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Showing posts with label Triploid. Show all posts
Showing posts with label Triploid. Show all posts

H: Thursday, December 08, 2011

Lake Keowee Population contains Triploids

Deciduous azalea hybrids selected from a native population near Lake Keowee, South Carolina have been determined to be triploids using flow cytometry by a team lead by Dr. Ranney.

Summary of Ploidy Levels

Triploid Deciduous azalea hybrids from Lake Keowee population

Source: Lake Keowee population
Source: Clarence Towe

John and Sally Perkins

H: Wednesday, December 07, 2011

Wine Spring Bald contains Triploids

Two deciduous azalea hybrids selected from a native population on Wine Spring Bald, North Carolina have been determined to be triploids using flow cytometry by a team lead by Dr. Ranney.

Summary of Ploidy Levels

Triploid 2 deciduous azalea hybrids from Wine Spring Bald population

Source: Wine Spring Bald population
Source: Clarence Towe and Ron Miller

John and Sally Perkins

H: Tuesday, December 06, 2011

Cherokee County Population contains Triploids

Four deciduous azalea hybrids selected from a native population in Cherokee County, Georgia have been determined to be triploids 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

Triploid 4 deciduous azalea hybrids from Cherokee County population

Source: Cherokee County population
Source: Charles Andrews

John and Sally Perkins

H: Monday, December 05, 2011

Dawsonville Population contains Triploids

A deciduous azalea hybrid in a native population in Dawsonville, Georgia 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.

This Dawsonville population contains Rhododendron arborescens, Rhododendron canescens, Rhododendron periclymenoides, and Rhododendron calendulaceum.

Summary of Ploidy Levels

Diploid Rhododendron arborescens
Diploid Rhododendron canescens
Diploid Rhododendron periclymenoides
Triploid 1 deciduous azalea hybrid in Dawsonville population
Tetraploid Rhododendron calendulaceum

Source: Dawsonville population
Source: Charles Andrews

John and Sally Perkins

H: Saturday, December 03, 2011

'July Jester' X 'My Mary' is a Triploid

'July Jester' X 'My Mary', which is a John and Sally Perkins hybrid, has been determined to be a triploid using flow cytometry by

Dr. João Loureiro, Dr. Silvia Castro, 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 this case of this triploid (39 chromosomes), a diploid crossed with a tetraploid produced a triploid indicating normal meiosis occurred where the diploid contributed a 1x gamete (13 chromosomes) and the tetraploid contributed a 2x gamete (26 chromosomes).

Summary of Ploidy Levels

Diploid Rhododendron cumberlandense
Diploid Rhododendron prunifolium
Triploid 'July Jester' X 'My Mary'
Tetraploid Rhododendron austrinum
Tetraploid 'My Mary'

Source: John and Sally Perkins

John and Sally Perkins

H: Thursday, December 01, 2011

"viscosum glaucum not" X 'Smoky Mountaineer' is a Triploid

"viscosum glaucum not" X Rhododendron calendulaceum 'Smoky Mountaineer', which is a John and Sally Perkins hybrid, has been determined to be a triploid using flow cytometry by

Dr. João Loureiro, Dr. Silvia Castro, 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 this case of this triploid (39 chromosomes), a diploid crossed with a tetraploid produced a triploid indicating normal meiosis occurred where the diploid contributed a 1x gamete (13 chromosomes) and the tetraploid contributed a 2x gamete (26 chromosomes).

Summary of Ploidy Levels

Triploid "viscosum glaucum not" X Rhododendron calendulaceum 'Smoky Mountaineer'
Tetraploid Rhododendron calendulaceum
Tetraploid Rhododendron calendulaceum 'Smoky Mountaineer'

This seedling was grown on by

Lindy Johnson
Appalachian Native Plants
676 Waddell Road
PO Box 736
Mountain City, TN 37683

Source: John and Sally Perkins
Source: Appalachian Native Plants

John and Sally Perkins

H: Wednesday, November 30, 2011

(pruniflorum X arborescens) X 'Smoky Mountaineer' is a Triploid

(Rhododendron pruniflorum X Rhododendron arborescens) X Rhododendron calendulaceum 'Smoky Mountaineer', which is a John and Sally Perkins hybrid, has been determined to be a triploid using flow cytometry by

Dr. João Loureiro, Dr. Silvia Castro, 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 pruniflorum and Rhododendron arborescens are diploid species. Rhododendron calendulaceum is a tetraploid species.

In this case of this triploid (39 chromosomes), a diploid crossed with a tetraploid produced a triploid indicating normal meiosis occurred where the diploid contributed a 1x gamete (13 chromosomes) and the tetraploid contributed a 2x gamete (26 chromosomes).

