期刊名称：International Journal of Biodiversity and Conservation
电子版ISSN：2141-243X
出版年度：2014
卷号：6
期号：5
页码：363-372
DOI：10.5897/IJBC2013.0649
语种：English
出版社：Academic Journals
摘要：Random amplified polymorphic DNA-polymerase chain reaction (RAPD-PCR) was applied to analyze the genetic variation among Channa striatus collected from four geographically distant locations in India. After initial PCR screening, nine random oligodecamers viz. OPA10, OPA11, OPA15, OPAC01, OPAC03, OPAC05, OPAC07, OPAC09 and OPAC19 which generated the RAPD profile for the four C. striatus populations were selected. Amplification using these nine primers resulted in fragments ranging in length between 309-3029 bp assigned to 87 loci. Estimates of Nei’s (1978) unbiased genetic distance (D) values ranged from 0.3242-0.6320. Unweighted pair group method with arithmetic mean (UPGMA) dendrogram constructed on the basis of genetic distance revealed very close genetic relationship among C. striatus populations of river Tamirabarani (Tamil Nadu) and river Periyar (Kerala). Both populations from river Tamirabarani and Periyar were found to be genetically closer to fish populations from Kolleru Lake (Andhra Pradesh) whereas C. striatus population from Brahmani River (Orissa) was found to be genetically distant from the rest of the populations.
关键词：Indian snakehead;Channa striatus;genetic diversity;random amplified polymorphic DNA (RAPD)
