About 336-444 bp mitochondrial D-loop region and tRNA gene were sequen
ced for 40 individuals of the giant panda which were collected from Ma
bian, Meigu, Yuexi, Baoxing, Pingwu, Qingchuan, Nanping and Baishuijia
ng, respectively. 9 haplotypes were found in 21 founders. The results
showed that the giant panda has low genetic variations, and that there
is no notable genetic isolation among geographical populations. The a
ncestor of the living giant panda population perhaps appeared in the l
ate Pleistocene, and unfortunately, might have suffered bottle-neck at
tacks. Afterwards, its genetic diversity seemed to recover to same ext
ent.