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Título : New chromosome counts in the genus Cousinia and the related genus Schmalhausenia (Asteraceae, Cardueae)
Autor : Susanna de la Serna, Alfonso; Garcia-Jacas, Núria; Vilatersana, Roser; Garnatje, Teresa; Vallès, Joan; Ghaffari, Seyed Mahmood
Palabras clave : Arctium group
Carduinae
Compositae
Dysploidy
Karyology
Fecha de publicación : dic-2003
Editor: Blackwell Publishing
Citación : Botanical Journal of the Linnean Society 143(4): 411-418 (2003).
http://dx.doi.org/10.1111/j.1095-8339.2003.00231.x
Resumen: Twenty chromosome counts are reported in the genus Cousinia and the monotypic genus Schmalhausenia, which are part of the Arctium group, from Armenia, Iran, Kazakhstan and Uzbekistan. Twelve are new and eight provide confirmation of scarce or disputable previous data. The correlation between karyological data, pollen type and molecular phylogeny is very close, and on this basis two main groups can be defined. One is the arctioid group, which comprises the genera Arctium and Schmalhausenia, and a small part of the genus Cousinia, with x = 18. The other is the genus Cousinia s.s., with a dysploid series ranging from x = 13-11. Some considerations on the chromosomal evolution in the group are made.
Descripción : The definitive version is available at www.blackwell-synergy.com: http://dx.doi.org/10.1111/j.1095-8339.2003.00231.x.
URI : http://hdl.handle.net/10261/5811
DOI: 10.1111/j.1095-8339.2003.00231.x
ISSN: 0024-4074
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