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@article{808390, author = {Mandáková, Terezie and Münzbergová, Zuzana}, article_location = {Austria}, article_number = {March}, keywords = {allozyme; Aster amellus; Asteraceae; autopolyploidy; genetic diversity; heterozygotes; polysomic inheritance; secondary contact zone}, language = {eng}, issn = {0378-2697}, journal = {PLANT SYSTEMATICS AND EVOLUTION}, title = {Morphometric and genetic differentiation of diploid and hexaploid populations of Aster amellus agg. in a contact zone}, volume = {Neuveden}, year = {2008} }
TY - JOUR ID - 808390 AU - Mandáková, Terezie - Münzbergová, Zuzana PY - 2008 TI - Morphometric and genetic differentiation of diploid and hexaploid populations of Aster amellus agg. in a contact zone JF - PLANT SYSTEMATICS AND EVOLUTION VL - Neuveden IS - March SP - 155 EP - 155 PB - Springer Wien SN - 03782697 KW - allozyme KW - Aster amellus KW - Asteraceae KW - autopolyploidy KW - genetic diversity KW - heterozygotes KW - polysomic inheritance KW - secondary contact zone N2 - The aim of this study is to determine the origin, genetic relationships and morphological differences between diploid and hexaploid cytotypes of Aster amellus aggregate (Asteraceae) at their contact zone in the Czech Republic. We collected data on morphological and isozyme variation in a range of populations of the two cytotypes. We also studied the plasticity of the morphological traits in a common garden. The results suggest that hexaploid individuals of Aster amellus aggregate are of autopolyploid origin. The isozyme data indicate that diploids and hexaploids have different evolutionary histories. This, together with previous detailed cytological and ecological analyses, suggests that there is a secondary contact zone between the two cytotypes in the Czech Republic. The results of multivariate morphometric analyses and data on plasticity of the morphological traits indicate that it is not possible to distinguish the two cytotypes morphologically. The previously published morphological distinction between the cytotypes is thus not supported. ER -
MANDÁKOVÁ, Terezie and Zuzana MÜNZBERGOVÁ. Morphometric and genetic differentiation of diploid and hexaploid populations of Aster amellus agg. in a contact zone. \textit{PLANT SYSTEMATICS AND EVOLUTION}. Austria: Springer Wien, 2008, Neuveden, March, p.~155-170. ISSN~0378-2697.
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