You are here Articles GENETIC DIVERSITY OF WILD ELEPHANT IN THE NORTHEASTERN PART OF THAILAND

GENETIC DIVERSITY OF WILD ELEPHANT IN THE NORTHEASTERN PART OF THAILAND

E-mail Print PDF

WILD_ELEPHANT_tumThe phylogeography and genetic diversity of wild elephants in the northeastern part of Thailand was studied at Phuwua Wildlife Sanctuary (PW), Nong Khai Province; Dongyai Wildlife Sanctuary (DY), Buri Rum Province; Phuluang Wildlife Sanctuary (PL), Loei Province and Phukhieo Wildlife Sanctuary (PK), Chaiyaphum Province. The study was procedured from September 2009 through August 2010. The objectives were to investigate the levels of genetic diversity within populations of wild elephants in northeastern Thailand and also to study the evolutionary relationship among population clusters and with other areas within Thailand. PCR technique and base sequences from cytochrome b to the heading of control region in mitochondrial DNA were used.

 

The results from 39, 57, 10, and 8 dung samples from PW, PK, PL and DY wildlife sanctuaries, respectively, showed 2 halplotypes (A and B) in PW, 2 haplotypes in PK (A and C), 2 haplotypes in PL (A and B), and only one haplotype in DY (A). Genetic analysis of the tip of cytochrome b to the base of the control region found variation at 27 sites of the 601 base pairs sampled which can be categorized into 3 haplotypes (AH, BQ, and NewB) for PW, 3 haplotypes (AH, NewA1, and BH) for PK, 3 haplotypes (AH, AB, and BO) for PL, and only 2 haplotypes (AH and AD) for DY. It can thus be concluded that there are 8 haplotypes of wild elephant genetic diversity and 2 population clusters, clade A and clade B. In Northeast Thailand, clade A was found more than clade B. The elephants in groups AB, AD, AH, and newA1 share more common traits than any other groups. Distinctively, elephants in group newB have a close relation with elephant group BO. AD is regarded as the ancestor of the other haplotypes.

 


Key words: genetic diversity, wild elephant, protected area, Northeastern part of Thailand

Donwload Full version (PDF 349KB)


Joomlart