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Molecular composition and evolution of the chalcone synthase (CHS) gene family in five species of Camellia (Theaceae)
Yang, JB; Tian, X; Li, DZ; Guo, ZH
2003-06-01
发表期刊ACTA BOTANICA SINICA
卷号45期号:6页码:659-666
摘要The molecular composition and evolution of the chalcone synthase (CHS) gene family from five species in Camellia (Theaceae) are explored in this study. Sixteen CHS exon 2 from four Camellia species were amplified from total DNA by PCR method. Three sequences of the fifth species in Camellia and two sequences of Glycine max as the designated outgroups were obtained from GenBank. Our results indicated that CHS gene family in Camellia was differentiated to three subfamilies (A, B, C) during the evolutionary history with six groups (A1, A2, A3, BI, B2, C). Among them, only group A2 was possessed by all five species in this study. However, the other five groups were detected only in some species of the plants studied. All members of CHS gene family in this study had high sequence similarity, more than 90% among the members in the same subfamily and more than 78% among different subfamilies at nucleotide level., According to the estimated components of amino acids, the function of CHS genes in Camellia had been diverged. The nucleotide substitutions of the different groups were not identical. Based on phylogenetic analyse inferred from sequences of CHS genes and their deduced amino acid sequences, we concluded that the CHS genes with new function in this genus were evolved either by mutations on several important sites or by accumulation of the mutations after the gene duplication. A further analysis showed that the diversification of CHS genes in Camellia still occurred recently, and the evolutionary models were different to some extant among different species. So we assumed that the different evolutionary models resulted from the impacts of variable environmental elements after the events of speciation.
关键词Camellia Chalcone Synthase (Chs) Gene Family Molecular Evolution
学科领域Biochemistry & Molecular Biology ; Plant Sciences
收录类别SCI
语种英语
WOS研究方向Biochemistry & Molecular Biology ; Plant Sciences
WOS类目Biochemistry & Molecular Biology ; Plant Sciences
WOS记录号WOS:000185012300005
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/11163
专题中国西南野生生物种质资源库
作者单位Chinese Acad Sci, Kunming Inst Bot, Lab Plant Biodivers & Biogeog, Kunming 650204, Peoples R China
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GB/T 7714
Yang, JB,Tian, X,Li, DZ,et al. Molecular composition and evolution of the chalcone synthase (CHS) gene family in five species of Camellia (Theaceae)[J]. ACTA BOTANICA SINICA,2003,45(6):659-666.
APA Yang, JB,Tian, X,Li, DZ,&Guo, ZH.(2003).Molecular composition and evolution of the chalcone synthase (CHS) gene family in five species of Camellia (Theaceae).ACTA BOTANICA SINICA,45(6),659-666.
MLA Yang, JB,et al."Molecular composition and evolution of the chalcone synthase (CHS) gene family in five species of Camellia (Theaceae)".ACTA BOTANICA SINICA 45.6(2003):659-666.
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