Giemsa karyotypes and their evolutionary significance inScilla bifolia,S. drunensis,andS. vindobonensis (Liliaceae) |
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Authors: | Johann Greilhuber Franz Speta |
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Institution: | (1) Botanisches Institut der Universität Wien, Rennweg 14, A-1030 Wien, Austria;(2) Oberösterreichisches Landesmuseum, Museumstraße 14, A-4010 Linz, Austria |
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Abstract: | Quantitatively evaluated C-banded and conventional karyograms are presented for the related speciesScilla bifolia subsp.danubialis
Speta,S. drunensis (Speta)Speta, andS. vindobonensis
Speta. On the basis of banding patterns and karyotype structureS. bifolia subsp.danubialis (2n = 18, 2×) andS. drunensis (2n = 36, 4×) are quite similar, whileS. vindobonensis (2n = 18, 2×) is entirely different. There is a moderate degree of karyotypic variation withinS. bifolia subsp.danubialis andS. drunensis. However, inS. vindobonensis karyotypes and banding patterns are almost completely stable over a geographical range of about 500 km. The present results confirm the recent taxonomic separation ofS. vindobonensis fromS. bifolia, and suggest a considerable phylogenetic distance between these two diploid species. The results are discussed with reference to the morphological characters of the species and their geographical distribution.Evolution ofScilla and Related Genera, II.Dedicated to Univ.-Prof. Dr.Elisabeth Tschermak-Woess on the occasion of her 60th birthday. |
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Keywords: | Liliaceae Scilleae Scilla bifolia L subsp danubialis S drunensis S vindobonensis Heterochromatin Giemsa C-banding patterns genome evolution cytogeography |
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