (4X) X 'Very Berry' (4X)), a tetraploid was produced having 3 triploid and 7 tetraploid ancestors.
Summary of Ploidy Levels
Diploid 'Anna',
Diploid 'Hotei',
Diploid 'Lem's Cameo',
Diploid 'Nancy Evans',
Diploid 'Norman Gill',
Diploid 'The Honorable Jean Marie de Montague',
Triploid 'Broughtonii',
Triploid 'Cynthia',
Triploid 'Pink Pearl',
Tetraploid 'Countess of Derby',
Tetraploid 'Horizon Monarch',
Tetraploid 'Lem's Monarch',
Tetraploid 'Marinus Koster',
Tetraploid 'Point Defiance'
Tetraploid 'Trude Webster',
Tetraploid 'Very Berry'
Tetraploid 1 Seedling of 'Horizon Monarch' X ('Lem's Monarch' X 'Very Berry')
Source Marc Colombel
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the tetraploid seedling of 'Horizon Monarch' (4X) X ('Lem's Monarch' (4X) X 'Very Berry' (4X)), a tetraploid was produced having 3 triploid and 7 tetraploid ancestors.
Summary of Ploidy Levels
Diploid 'Anna',
Diploid 'Hotei',
Diploid 'Lem's Cameo',
Diploid 'Nancy Evans',
Diploid 'Norman Gill',
Diploid 'The Honorable Jean Marie de Montague',
Triploid 'Broughtonii',
Triploid 'Cynthia',
Triploid 'Pink Pearl',
Tetraploid 'Countess of Derby',
Tetraploid 'Horizon Monarch',
Tetraploid 'Lem's Monarch',
Tetraploid 'Marinus Koster',
Tetraploid 'Point Defiance'
Tetraploid 'Trude Webster',
Tetraploid 'Very Berry'
Tetraploid 1 Seedling of 'Horizon Monarch' X ('Lem's Monarch' X 'Very Berry')
Source Marc Colombel
John and Sally Perkins
H: Thursday, January 20, 2011
'Horizon Monarch' X 'L'Engin' is a Tetraploid
Five seedlings of Rhododendron 'Horizon Monarch' X 'L'Engin', which were raised by Marc Colombel, have been determined to be a tetraploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the tetraploid seedling of 'Horizon Monarch' (4X) X 'L'Engin' (4X), a tetraploid by a tetraploid produced a tetraploid indicating that normal meiosis most likely occurred for both tetraploid parents. In other words, the tetraploid seedlings of 'Horizon Monarch' X 'L'Engin' having 52 chromosomes received 26 chromosomes from the tetraploid 'Horizon Monarch' and 26 chromosomes from the tetraploid 'L'Engin'.
Summary of Ploidy Levels
Tetraploid 'Horizon Monarch',
Tetraploid 5 Seedlings of 'Horizon Monarch' X 'L'Engin',
Tetraploid 'L'Engin'
Source Marc Colombel
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the tetraploid seedling of 'Horizon Monarch' (4X) X 'L'Engin' (4X), a tetraploid by a tetraploid produced a tetraploid indicating that normal meiosis most likely occurred for both tetraploid parents. In other words, the tetraploid seedlings of 'Horizon Monarch' X 'L'Engin' having 52 chromosomes received 26 chromosomes from the tetraploid 'Horizon Monarch' and 26 chromosomes from the tetraploid 'L'Engin'.
Summary of Ploidy Levels
Tetraploid 'Horizon Monarch',
Tetraploid 5 Seedlings of 'Horizon Monarch' X 'L'Engin',
Tetraploid 'L'Engin'
Source Marc Colombel
John and Sally Perkins
H: Wednesday, January 19, 2011
'Horizon Monarch' OP is a Tetraploid
One seedlings of Rhododendron 'Horizon Monarch' open pollinated, which was raised by Marc Colombel, has been determined to be a tetraploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the tetraploid seedling of 'Horizon Monarch' open pollinated, a tetraploid seed parent produced a tetraploid indicating that normal meiosis most likely occurred for the tetraploid seed parent. In other words, the tetraploid seedling of 'Horizon Monarch' open pollinated having 52 chromosomes received 26 chromosomes from the tetraploid 'Horizon Monarch'.
