Giemsa banded karyotypes,systematics, and evolution inAnacyclus (Asteraceae-Anthemideae) |
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Authors: | Dieter Schweizer Friedrich Ehrendorfer |
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Institution: | (1) Botanisches Institut, Universität Wien, Rennweg 14, A-1030 Wien, Austria |
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Abstract: | Giemsa C-banding allows the differentiation of six, otherwise very similar karyotypes from the small genusAnacyclus. Banding style —with stable centromeric and nucleolar bands, and diverse specific banding patterns in distal chromosome segments—contributes significantly to generic demarcation and systematic grouping. The amount of banding corresponds to heterochromatic chromocentres and increases from perennials to annuals. Relationships with other nucleotype parameters and evolutionary mechanisms are discussed.First contribution of a series on Giemsa Banded Karyotypes, Systematics, and Evolution inAnthemideae (Asteraceae). |
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Keywords: | Asteraceae (Compositae) Anthemideae Anacyclus Karyosystematics cytotaxonomy Giemsa C-banding specific banding patterns heterochromatin karyotype evolution |
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