Sequence variation and polymorphic sites observed on the mitochondrial D-loop sequence. AY488491.1: Ref. from GenBank; TC: Thanh Chuong, BY: Bao Yen, LB: LangBiang, M: Murrah, T: Thailand buffaloes. A: Adenine; T: Thymine; G: Guanine; C: Cytosine; (.): Identity; (-): deletion