Four seedlings were ploidy tested from seed collected by Marc Colombel from 'Horizon Monarch'. Three tested as diploid and one seedling tested as tetraploid. This indicates that the offspring of a given cross can have different ploidy levels from one offspring to another.
The 'Horizon Monarch' used to collect open pollinated seed by Marc Colombel ploidy tested as a tetraploid.
Summary of Ploidy Levels
Diploid 3 Seedlings of 'Horizon Monarch' open pollinated,
Tetraploid 1 Seedlings of 'Horizon Monarch' open pollinated,
Tetraploid 'Horizon Monarch'
Source Marc Colombel
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the tetraploid seedling of 'Horizon Monarch' open pollinated, a tetraploid seed parent produced a tetraploid indicating that normal meiosis most likely occurred for the tetraploid seed parent. In other words, the tetraploid seedling of 'Horizon Monarch' open pollinated having 52 chromosomes received 26 chromosomes from the tetraploid 'Horizon Monarch'.
Four seedlings were ploidy tested from seed collected by Marc Colombel from 'Horizon Monarch'. Three tested as diploid and one seedling tested as tetraploid. This indicates that the offspring of a given cross can have different ploidy levels from one offspring to another.
The 'Horizon Monarch' used to collect open pollinated seed by Marc Colombel ploidy tested as a tetraploid.
Summary of Ploidy Levels
Diploid 3 Seedlings of 'Horizon Monarch' open pollinated,
Tetraploid 1 Seedlings of 'Horizon Monarch' open pollinated,
Tetraploid 'Horizon Monarch'
Source Marc Colombel
John and Sally Perkins
H: Tuesday, January 18, 2011
'Horizon Monarch' OP is a Diploid
Three seedlings of Rhododendron 'Horizon Monarch' open pollinated, which were raised by Marc Colombel, have been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the diploid seedling of 'Horizon Monarch' open pollinated, a tetraploid seed parent produced a diploid indicating that supper reduced meiosis most likely occurred for the tetraploid seed parent. In other words, the diploid seedling of 'Horizon Monarch' open pollinated having 26 chromosomes received only 13 chromosomes from the tetraploid 'Horizon Monarch'. Tetraploids usually contribute 26 chromosomes to their offspring.
Four seedlings were ploidy tested from seed collected by Marc Colombel from 'Horizon Monarch'. Three tested as diploid and one seedling tested as tetraploid. This indicates that the offspring of a given cross can have different ploidy levels from one offspring to another.
The 'Horizon Monarch' used to collect open pollinated seed by Marc Colombel ploidy tested as a tetraploid. This provides direct evidence that a tetraploid seed parent can produce diploid offspring in a single generation.
Summary of Ploidy Levels
Diploid 3 Seedlings of 'Horizon Monarch' open pollinated,
Tetraploid 1 Seedlings of 'Horizon Monarch' open pollinated,
Tetraploid 'Horizon Monarch'
Source Marc Colombel
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of the diploid seedling of 'Horizon Monarch' open pollinated, a tetraploid seed parent produced a diploid indicating that supper reduced meiosis most likely occurred for the tetraploid seed parent. In other words, the diploid seedling of 'Horizon Monarch' open pollinated having 26 chromosomes received only 13 chromosomes from the tetraploid 'Horizon Monarch'. Tetraploids usually contribute 26 chromosomes to their offspring.
Four seedlings were ploidy tested from seed collected by Marc Colombel from 'Horizon Monarch'. Three tested as diploid and one seedling tested as tetraploid. This indicates that the offspring of a given cross can have different ploidy levels from one offspring to another.
The 'Horizon Monarch' used to collect open pollinated seed by Marc Colombel ploidy tested as a tetraploid. This provides direct evidence that a tetraploid seed parent can produce diploid offspring in a single generation.
