Population genetic analyses of an amphi-Atlantic species: Lychnis alpina (Caryophyllaceae) |
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Authors: | K B Haraldsen J Wesenberg |
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Institution: | Div. of Botany, Dept of Biology, University of Oslo. P O. Box 1045, N-0316 Oslo, Norway |
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Abstract: | Lychnis alpina is a perennial caryophyllaceous plant with an amphi-Atlantic distribution. 27 populations are described on the basis of allozyme data from 11 electro-phoretic loci. L. alpina has a relatively low level of genetic variation, 3 of the loci are polymorphic ( P.,%= 20.2%) and the mean expected heterozygosity per indivindual is H3= 0.233 the three polymorphic loci included (H = 0.064, 11 loci included). Despite relatively low level of genetic variation, the genetic diversity among populations is relatively high with FST= 0.51. A hierarchial analysis of genetic diversity demonstrates that most of the genetic diversity exists as interpopulational, intra-regional diversity. Genetic identity is not associated with the intercontinental geographical distribution of the populations, neither is the diversity correspondant to taxonomic relationships. |
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