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Genetic structure among and within peripheral and central populations of three endangered floodplain violets
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SYSNO ASEP 0049663 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Genetic structure among and within peripheral and central populations of three endangered floodplain violets Title Genetická struktura periferních a centrálních populací tří ohrožených druhů nivních violek Author(s) Eckstein, R. L. (DE)
O´Neill, R. A. (DE)
Danihelka, Jiří (BU-J) RID, ORCID
Otte, A. (DE)
Köhler, W. (DE)Source Title Molecular Ecology. - : Wiley - ISSN 0962-1083
Roč. 15, - (2006), s. 2367-2379Number of pages 13 s. Language eng - English Country GB - United Kingdom Keywords AFLP ; genetic diversity ; Viola Subject RIV EF - Botanics CEZ AV0Z60050516 - BU-J (2005-2011) Annotation AFLP (4 primer combinations) was analysed in 950 individuals of 50 populations. Marginal populations were smaller and were more isolated in two species. Differentiation was stronger, genetic diversity and gene flow lower in marginal populations of the two more isolated species. Species-specific differences in genetic structure were related to effects of fragmentation. Variation between regions (3-6%), among (30-37%) and within populations (60-64%) was significant. Marginal populations lacked loci that were rare and localised in core populations. Loss of widespread loci in marginal Viola stagnina populations indicated genetic erosion. Autocorrelation within populations was statistically significant up to 10-20 m. Peripheral populations contributed significantly to genetic variation and contained unique loci, which made them important for the conservation of genetic diversity. There were no significant correlations between molecular variance and population size or isolation. Workplace Institute of Botany Contact Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8 Year of Publishing 2007
Number of the records: 1