Summary of Ploidy Levels

Diploid Rhododendron pruniflorum,
Diploid Rhododendron arborescens,
Triploid (Rhododendron pruniflorum X Rhododendron arborescens) X Rhododendron calendulaceum 'Smoky Mountaineer',
Tetraploid Rhododendron calendulaceum,
Tetraploid Rhododendron calendulaceum 'Smoky Mountaineer'

This seedling was grown on by

Lindy Johnson
Appalachian Native Plants
676 Waddell Road
PO Box 736
Mountain City, TN 37683

Source: John and Sally Perkins
Source: Appalachian Native Plants

John and Sally Perkins

H: Tuesday, November 29, 2011

Diploid Tsutsusi Rhododendron Species

In the paper "Flow Cytometric Analysis of Ploidy in Rhododendron (subgenus Tsutsusi)", S. De Schepper1, L. Leus, M. Mertens, E. Van Bockstaele, and M. De Loose found 6 Rhododendron species of section Tsutsusi to be diploid.

In the paper "Ploidy Levels and Relative Genome Sizes of Diverse Species, Hybrids, and Cultivars of Rhododendron", Jeff R. Jones, Thomas G. Ranney, Nathan P. Lynch, and Stephen L. Krebs found 1 Rhododendron species of section Tsutsusi to be diploid. Results from this paper are denoted by j.

Triploids hybrid evergreen azaleas from these 2 papers are also listed here.

Diploid

Rhododendron indicum
Rhododendron kiusianum
Rhododendron mucronatum
Rhododendron noriakianum
Rhododendron scabrum
Rhododendron simsii
Rhododendron stenopetalum ‘Linearifolium’ j

Triploid

'Crimson Majesty' j
'Euratom'
'Euratom Orange'
'Red Wing'

Mixaploid

'Casablanca Tetra'

H: Monday, November 28, 2011

prinophyllum X calendulaceum Engine Gap is a Triploid

Rhododendron prinophyllum X Rhododendron calendulaceum "Engine Gap", which is a John and Sally Perkins hybrid, has been determined to be a triploid using flow cytometry by

Dr. João Loureiro, Dr. Silvia Castro, 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 prinophyllum is diploid. Rhododendron calendulaceum is a tetraploid species.

In this case of this triploid (39 chromosomes), a diploid crossed with a tetraploid produced a triploid indicating normal meiosis occurred where the diploid contributed a 1x gamete (13 chromosomes) and the tetraploid contributed a 2x gamete (26 chromosomes).

Summary of Ploidy Levels

Diploid Rhododendron prinophyllum,
Triploid Rhododendron prinophyllum X Rhododendron calendulaceum "Engine Gap",
Tetraploid Rhododendron calendulaceum

This seedling was grown on by

Lindy Johnson
Appalachian Native Plants
676 Waddell Road
PO Box 736
Mountain City, TN 37683

Source: John and Sally Perkins
Source: Appalachian Native Plants

John and Sally Perkins

H: Sunday, November 27, 2011

'Canobie Candy' X calendulaceum Engine Gap is a Triploid

'Canobie Candy' X Rhododendron calendulaceum "Engine Gap", which is a John and Sally Perkins hybrid, has been determined to be a triploid using flow cytometry by

Dr. João Loureiro, Dr. Silvia Castro, 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.

'Canobie Candy' is diploid. Rhododendron calendulaceum is a tetraploid species.

In this case of this triploid (39 chromosomes), a diploid crossed with a tetraploid produced a triploid indicating normal meiosis occurred where the diploid contributed a 1x gamete (13 chromosomes) and the tetraploid contributed a 2x gamete (26 chromosomes).

Summary of Ploidy Levels

Diploid 'Canobie Candy',
Triploid 'Canobie Candy' X Rhododendron calendulaceum "Engine Gap",
Tetraploid Rhododendron calendulaceum

This seedling was grown on by

Lindy Johnson
Appalachian Native Plants
676 Waddell Road
PO Box 736
Mountain City, TN 37683

Source: John and Sally Perkins
Source: Appalachian Native Plants

John and Sally Perkins

H: Saturday, November 26, 2011

molle x luteum is a Triploid

Rhododendron molle X Rhododendron luteum, which is a John and Sally Perkins hybrid, has been determined to be a triploid using flow cytometry by

Dr. João Loureiro, Dr. Silvia Castro, 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 molle is diploid species. Rhododendron luteum is a tetraploid species.

