Origin and phylogeny of chloroplasts revealed by a simple correlation analysis of complete genomes

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	Origin and phylogeny of chloroplasts revealed by a simple correlation analysis of complete genomes
	Chu, KH; Qi, J; Yu, ZG; Anh, V; Chu, KH , Chinese Univ Hong Kong, Dept Biol, Shatin, Hong Kong, Peoples R China.
刊名	MOLECULAR BIOLOGY AND EVOLUTION
	2004
卷号	21 期号:1 页码:200-206
关键词	Mitochondrial Genome Protein Sequences Plastid Genome Nucleotide-sequence Gene-transfer Red Algae Evolution Information Nucleus Trees
ISSN号	0737-4038
英文摘要	The complete sequenced genomes of chloroplast have provided much information on the origin and evolution of this organelle. In this paper we attempt to use these sequences to test a novel approach for phylogenetic analysis of complete genomes based on correlation analysis of compositional vectors. All protein sequences from 21 complete chloroplast genomes are analyzed in comparison with selected archaea, eubacteria, and eukaryotes. The distance-based analysis shows that the chloroplast genomes are most closely related to cyanobacteria, consistent with the endosymbiotic origin of chloroplasts. The chloroplast genomes are separated to two major clades corresponding to chlorophytes (green plants) s.1. and rhodophytes (red algae) s.1. The interrelationships among the chloroplasts are largely in agreement with the current understanding on chloroplast evolution. For instance, the analysis places the chloroplasts of two chromophytes (Guillardia and Odontella) within the rhodophyte lineage, supporting secondary endosymbiosis as the source of these chloroplasts. The relationships among the green algae and land plants in our tree also agree with results from traditional phylogenetic analyses. Thus, this study establishes the value of our simple correlation analysis in elucidating the evolutionary relationships among genomes. It is hoped that this approach will provide insights on comparative genome analysis.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000189149300021
公开日期	2012-08-30
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/14147]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Chu, KH , Chinese Univ Hong Kong, Dept Biol, Shatin, Hong Kong, Peoples R China.
推荐引用方式 GB/T 7714	Chu, KH,Qi, J,Yu, ZG,et al. Origin and phylogeny of chloroplasts revealed by a simple correlation analysis of complete genomes[J]. MOLECULAR BIOLOGY AND EVOLUTION,2004,21(1):200-206.
APA	Chu, KH,Qi, J,Yu, ZG,Anh, V,&Chu, KH , Chinese Univ Hong Kong, Dept Biol, Shatin, Hong Kong, Peoples R China..(2004).Origin and phylogeny of chloroplasts revealed by a simple correlation analysis of complete genomes.MOLECULAR BIOLOGY AND EVOLUTION,21(1),200-206.
MLA	Chu, KH,et al."Origin and phylogeny of chloroplasts revealed by a simple correlation analysis of complete genomes".MOLECULAR BIOLOGY AND EVOLUTION 21.1(2004):200-206.