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Genetic diversity of mitochondrial cytochrome b gene in Chinese native buffalo
Author(s) -
Lei C. Z.,
Zhang C. M.,
Weining S.,
Campana M. G.,
Bower M. A.,
Zhang X. M.,
Liu L.,
Lan X. Y.,
Chen H.
Publication year - 2011
Publication title -
animal genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.756
H-Index - 81
eISSN - 1365-2052
pISSN - 0268-9146
DOI - 10.1111/j.1365-2052.2011.02174.x
Subject(s) - biology , swamp , introgression , lineage (genetic) , genetic diversity , domestication , haplotype , cytochrome b , phylogenetic tree , genetics , mitochondrial dna , gene pool , gene , allele , ecology , population , demography , sociology
Summary The origins of the domestic water buffalo remain contentious. To better understand the origins of Chinese water buffalo, we sequenced the complete mitochondrial cytochrome b ( MT‐CYB ) gene from 270 individuals representing 13 Chinese domestic swamp buffalo populations. We found genetic evidence of introgression of river buffalo into Chinese swamp buffalo herds. Swamp buffalo haplotypes can be divided into two highly divergent lineages (A and B), suggesting that Chinese native swamp buffalo have two maternal origins. We found that the A→G transition in the buffalo MT‐CYB gene stop codon resulted in buffalo haplotypes being terminated by one of two stop codons: AGA or AGG. AGA is common to river buffalo and lineage A of swamp buffalo, while AGG is specific to lineage B of swamp buffalo. Lineage A appears to have been domesticated in China. Further genetic evidence is required to clarify the origins of lineage B.