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    Wyświetlanie 1-3 z 3
    Tytuł:
    Low genetic diversity in the endangered population of Viola uliginosa in its locus classicus at Rzaska near Cracow [southern Poland] as revealed by AFLP markers
    Autorzy:
    Cieslak, E
    Paul, W.
    Ronikier, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/58111.pdf
    Data publikacji:
    2006
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    genetic diversity
    endangered population
    Viola uliginosa
    Rzaska n.Krakow
    Polska
    AFLP marker
    plant conservation
    rare plant
    threatened plant
    wet habitat
    genetic structure
    population structure
    Opis:
    An extremely endangered population of Viola uliginosa Besser at the classical locality of this taxon has been studied. The AFLP analysis was based on 18 specimens of V. uliginosa (about 10% of preserved individuals); additionally, two individuals of V. riviniana were included in the data set as the out group. A high genetical uniformity of the whole population (similarity indexes close to 1) was detected. It was not correlated significantly with the spatial distribution of the plants. The study serves as a basis for practical conservation measures and at the same time as a starting point for a more extensive research on the genetical variability of the species throughout its range.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2006, 75, 3; 245-251
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cochlearia polonica Frohl. (Brassicaceae), a narrow endemic species of southern Poland: history of conservation efforts, overview of current population resources and genetic structure of populations
    Autorzy:
    Cieslak, E.
    Kazmierczakowa, R.
    Ronikier, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/56510.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    Cochlearia polonica
    Brassicaceae
    endemic species
    Southern Poland
    history
    conservation effort
    current population
    population resource
    genetic structure
    genetic variation
    population structure
    Opis:
    Cochlearia polonica Fröhl. (Brassicaceae) is one of the rarest species in the Polish and European flora and a taxon endemic to a very small area in southern Poland. Due to industrial activities and subsequent transformation of habitats it was extinct in all natural localities around 1994. The persistence of the species was ensured thanks to the active protection efforts including a series of transplantations based on the material from the last and decreasing natural population. The history of conservation efforts of C. polonica provides a model example of successful active protection in the European flora. Here, we provide a complete review comprising the following aims: (i) outline of the discovery and taxonomic conceptions on C. polonica, (ii) review of conservation efforts aimed at preserving its populations, (iii) description of the existing population resources, and (iv) analysis of the genetic structure of all existing populations based on previously published data and new, supplementary results.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2010, 79, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Low genetic diversity of declining Viola uliginosa (Violaceae) at its southern range limits in Poland
    Autorzy:
    Paul, W.
    Cieslak, E.
    Ronikier, M.
    Migdalek, G.
    Slomka, A.
    Zabicka, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/19351.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Opis:
    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.
    Źródło:
    Acta Biologica Cracoviensia. Series Botanica; 2016, 58, 2
    0001-5296
    Pojawia się w:
    Acta Biologica Cracoviensia. Series Botanica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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