In this case of this triploid (39 chromosomes), a diploid crossed with a tetraploid produced a triploid indicating normal meiosis occurred where the diploid contributed a 1x gamete (13 chromosomes) and the tetraploid contributed a 2x gamete (26 chromosomes).

Summary of Ploidy Levels

Diploid Rhododendron molle,
Triploid Rhododendron molle X Rhododendron luteum,
Tetraploid Rhododendron luteum

This seedling was grown on by

Lindy Johnson
Appalachian Native Plants
676 Waddell Road
PO Box 736
Mountain City, TN 37683

Source: John and Sally Perkins
Source: Appalachian Native Plants

John and Sally Perkins

H: Friday, November 25, 2011

'Aamurusko' is a Triploid

Rhododendron 'Aamurusko', which is a Finnish Ghent hybrid, has been determined to be a triploid using flow cytometry by

Dr. João Loureiro, Dr. Silvia Castro, 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 'Miniatum Floribundum',
Triploid 'Aida',
Triploid 'Aamurusko',
Triploid 'Bronze Unique',
Triploid 'Croceum Tricolor',
Triploid 'Daviesii',
Triploid 'Deep Rose',
Triploid 'Freya',
Triploid 'Gloria Mundi',
Triploid 'Il Tasso',
Triploid 'Josephine Klinger',
Triploid 'Phebe',
Triploid 'Phidias',
Triploid 'Pontica Album',
Triploid 'Van Houttei Flore Pleno',
Triploid 'Velasquez',
Triploid/Tetraploid 'Praxitèle',
Tetraploid 'Admiraal De Ruyter',
Tetraploid 'Altaclerensis',
Tetraploid 'Ariel',
Tetraploid 'Beaté Céleste',
Tetraploid 'Bijou des Amateurs',
Tetraploid 'Bouquet de Flore',
Tetraploid 'Cardinal,
Tetraploid 'Comte de Flandre',
Tetraploid 'Corneille',
Tetraploid 'Directeur Charles Baumann',
Tetraploid 'Durante Alle',
Tetraploid 'Electum',
Tetraploid 'Eugénie',
Tetraploid 'Fénelon',
Tetraploid 'Flameola Incarnata',
Tetraploid 'Héroine Plena,
Tetraploid 'Heureuse Surprise',
Tetraploid 'Hollandia',
Tetraploid 'Hora',
Tetraploid 'Ignacea',
Tetraploid 'Igneum Novum',
Tetraploid 'Il Tasso',
Tetraploid 'Jenny Lind',
Tetraploid 'Juliana Nova',
Tetraploid 'Julius Caesar',
Tetraploid 'Leibuir',
Tetraploid 'Lelia',
Tetraploid 'Madame Gustave Guillemot',
Tetraploid 'Marie Verschaffelt',
Tetraploid 'Minerva',
Tetraploid 'Nancy Waterer',
Tetraploid 'Oscar I',
Tetraploid 'Perfecta',
Tetraploid 'Princesse d' Orange',
Tetraploid 'Raphael de Smet'

Source: Kristian Theqvist

John and Sally Perkins

H: Thursday, November 24, 2011

'Frosthexe' is a Triploid

Rhododendron 'Frosthexe', which is a Reich hybrid documented as Rhododendron anthopogon ssp. anthopogon X Rhododendron lapponicum, has been determined to be a triploid using flow cytometry by

Dr. João Loureiro, Dr. Silvia Castro, 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 Rhododendron dauricum,
Diploid Rhododendron hippophaeoides,
Diploid Rhododendron keiskei,
Diploid Rhododendron lapponicum,
Diploid Rhododendron micranthum,
Diploid Rhododendron minus,
Diploid Rhododendron mucronulatum,
Diploid Rhododendron racemosum,
Triploid 'Angel Powder',
Triploid 'April Rhapsody',
Triploid 'Bluenose',
Triploid 'Evening Sky',
Triploid 'Frosthexe',
Triploid 'Kehr's White Ruffles',
Triploid 'Purple Gem',
Triploid 'Ramapo',
Triploid 'Ramolet',
Triploid 'Veesprite',
Tetraploid Rhododendron augustinii,
Tetraploid Rhododendron minus var. minus 'Epoch'

Source: Kristian Theqvist

John and Sally Perkins

H: Wednesday, November 23, 2011

'Veesprite' is a Triploid

Rhododendron 'Veesprite', which is a Forster hybrid documented as Rhododendron impeditum x Rhododendron racemosum, has been determined to be a triploid using flow cytometry by

