High genetic diversity in isolated populations of Thesium ebracteatum at the edge of its distribution range

0429966 - BÚ 2015 RIV NL eng J - Článek v odborném periodiku
Dostálek, Tomáš - Münzbergová, Zuzana - Plačková, Ivana
High genetic diversity in isolated populations of Thesium ebracteatum at the edge of its distribution range.
Conservation Genetics. Roč. 15, č. 1 (2014), s. 75-86. ISSN 1566-0621. E-ISSN 1572-9737
Grant CEP: GA MŠMT 2B06178
Institucionální podpora: RVO:67985939
Klíčová slova: isozymes * NATURA 2000 * Santalaceae
Kód oboru RIV: EF - Botanika
Impakt faktor: 2.185, rok: 2014

The aim of this study was to estimate the degree and distribution of genetic diversity within Central-European populations of Thesium ebracteatum—one of the most endangered plant species in Europe. We found no correlation between geographical and genetic distance, which supports the idea that individual populations are strongly isolated. T. ebracteatum undergoes extensive clonal growth and may survive for very long periods of time without generative reproduction. Consistent with this, we found a strong and significant relationship between genetic diversity and population size. All populations occupying an area greater than 300 m2 showed high genetic diversity, whereas small populations contained less genetic diversity. Therefore, conservation priorities could generally be decided based on population size.
Trvalý link: http://hdl.handle.net/11104/0234915