Summary of Ploidy Levels
Diploid 3 Seedlings of 'Horizon Monarch' open pollinated,
Tetraploid 1 Seedlings of 'Horizon Monarch' open pollinated,
Tetraploid 'Horizon Monarch'
Source Marc Colombel
John and Sally Perkins
H: Sunday, January 09, 2011
'Le Fouesnantais' is a Tetraploid
Rhododendron 'Le Fouesnantais', which is a Marc Colombel hybrid documented as a 'Lem's Monarch' hybrid, has been determined to be a tetraploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid 'Anna',
Diploid 'Norman Gill',
Diploid 'The Honourable Jean Marie de Montague',
Tetraploid 'Le Fouesnantais',
Tetraploid 'Lem's Monarch',
Tetraploid 'Marinus Koster'
Source Marc Colombel
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid 'Anna',
Diploid 'Norman Gill',
Diploid 'The Honourable Jean Marie de Montague',
Tetraploid 'Le Fouesnantais',
Tetraploid 'Lem's Monarch',
Tetraploid 'Marinus Koster'
Source Marc Colombel
John and Sally Perkins
H: Wednesday, January 05, 2011
'Steredenn' is a Triploid
Rhododendron 'Steredenn', which is Marc Colombel hybrid documented as 'Kerneostic' x 'Lem's Monarch', has been determined to be a triploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of triploid 'Steredenn', a suspected diploid crossed with a tetraploid produced a triploid indicating that normal reduced meiosis most likely occurred for both parents. In other words, 'Steredenn' having 39 chromosomes received 13 chromosomes from the suspected diploid 'Kerneostic' and 26 chromosomes from the tetraploid 'Lem's Monarch'.
Summary of Ploidy Levels
Triploid 'Steredenn',
Tetraploid 'Lem's Monarch'
Source Marc Colombel
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of triploid 'Steredenn', a suspected diploid crossed with a tetraploid produced a triploid indicating that normal reduced meiosis most likely occurred for both parents. In other words, 'Steredenn' having 39 chromosomes received 13 chromosomes from the suspected diploid 'Kerneostic' and 26 chromosomes from the tetraploid 'Lem's Monarch'.
Summary of Ploidy Levels
Triploid 'Steredenn',
Tetraploid 'Lem's Monarch'
Source Marc Colombel
John and Sally Perkins
H: Tuesday, January 04, 2011
'Lady of Spain' is a Triploid
Rhododendron 'Lady of Spain', which is Lofthouse hybrid documented as 'Mrs. Horace Fogg' x 'Point Defiance', has been determined to be a triploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of triploid 'Lady of Spain', a suspected diploid crossed with a tetraploid produced a triploid indicating that normal reduced meiosis most likely occurred for both parents. In other words, 'Lady of Spain' having 39 chromosomes received 13 chromosomes from the suspected diploid 'Mrs. Horace Fogg' and 26 chromosomes from the tetraploid 'Point Defiance'.
Summary of Ploidy Levels
Triploid 'Lady of Spain',
Tetraploid 'Point Defiance'
Source Marc Colombel
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
In the case of triploid 'Lady of Spain', a suspected diploid crossed with a tetraploid produced a triploid indicating that normal reduced meiosis most likely occurred for both parents. In other words, 'Lady of Spain' having 39 chromosomes received 13 chromosomes from the suspected diploid 'Mrs. Horace Fogg' and 26 chromosomes from the tetraploid 'Point Defiance'.
Summary of Ploidy Levels
Triploid 'Lady of Spain',
Tetraploid 'Point Defiance'
Source Marc Colombel
John and Sally Perkins
H: Monday, January 03, 2011
'Countess of Athlone' is a Diploid
Rhododendron 'Countess of Athlone', which is a van Nes hybrid documented as 'Geoffroy Millais' x R. catawbiense 'Catawbiense Grandiflorum', has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid 'Countess of Athlone'
Source Marc Colombel
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid 'Countess of Athlone'
Source Marc Colombel
John and Sally Perkins
H: Saturday, December 18, 2010
'Naselle' is a Diploid
Rhododendron 'Naselle', which is a James Elliott hybrid documented as 'Big Sam' x 'Lem's Cameo', has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid 'Anna',
Diploid 'Lem's Cameo',
Diploid 'Naselle',
Diploid 'Norman Gill',
Diploid 'The Honorable Jean Marie de Montague'
Source Marc Colombel
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid 'Anna',
Diploid 'Lem's Cameo',
Diploid 'Naselle',
Diploid 'Norman Gill',
Diploid 'The Honorable Jean Marie de Montague'
Source Marc Colombel
John and Sally Perkins
H: Tuesday, December 14, 2010
'Topsvoort Pearl' is a Triploid
Rhododendron 'Topsvoort Pearl', which is documented as a sport of 'Pink Pearl', has been determined to be a triploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid 'Mother of Pearl',
Triploid 'Broughtonii',
Triploid ''Ebony Pearl',
Triploid 'Topsvoort Pearl',
Triploid 'Pink Pearl'
Source Marc Colombel
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid 'Mother of Pearl',
Triploid 'Broughtonii',
Triploid ''Ebony Pearl',
Triploid 'Topsvoort Pearl',
Triploid 'Pink Pearl'
Source Marc Colombel
John and Sally Perkins
H: Sunday, December 12, 2010
'Lem's Monarch' is a Tetraploid
Rhododendron 'Lem's Monarch', which is a Halfdan Lem hybrid documented as 'Anna' x 'Marinus Koster', has been determined to be a tetraploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Rhododendron 'Lem's Monarch' has as a descendants 'Rwain'.
