Karyological study of the genus Gundelia (Compositae) in Turkey

Karyotypes in 12 taxa of Gundelia are compared, based on Feulgen-stained somatic metaphase chromosomes. The karyotypes of G. anatolica, G. asperrima, G. cilicica, G. colemerikensis, G. dersim, G. glabra, G. komagenensis, G. mesopotamica, G. munzuriensis and G. vitekii are described for the first tim...

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Main Authors: İlker Genç, Mehmet Firat
Format: Article
Language:English
Published: Firenze University Press 2019-05-01
Series:Caryologia
Subjects:
Online Access:https://riviste.fupress.net/index.php/caryologia/article/view/250
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author İlker Genç
Mehmet Firat
author_facet İlker Genç
Mehmet Firat
author_sort İlker Genç
collection DOAJ
description Karyotypes in 12 taxa of Gundelia are compared, based on Feulgen-stained somatic metaphase chromosomes. The karyotypes of G. anatolica, G. asperrima, G. cilicica, G. colemerikensis, G. dersim, G. glabra, G. komagenensis, G. mesopotamica, G. munzuriensis and G. vitekii are described for the first time. Karyological analyses indicate relationships among the species with respect to their asymmetry indices. All Gundelia species studied were diploid with 2n = 2x = 18 chromosomes. All karyotypes are symmetrical, consisting of metacentric and submetacentric chromosomes. The submetacentric chromosomes of all the investigated specimens contain a secondary constriction. Three chromosome types were identified according to the position of the secondary constrictions. The chromosomes ranged in size from 2.00 µm to 7.02 µm. The total haploid chromosome length (THL) varied from 24.97 μm (G. asperrima) to 42.56 μm (G. rosea). To determine the karyological relationships among taxa, PCoA (Principal Coordinate Analysis) with six uncorrelated parameters was performed.
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spelling doaj.art-33d1c8dd07d440838e5b76a02cb77c3e2022-12-21T23:31:07ZengFirenze University PressCaryologia0008-71142165-53912019-05-0172110.13128/cayologia-250Karyological study of the genus Gundelia (Compositae) in Turkeyİlker GençMehmet FiratKaryotypes in 12 taxa of Gundelia are compared, based on Feulgen-stained somatic metaphase chromosomes. The karyotypes of G. anatolica, G. asperrima, G. cilicica, G. colemerikensis, G. dersim, G. glabra, G. komagenensis, G. mesopotamica, G. munzuriensis and G. vitekii are described for the first time. Karyological analyses indicate relationships among the species with respect to their asymmetry indices. All Gundelia species studied were diploid with 2n = 2x = 18 chromosomes. All karyotypes are symmetrical, consisting of metacentric and submetacentric chromosomes. The submetacentric chromosomes of all the investigated specimens contain a secondary constriction. Three chromosome types were identified according to the position of the secondary constrictions. The chromosomes ranged in size from 2.00 µm to 7.02 µm. The total haploid chromosome length (THL) varied from 24.97 μm (G. asperrima) to 42.56 μm (G. rosea). To determine the karyological relationships among taxa, PCoA (Principal Coordinate Analysis) with six uncorrelated parameters was performed.https://riviste.fupress.net/index.php/caryologia/article/view/250Chromosome numberkaryotype asymmetrysecondary constrictionCichorieaeScolyminae
spellingShingle İlker Genç
Mehmet Firat
Karyological study of the genus Gundelia (Compositae) in Turkey
Caryologia
Chromosome number
karyotype asymmetry
secondary constriction
Cichorieae
Scolyminae
title Karyological study of the genus Gundelia (Compositae) in Turkey
title_full Karyological study of the genus Gundelia (Compositae) in Turkey
title_fullStr Karyological study of the genus Gundelia (Compositae) in Turkey
title_full_unstemmed Karyological study of the genus Gundelia (Compositae) in Turkey
title_short Karyological study of the genus Gundelia (Compositae) in Turkey
title_sort karyological study of the genus gundelia compositae in turkey
topic Chromosome number
karyotype asymmetry
secondary constriction
Cichorieae
Scolyminae
url https://riviste.fupress.net/index.php/caryologia/article/view/250
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