DOI: 10.36347/sajb.2015.v03i01.008

Pages: 38-42

Phylogenetic inference was conducted to analyze genetic variation of five Monopterus albus populations from south China based on mitochondrial control region of 501 bp in length. Totally 69 individuals were examined and 74 variable sites were detected, in which 12 were singleton variable sites, 62 were parsimony informative sites. These individuals indicated lower level of nucleotide diversity (0.03385±0.00326). Thirty-four haplotypes were analyzed from the 69 individuals, with a haplotype diversity of 0.959±0.013. Phylogenetic analysis revealed three genetic lineages, lineage A, lineage B and lineage C. Among the five populations, only lower degree of gene flow occurred between Hengyang and Guilin populations for relatively short distances departed from each other. However, other three populations (Fuqing, Shantou and Nanjing) were departed from on another by long distances and geographical segregation. Geographic isolation forces all animals to evolve on their own separate paths.