Dr. João Loureiro, Dr. Silvia Castro, 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 Rhododendron minus,
Diploid Rhododendron racemosum,
Triploid 'Angel Powder',
Triploid 'April Rhapsody',
Triploid 'Bluenose',
Triploid 'Evening Sky',
Triploid 'Kehr's White Ruffles',
Triploid 'Purple Gem',
Triploid 'Ramapo',
Triploid 'Ramolet',
Triploid 'Veesprite',
Tetraploid Rhododendron minus var. minus 'Epoch'

Source: John and Sally Perkins

John and Sally Perkins

H: Tuesday, November 22, 2011

'Evening Sky' is a Triploid

Rhododendron 'Evening Sky' has been determined to be a triploid using flow cytometry by

Dr. João Loureiro, Dr. Silvia Castro, 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 Rhododendron minus,
Diploid Rhododendron racemosum,
Triploid 'Angel Powder',
Triploid 'April Rhapsody',
Triploid 'Bluenose',
Triploid 'Evening Sky',
Triploid 'Kehr's White Ruffles',
Triploid 'Purple Gem',
Triploid 'Ramapo',
Triploid 'Ramolet',
Triploid 'Veesprite',
Tetraploid Rhododendron minus var. minus 'Epoch'

Source: John and Sally Perkins

John and Sally Perkins

H: Monday, November 21, 2011

'Ramolet' is a Triploid

Rhododendron 'Ramolet', which is a Linc Foster hybrid documented as having 'Ramapo' as a seed parent, has been determined to be a triploid using flow cytometry by

Dr. João Loureiro, Dr. Silvia Castro, 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 Rhododendron minus,
Triploid 'April Rhapsody',
Triploid 'Bluenose',
Triploid 'Purple Gem',
Triploid 'Ramapo',
Triploid 'Ramolet'

Source: John and Sally Perkins

John and Sally Perkins

H: Sunday, November 20, 2011

'Ramapo' is a Fertile Triploid

Rhododendron 'Ramapo', which is a Guy Nearing hybrid documented as Rhododendron minus Carolinianum Group x Rhododendron fastigiatum, has been determined to be a triploid using flow cytometry by

Dr. João Loureiro, Dr. Silvia Castro, 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.

'Ramapo' is documented to be the seed parent of the triploid 'Ramolet'.

Summary of Ploidy Levels

Diploid Rhododendron minus,
Triploid 'April Rhapsody',
Triploid 'Bluenose',
Triploid 'Purple Gem',
Triploid 'Ramapo',
Triploid 'Ramolet'

Source: John and Sally Perkins

John and Sally Perkins

H: Saturday, November 19, 2011

'Solidarity' OP is a Triploid

An open pollinated seedling of Rhododendron 'Solidarity' has been determined to be a triploid using flow cytometry by

Dr. João Loureiro, Dr. Silvia Castro, 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 'Solidarity' is known to produce open pollinated seedpods and this seed will sometimes germinate. The plant tested is a seedling from such a seedpod.

Summary of Ploidy Levels

Triploid 'Solidarity',
Triploid 'Solidarity' OP

Source: John and Sally Perkins

John and Sally Perkins

H: Wednesday, November 02, 2011

'Django' is a Triploid

Rhododendron 'Django', which is a Hachmann hybrid documented as 'Abendglut' x Rhododendron brachycarpum ssp tigerstedtii, has been determined to be a triploid using flow cytometry by

Dr. João Loureiro, Dr. Silvia Castro, 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

Triploid 'Django'

Source: Kristian Theqvist

John and Sally Perkins

H: Thursday, October 27, 2011

'Spicy Lights' is a Triploid

Rhododendron 'Spicy Lights', which is in the Northern Lights group from the University of Minnesota documented as Rhododendron prinophyllum as the seed parent, has been determined to be a triploid using flow cytometry by

Dr. João Loureiro, Dr. Silvia Castro, 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 'Spicy Lights' appears to be sterile.

Summary of Ploidy Levels

Diploid Rhododendron canadense,
Diploid Rhododendron molle,
Diploid Rhododendron prinophyllum,
Diploid 'Lilac Lights',
Diploid 'Orchid Lights',
Diploid 'Rosy Lights',
Triploid 'Spicy Lights',
Triploid 'White Lights',
Tetraploid Rhododendron atlanticum,
Tetraploid Rhododendron calendulaceum,
Tetraploid Rhododendron luteum,
Tetraploid 'Apricot Surprise',
Tetraploid 'Candy Lights',
Tetraploid 'Golden Lights',
Tetraploid 'Lemon Lights',
Tetraploid 'Mandarin Lights',
Tetraploid 'Northern Hi-Lights',
Tetraploid 'Tri-Lights'

Source: Kristian Theqvist

John and Sally Perkins
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