Genetic diversity and relationship of Fritillaria thunbergii Miq. landraces and related taxa
Genetic diversity and differentiation of four landraces of Fritillaria thunbergii Miq. and two congeners Fritillaria cirrhosa D. Don and Fritillaria anhuiensis S. C. Chen et S. F. Yin were evaluated using ISSR markers. The results showed that the genetic diversity of F. thunbergii was high at the sp...
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Veröffentlicht in: | Biochemical systematics and ecology 2011-08, Vol.39 (4-6), p.725-731 |
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Sprache: | eng |
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Zusammenfassung: | Genetic diversity and differentiation of four landraces of Fritillaria thunbergii Miq. and two congeners Fritillaria cirrhosa D. Don and Fritillaria anhuiensis S. C. Chen et S. F. Yin were evaluated using ISSR markers. The results showed that the genetic diversity of F. thunbergii was high at the specie level but relatively lower at the landrace level. A high level of genetic differentiation among four F. thunbergii landraces was detected based on the gene differentiation coefficient and the AMOVA, in line with the low inter-landrace gene flow. MS-tree analysis showed that the four F. thunbergii landraces were clustered on adjacent positions of the tree, and that Kuanye (Ft-KY) landrace was relatively distantly related to other landraces. In line with the MS-tree analysis, PCoA revealed that the three species of Fritillaria can be divided into two groups and three subgroups, among which there occurred a remarkable genetic differentiation.
► High genetic diversity of F. thunbergii was revealed by ISSR marker. ► High genetic differentiation and relatively lower diversity were detected for the landraces. ► Kuanye (Ft-KY) landrace was relatively far away from other F. thunbergii landraces. ► Substantial genetic divergence occurred among the three species of Fritillaria. ► Genetic relationship between F. cirrhosa and F. anhuiensis is relatively close. |
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ISSN: | 0305-1978 1873-2925 |
DOI: | 10.1016/j.bse.2011.06.010 |