Low genetic diversity of declining Viola uliginosa (Violaceae) at its southern range limits in Poland
PBN-AR
Instytucja
Instytut Botaniki im. Władysława Szafera Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
Acta Biologica Cracoviensia Series Botanica
ISSN
0001-5296
EISSN
1898-0295
Wydawca
POLSKA AKADEMIA NAUK
DOI
Rok publikacji
2016
Numer zeszytu
2
Strony od-do
41-52
Numer tomu
58
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+ 3
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Creative Commons — Uznanie autorstwa-Niekomercyjne-Bez utworów zależnych
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Język
angielski
Treść
Viola uliginosa (bog violet) is a declining species throughout its range due to – mostly anthropogenic – drying out of the wet habitats it occupies. Using AFLP markers, we aimed to estimate the genetic diversity in Polish populations, that may give an insight into the situation of plant populations facing rapid loss of natural habitats. Bog violet from several dispersed Polish populations is generally characterized by very low genetic diversity (HT = 0.048), even lower than several other endangered violets; therefore, we suggest that it should preserve at least EN rank in the red lists/red data books. The mean gene diversity within all populations (HS) was much lower than gene diversity (GST) between populations (0.020 versus 0.583, respectively) which supports the prevalence of clonal propagation of the species (mainly by stolons) but may also point to some significance of autogamy in cleisto- and chasmogamous flowers. A high FST value and the Mantel test for all populations revealed significant isolation by distance. Geographically neighboring pairs of populations formed genetic clusters supported by all (in the case of two closest populations) or most statistical analyses applied. Special attention should be paid to the locus classicus of the species in Rząska, consisting of a small number of individuals, forming a genetically distinct group, revealing very low gene diversity (Hj = 0.009) and the longest genetic distance to the remaining populations. Our results can contribute to planning future protection measures for the species at this and other locations. Genetic structure of the studied populations suggests local affinities of populations but does not generally support hypothesized recent continuity of V. uliginosa range along the river valleys of southern Poland; this view may, however, be altered with widening of the scope of studied populations and chosen molecular markers.
Inne
System-identifier
PX-588076d482ced74b7ce8f2d0
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