Počet záznamů: 1
Genetic structure among and within peripheral and central populations of three endangered floodplain violets
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SYSNO ASEP 0049663 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název Genetic structure among and within peripheral and central populations of three endangered floodplain violets Překlad názvu Genetická struktura periferních a centrálních populací tří ohrožených druhů nivních violek Tvůrce(i) Eckstein, R. L. (DE)
O´Neill, R. A. (DE)
Danihelka, Jiří (BU-J) RID, ORCID
Otte, A. (DE)
Köhler, W. (DE)Zdroj.dok. Molecular Ecology. - : Wiley - ISSN 0962-1083
Roč. 15, - (2006), s. 2367-2379Poč.str. 13 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova AFLP ; genetic diversity ; Viola Vědní obor RIV EF - Botanika CEZ AV0Z60050516 - BU-J (2005-2011) Anotace 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. Pracoviště Botanický ústav Kontakt 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 Rok sběru 2007
Počet záznamů: 1