caa a22 4500 477038573 CHVBK 20180405111311.0 cr unu---uuuuu 170330e19960301xx s 000 0 eng 10.1007/BF00985821 doi (NATIONALLICENCE)springer-10.1007/BF00985821 Enzyme analysis of genetic variation and relationships in diploid and polyploid taxa of Galium ( Rubiaceae ) [Elektronische Daten] [Friedrich Ehrendorfer, Rosabelle Samuel, Wilhelm Pinsker] Allozyme variation at 11 loci (with 37 alleles) was studied electrophoretically in seven outbreeding, closely related diploid and tetraploid taxa, seven from sect.Leptogalium and two from sect.Leiogalium. Whereas the sections are clearly distinct by several different alleles, aggregates, species and subspecies differ only in the frequency or presence/absence of common alleles. The resulting dendrogram suggests phylogenetic relationships and is supported by other multidisciplinary evidence. Tetraploids have originated independently in several groups, and there is evidence for tetrasomic inheritance and thus for autopolyploidy in spite of normal meiotic bivalent pairing and partly suspected hybrid origin. Tetraploids differ from related diploids only little in number of alleles and expected heterozygosity within populations, but clearly exhibit higher numbers of genotypes. This often corresponds to their greater morphological variability, increased adaptive flexibility, and better colonizing capacity compared to related diploids. Springer-Verlag, 1996 Rubiaceae nationallicence Galium nationallicence Allozyme variation nationallicence systematics nationallicence ploidy level nationallicence evolution nationallicence Ehrendorfer Friedrich Institut für Botanik und Botanischer Garten, Universität Wien, Rennweg 14, A-1030, Wien, Austria aut Samuel Rosabelle Institut für Botanik und Botanischer Garten, Universität Wien, Rennweg 14, A-1030, Wien, Austria aut Pinsker Wilhelm Institut für Allgemeine Biologie, AG Genetik, Universität Wien, Währinger Straße 17, A-1090, Wien, Austria aut Plant Systematics and Evolution Springer-Verlag 202/1-2(1996-03-01), 121-135 0378-2697 202:1-2<121 1996 202 606 https://doi.org/10.1007/BF00985821 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00985821 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ehrendorfer Friedrich Institut für Botanik und Botanischer Garten, Universität Wien, Rennweg 14, A-1030, Wien, Austria aut NATIONALLICENCE 700 1- Samuel Rosabelle Institut für Botanik und Botanischer Garten, Universität Wien, Rennweg 14, A-1030, Wien, Austria aut NATIONALLICENCE 700 1- Pinsker Wilhelm Institut für Allgemeine Biologie, AG Genetik, Universität Wien, Währinger Straße 17, A-1090, Wien, Austria aut NATIONALLICENCE 773 0- Plant Systematics and Evolution Springer-Verlag 202/1-2(1996-03-01), 121-135 0378-2697 202:1-2<121 1996 202 606 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer