期刊
PLANT BIOSYSTEMS
卷 143, 期 2, 页码 361-368出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/11263500902722683
关键词
Albizia lebbeck; genetic variation; random amplified polymorphic DNA; inter-simple sequence repeat
资金
- Department of Biotechnology, Ministry of Science and Technology, Government of India [BT/PR/3760/AGR/16/309/2003-04.]
Albizia lebbeck (L.) Benth., a popular multi-purpose legume tree species, has a wide distribution throughout the Indian subcontinent. The species is highly valued for its quality timber, gum yield and therapeutical uses. However, the increasing social and economical pressures are devastating the natural stands of A. lebbeck forests. So, there is a need to estimate the genetic variation present in A. lebbeck populations. Both RAPD and ISSR molecular markers were used to analyse 172 individuals representing eight populations of the species in different geographical range. The within-population genetic diversity ranged from 1.23 to 1.38. The total gene variability was 0.34 of which 0.17 (50%) accounted for within-population gene variability. The genetic differentiation between populations (Gst = 0.49) was significantly correlated to geographical distance (r = 0.61, p < 0.001). An UPGMA clustering suggests a high level of genetic isolation due to distance. This study revealed the genetic differentiation which will provide a template for adaptation and evolution of the populations and species.
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