caa a22 4500 475806271 CHVBK 20180406123747.0 cr unu---uuuuu 170329e20000301xx s 000 0 eng 10.1007/BF00985462 doi (NATIONALLICENCE)springer-10.1007/BF00985462 Allozyme diversity in relation to geographic distribution and population size in Lathyrus vernus (L.) Bernh. (Fabaceae) [Elektronische Daten] [K. Schiemann, T. Tyler, B. Widén] Lathyrus vernus (L.) Bernh. is a diploid, long-lived perennial and insect-pollinated herb with no special adaptation to long-distance dispersal. It occurs on neutral soil in deciduous forests throughout western Eurasia. Due to specific habitat preferences,L. vernus has a fragmented distribution with isolated populations. We investigated allozyme variation at eleven loci in 20 populations ofL. vernus from one geographically central region (the Czech Republic and the Slovak Republic) and two geographically marginal regions (southern and central Sweden) in the species present-day distribution. There was a clear differentiation between the three regions and the genetic distance between the populations was highly correlated with geographic distance. The total genetic diversity (HT) was 0.354. The proportion of genetic diversity due to differentiation between regions, and to differentiation between populations within regions, accounted for 10% each. There was no difference in level of genetic diversity between the three regions. No significant difference in level of genetic diversity was found between small and large populations. The genetic diversity inL. vernus may either be a result of the long generation-time of the species or peculiarities in the post-glacial migration species, e.g. survival only in refugia far east of the sampled populations and/or migration as a continuous process not involving founder-events. Springer-Verlag, 2000 Allozymes nationallicence genetic diversity nationallicence Lathyrus vernus nationallicence migration nationallicence population size nationallicence Schiemann K. Department of Systematic Botany, University of Lund, Östra Vallgatan 20, SE-223 61, Lund, Sweden aut Tyler T. Department of Systematic Botany, University of Lund, Östra Vallgatan 20, SE-223 61, Lund, Sweden aut Widén B. Department of Systematic Botany, University of Lund, Östra Vallgatan 20, SE-223 61, Lund, Sweden aut Plant Systematics and Evolution Springer-Verlag 225/1-4(2000-03-01), 119-132 0378-2697 225:1-4<119 2000 225 606 https://doi.org/10.1007/BF00985462 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00985462 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Schiemann K. Department of Systematic Botany, University of Lund, Östra Vallgatan 20, SE-223 61, Lund, Sweden aut NATIONALLICENCE 700 1- Tyler T. Department of Systematic Botany, University of Lund, Östra Vallgatan 20, SE-223 61, Lund, Sweden aut NATIONALLICENCE 700 1- Widén B. Department of Systematic Botany, University of Lund, Östra Vallgatan 20, SE-223 61, Lund, Sweden aut NATIONALLICENCE 773 0- Plant Systematics and Evolution Springer-Verlag 225/1-4(2000-03-01), 119-132 0378-2697 225:1-4<119 2000 225 606 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer