中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Divergence and adaptive evolution of the gibberellin oxidase genes in plants

文献类型:期刊论文

作者Huang, Yuan; Wang, Xi; Ge, Song1; Rao, Guang-Yuan
刊名BMC EVOLUTIONARY BIOLOGY
出版日期2015
卷号15
关键词Characteristic motif Functional divergence Gibberellin Phytohormones Positive selection 2-oxoglutarate-dependent dioxygenase
ISSN号1471-2148
DOI10.1186/s12862-015-0490-2
文献子类Article
英文摘要Background: The important phytohormone gibberellins (GAs) play key roles in various developmental processes. GA oxidases (GAoxs) are critical enzymes in GA synthesis pathway, but their classification, evolutionary history and the forces driving the evolution of plant GAox genes remain poorly understood. Results: This study provides the first large-scale evolutionary analysis of GAox genes in plants by using an extensive whole-genome dataset of 41 species, representing green algae, bryophytes, pteridophyte, and seed plants. We defined eight subfamilies under the GAox family, namely C-19-GA2ox, C-20-GA2ox, GA20ox, GA3ox, GAox-A, GAox-B, GAox-C and GAox-D. Of these, subfamilies GAox-A, GAox-B, GAox-C and GAox-D are described for the first time. On the basis of phylogenetic analyses and characteristic motifs of GAox genes, we demonstrated a rapid expansion and functional divergence of the GAox genes during the diversification of land plants. We also detected the subfamily-specific motifs and potential sites of some GAox genes, which might have evolved under positive selection. Conclusions: GAox genes originated very early-before the divergence of bryophytes and the vascular plants and the diversification of GAox genes is associated with the functional divergence and could be driven by positive selection. Our study not only provides information on the classification of GAox genes, but also facilitates the further functional characterization and analysis of GA oxidases.
学科主题Evolutionary Biology ; Genetics & Heredity
出版地LONDON
WOS关键词DETECTING MOLECULAR ADAPTATION ; MULTIPLE SEQUENCE ALIGNMENT ; CODON-SUBSTITUTION MODELS ; AMINO-ACID SITES ; POSITIVE SELECTION ; SECONDARY METABOLISM ; MAXIMUM-LIKELIHOOD ; DUPLICATE GENES ; FUNCTIONAL-CHARACTERIZATION ; PHYSCOMITRELLA-PATENS
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000361811600001
出版者BIOMED CENTRAL LTD
资助机构National Natural Science Foundation of China [30990240]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/26000]  
专题植物研究所_系统与进化植物学研究中心_系统与进化植物学研究中心_学位论文
作者单位1.Peking Univ, Coll Life Sci, Beijing 100871, Peoples R China
2.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China
推荐引用方式
GB/T 7714
Huang, Yuan,Wang, Xi,Ge, Song,et al. Divergence and adaptive evolution of the gibberellin oxidase genes in plants[J]. BMC EVOLUTIONARY BIOLOGY,2015,15.
APA Huang, Yuan,Wang, Xi,Ge, Song,&Rao, Guang-Yuan.(2015).Divergence and adaptive evolution of the gibberellin oxidase genes in plants.BMC EVOLUTIONARY BIOLOGY,15.
MLA Huang, Yuan,et al."Divergence and adaptive evolution of the gibberellin oxidase genes in plants".BMC EVOLUTIONARY BIOLOGY 15(2015).

入库方式: OAI收割

来源:植物研究所

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