Sequence variation of mitochondrial DNA ND5 in captive South China tigers (Panthera tigris amoyensis)

This paper represents the first study of the genetic diversity of captive South China tigers Panthera tigris amoyensis by sequence variation in a fragment of mitochondrial DNA (mtDNA) NADH dehydrogenase subunit 5 (ND5) gene. Two haplotypes (haplotype I and haplotype II) were identified and the captive population had a bias towards haplotype I. This subspecies as a whole demonstrated an extremely low level of genetic diversity with the nucleotide diversity of 0.057±0.021%. The mtDNA ND5 variations detected in the present study could provide significant information to the studbook data of the South China tiger.