title: Genetic Diversity and Phylogenetic Analysis of South-East Asian Duck Populations Based on the mtDNA D-loop Sequences.
abstract: The maternally inherited mitochondrial DNA (mtDNA) D-loop region is widely used for exploring genetic relationships and for investigating the origin of various animal species. Currently, domestic ducks play an important role in animal protein supply. In this study, partial mtDNA D-loop sequences were obtained from 145 samples belonging to six South-East Asian duck populations and commercial duck population. All these populations were closely related to the mallard duck (Anas platyrhynchos), as indicated by their mean overall genetic distance. Sixteen nucleotide substitutions were identified in sequence analyses allowing the distinction of 28 haplotypes. Around 42.76% of the duck sequences were classified as Hap_02, which completely matched withAnas platyrhynchosduck species. The neighbor-joining phylogenetic tree also revealed that South-East Asian duck populations were closely related toAnas platyrhynchos. Network profiles were also traced using the 28 haplotypes. Overall, results showed that those duck populations D-loop haplotypes were shared between several duck breeds from Korea and Bangladesh sub continental regions. Therefore, these results confirmed that South-East Asian domestic duck populations have been domesticated fromAnas platyrhynchosduck as the maternal origins.
authors.affiliation: Division of Animal and Dairy Science, Chungnam National University, Daejeon 305-764, Korea.
authors.forename: H
authors.initials: H
authors.lastname: Sultana
authors.affiliation: Division of Animal and Dairy Science, Chungnam National University, Daejeon 305-764, Korea.
authors.forename: D W
authors.initials: DW
authors.lastname: Seo
authors.affiliation: Department of Animal Breeding and Genetics, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh.
authors.forename: M S A
authors.initials: MS
authors.lastname: Bhuiyan
authors.affiliation: Division of Animal and Dairy Science, Chungnam National University, Daejeon 305-764, Korea.
authors.forename: N R
authors.initials: NR
authors.lastname: Choi
authors.affiliation: Genetbio Inc., Daejeon, 305-500, Korea.
authors.forename: M R
authors.initials: MR
authors.lastname: Hoque
authors.affiliation: Poultry Science Division, National Institute of Animal Science, RDA, Cheonan 331-801, Korea.
authors.forename: K N
authors.initials: KN
authors.lastname: Heo
authors.affiliation: Division of Animal and Dairy Science, Chungnam National University, Daejeon 305-764, Korea.
authors.forename: J H
authors.initials: JH
authors.lastname: Lee
keywords: D-loop Region; Duck Populations; Haplotype; Mitochondrial DNA; Phylogeny