Isolation and genetic diversity of endangered grey nurse shark (Carcharias taurus) populations.

ABSTRACT: Anthropogenic impacts are believed to be the primary threats to the eastern Australian population of grey nurse sharks (Carcharias taurus), which is listed as critically endangered, and the most threatened population globally. Analyses of 235 polymorphic amplified fragment length polymorphisms (AFLP) loci and 700 base pairs of mitochondrial DNA control region provide the first account of genetic variation and geographical partitioning (east and west coasts of Australia, South Africa) in C. taurus. Assignment tests, analysis of relatedness and Fst values all indicate that the Australian populations are isolated from South Africa, with negligible migration between the east and west Australian coasts. There are significant differences in levels of genetic variation among regions. Australian C

SUBMITTER: Stow A 

PROVIDER: S-EPMC1618890 | biostudies-literature | 2006 Jun

REPOSITORIES: biostudies-literature