In the case of the tetraploid 'Lem's Monarch', a diploid crossed with a tetraploid produced a tetraploid indicating that unreduced meiosis may have occurred for the diploid parent. In other words, 'Lem's Monarch' having 52 chromosomes received something similar to 26 chromosomes from the diploid 'Anna' and 26 chromosomes from the tetraploid 'Marinus Koster'.
Rhododendron 'Lem's Monarch' was also determined to be a tetraploid using flow cytometry by Dr. Thomas Ranney, J.R. Jones, and Nathan Lynch.
Summary of Ploidy Levels
Diploid 'Anna',
Diploid 'Norman Gill',
Diploid 'The Honourable Jean Marie de Montague',
Triploid 'El Camino',
Triploid 'Rwain',
Tetraploid 'Lem's Monarch',
Tetraploid 'Marinus Koster',
Tetraploid 'Pink Walloper',
Tetraploid 'Point Defiance',
Tetraploid 'Walloper No. 10'
Source Marc Colombel
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Rhododendron 'Lem's Monarch' has as a descendants 'Rwain'.
In the case of the tetraploid 'Lem's Monarch', a diploid crossed with a tetraploid produced a tetraploid indicating that unreduced meiosis may have occurred for the diploid parent. In other words, 'Lem's Monarch' having 52 chromosomes received something similar to 26 chromosomes from the diploid 'Anna' and 26 chromosomes from the tetraploid 'Marinus Koster'.
Rhododendron 'Lem's Monarch' was also determined to be a tetraploid using flow cytometry by Dr. Thomas Ranney, J.R. Jones, and Nathan Lynch.
Summary of Ploidy Levels
Diploid 'Anna',
Diploid 'Norman Gill',
Diploid 'The Honourable Jean Marie de Montague',
Triploid 'El Camino',
Triploid 'Rwain',
Tetraploid 'Lem's Monarch',
Tetraploid 'Marinus Koster',
Tetraploid 'Pink Walloper',
Tetraploid 'Point Defiance',
Tetraploid 'Walloper No. 10'
Source Marc Colombel
John and Sally Perkins
H: Thursday, December 09, 2010
'Doreen Gale' is a Tetraploid
Rhododendron 'Doreen Gale', which is a Sanders hybrid documented as 'Point Defiance' x 'Trude Webster', has been determined to be a tetraploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Rhododendron 'Doreen Gale' has as ancestors 'Anna', 'Norman Gill', 'The Honourable Jean Marie de Montague', 'Broughtonii', 'Cynthia', 'Pink Pearl', 'Marinus Koster', 'Point Defiance', 'Countess of Derby', and 'Trude Webster'.
In the case of the tetraploid 'Doreen Gale', a tetraploid crossed with a tetraploid produced a tetraploid indicating that normal reduced meiosis most likely occurred for both parents. In other words, 'Doreen Gale' having 52 chromosomes received 26 chromosomes from the tetraploid 'Point Defiance' and 26 chromosomes from the tetraploid 'Trude Webster'.
