The complete mitochondrial genomes of the whistling duck (Dendrocygna javanica) and black swan (Cygnus atratus): dating evolutionary divergence in Galloanserae

doi:10.1007/s11033-009-9868-9

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	The complete mitochondrial genomes of the whistling duck (Dendrocygna javanica) and black swan (Cygnus atratus): dating evolutionary divergence in Galloanserae
	Jiang, Feng 1,2,6; Miao, Yongwang 2,3; Liang, Wei 4; Ye, Haiyan 1; Liu, Hailin 1; Liu, Bin 1,5
刊名	MOLECULAR BIOLOGY REPORTS
	2010-07-01
卷号	37 期号:6 页码:3001-3015
关键词	Mitochondrial Genome Phylogenomics Divergence Estimation Galloanserae
ISSN号	0301-4851
DOI	10.1007/s11033-009-9868-9
文献子类	Article
英文摘要	Galloanserae is an ancient and diverse avian group, for which comprehensive molecular evidence relevant to phylogenetic analysis in the context of molecular chronology is lacking. In this study, we present two additional mitochondrial genome sequences of Galloanserae (the whistling duck, Dendrocygna javanica, and the black swan, Cygnus atratus) to broaden the scope of molecular phylogenetic reconstruction. The lengths of the whistling duck's and black swan's mitochondrial genomes are 16,753 and 16,748 bases, respectively. Phylogenetic analyses suggest that Dendrocygna is more likely to be in a basal position of the branch consisting of Anatinae and Anserinae, an affiliation that does not conform to its traditional classification. Bayesian approaches were employed to provide a rough timescale for Galloanserae evolution. In general, a narrow range of 95% confidence intervals gave younger estimates than those based on limited genes and estimated that at least two lineages originated before the Coniacian epoch around 90 MYA, well before the Cretaceous-Tertiary boundary. In addition, these results, which were compatible with estimates from fossil evidence, also imply that the origin of numerous genera in Anseriformes took place in the late Oligocene to early Miocene. Taken together, the results presented here provide a working framework for future research on Galloanserae evolution, and they underline the utility of whole mitochondrial genome sequences for the resolution of deep divergence.; Galloanserae is an ancient and diverse avian group, for which comprehensive molecular evidence relevant to phylogenetic analysis in the context of molecular chronology is lacking. In this study, we present two additional mitochondrial genome sequences of Galloanserae (the whistling duck, Dendrocygna javanica, and the black swan, Cygnus atratus) to broaden the scope of molecular phylogenetic reconstruction. The lengths of the whistling duck's and black swan's mitochondrial genomes are 16,753 and 16,748 bases, respectively. Phylogenetic analyses suggest that Dendrocygna is more likely to be in a basal position of the branch consisting of Anatinae and Anserinae, an affiliation that does not conform to its traditional classification. Bayesian approaches were employed to provide a rough timescale for Galloanserae evolution. In general, a narrow range of 95% confidence intervals gave younger estimates than those based on limited genes and estimated that at least two lineages originated before the Coniacian epoch around 90 MYA, well before the Cretaceous-Tertiary boundary. In addition, these results, which were compatible with estimates from fossil evidence, also imply that the origin of numerous genera in Anseriformes took place in the late Oligocene to early Miocene. Taken together, the results presented here provide a working framework for future research on Galloanserae evolution, and they underline the utility of whole mitochondrial genome sequences for the resolution of deep divergence.
学科主题	Biochemistry & Molecular Biology
URL标识	查看原文
语种	英语
WOS记录号	WOS:000279686600055
公开日期	2010-12-24
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/5939]
专题	海洋研究所_实验海洋生物学重点实验室
作者单位	1.Chinese Acad Sci, Beijing Inst Genom, Beijing 101300, Peoples R China 2.Yunnan Agr Univ, Kunming 650201, Peoples R China 3.Yunnan Univ, Kunming 650091, Peoples R China 4.Hainan Normal Univ, Haikou 571158, Hainan, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China 6.Chinese Acad Sci, Inst Zool, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Feng,Miao, Yongwang,Liang, Wei,et al. The complete mitochondrial genomes of the whistling duck (Dendrocygna javanica) and black swan (Cygnus atratus): dating evolutionary divergence in Galloanserae[J]. MOLECULAR BIOLOGY REPORTS,2010,37(6):3001-3015.
APA	Jiang, Feng,Miao, Yongwang,Liang, Wei,Ye, Haiyan,Liu, Hailin,&Liu, Bin.(2010).The complete mitochondrial genomes of the whistling duck (Dendrocygna javanica) and black swan (Cygnus atratus): dating evolutionary divergence in Galloanserae.MOLECULAR BIOLOGY REPORTS,37(6),3001-3015.
MLA	Jiang, Feng,et al."The complete mitochondrial genomes of the whistling duck (Dendrocygna javanica) and black swan (Cygnus atratus): dating evolutionary divergence in Galloanserae".MOLECULAR BIOLOGY REPORTS 37.6(2010):3001-3015.