Summary of Ploidy Levels
Diploid 'Anna',
Diploid 'Norman Gill',
Diploid 'The Honourable Jean Marie de Montague',
Triploid 'Broughtonii',
Triploid 'Cynthia',
Triploid 'Pink Pearl',
Tetraploid 'Countess of Derby',
Tetraploid 'Doreen Gale',
Tetraploid 'Gorgeous George',
Tetraploid 'Marinus Koster',
Tetraploid 'Point Defiance',
Tetraploid 'Trude Webster'
Source Marc Colombel
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Rhododendron 'Doreen Gale' has as ancestors 'Anna', 'Norman Gill', 'The Honourable Jean Marie de Montague', 'Broughtonii', 'Cynthia', 'Pink Pearl', 'Marinus Koster', 'Point Defiance', 'Countess of Derby', and 'Trude Webster'.
In the case of the tetraploid 'Doreen Gale', a tetraploid crossed with a tetraploid produced a tetraploid indicating that normal reduced meiosis most likely occurred for both parents. In other words, 'Doreen Gale' having 52 chromosomes received 26 chromosomes from the tetraploid 'Point Defiance' and 26 chromosomes from the tetraploid 'Trude Webster'.
Summary of Ploidy Levels
Diploid 'Anna',
Diploid 'Norman Gill',
Diploid 'The Honourable Jean Marie de Montague',
Triploid 'Broughtonii',
Triploid 'Cynthia',
Triploid 'Pink Pearl',
Tetraploid 'Countess of Derby',
Tetraploid 'Doreen Gale',
Tetraploid 'Gorgeous George',
Tetraploid 'Marinus Koster',
Tetraploid 'Point Defiance',
Tetraploid 'Trude Webster'
Source Marc Colombel
John and Sally Perkins
H: Tuesday, December 07, 2010
'Horizon Monarch' is a Tetraploid
Rhododendron 'Horizon Monarch', which is a Ned Brockenbrough hybrid documented as 'Nancy Evans' x 'Point Defiance', has been determined to be a tetraploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Rhododendron 'Horizon Monarch' has as ancestors 'Anna', 'Hotei', 'Lem's Cameo', 'Nancy Evans', 'Norman Gill', 'The Honourable Jean Marie de Montague', 'Horizon Monarch', 'Marinus Koster', and 'Point Defiance'.
In the case of the tetraploid 'Horizon Monarch', a diploid crossed with a tetraploid produced a tetraploid indicating that unreduced meiosis may have occurred for the diploid parent. In other words, 'Horizon Monarch' having 52 chromosomes received something similar to 26 chromosomes from the diploid 'Nancy Evans' and 26 chromosomes from the tetraploid 'Point Defiance'.
Rhododendron 'Horizon Monarch' was also determined to be a tetraploid using flow cytometry by Dr. Thomas Ranney, J.R. Jones, and Nathan Lynch.
Summary of Ploidy Levels
Diploid 'Anna',
Diploid 'Hotei',
Diploid 'Lem's Cameo',
Diploid 'Nancy Evans',
Diploid 'Norman Gill',
Diploid 'The Honourable Jean Marie de Montague',
Triploid 'Steredenn',
Tetraploid 'Horizon Monarch',
Tetraploid 'Marinus Koster',
Tetraploid 'Point Defiance'
Source Marc Colombel
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Rhododendron 'Horizon Monarch' has as ancestors 'Anna', 'Hotei', 'Lem's Cameo', 'Nancy Evans', 'Norman Gill', 'The Honourable Jean Marie de Montague', 'Horizon Monarch', 'Marinus Koster', and 'Point Defiance'.
In the case of the tetraploid 'Horizon Monarch', a diploid crossed with a tetraploid produced a tetraploid indicating that unreduced meiosis may have occurred for the diploid parent. In other words, 'Horizon Monarch' having 52 chromosomes received something similar to 26 chromosomes from the diploid 'Nancy Evans' and 26 chromosomes from the tetraploid 'Point Defiance'.
Rhododendron 'Horizon Monarch' was also determined to be a tetraploid using flow cytometry by Dr. Thomas Ranney, J.R. Jones, and Nathan Lynch.
Summary of Ploidy Levels
Diploid 'Anna',
Diploid 'Hotei',
Diploid 'Lem's Cameo',
Diploid 'Nancy Evans',
Diploid 'Norman Gill',
Diploid 'The Honourable Jean Marie de Montague',
Triploid 'Steredenn',
Tetraploid 'Horizon Monarch',
Tetraploid 'Marinus Koster',
Tetraploid 'Point Defiance'
Source Marc Colombel
John and Sally Perkins
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