Sequence and expression variations suggest an adaptive role for the DA1-like gene family in the evolution of soybeans

doi:10.1186/s12870-015-0519-0

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	Sequence and expression variations suggest an adaptive role for the DA1-like gene family in the evolution of soybeans
	Zhao, Man 1,4; Gu, Yongzhe 1; He, Lingli 1; Chen, Qingshan 3; He, Chaoying
刊名	BMC PLANT BIOLOGY
	2015
卷号	15
关键词	Evolution Gene expression Ortholog Paralog Soybean Transgenic analysis
ISSN号	1471-2229
DOI	10.1186/s12870-015-0519-0
文献子类	Article
英文摘要	Background: The DA1 gene family is plant-specific and Arabidopsis DA1 regulates seed and organ size, but the functions in soybeans are unknown. The cultivated soybean (Glycine max) is believed to be domesticated from the annual wild soybeans (Glycine soja). To evaluate whether DA1-like genes were involved in the evolution of soybeans, we compared variation at both sequence and expression levels of DA1-like genes from G. max (GmaDA1) and G. soja (GsoDA1). Results: Sequence identities were extremely high between the orthologous pairs between soybeans, while the paralogous copies in a soybean species showed a relatively high divergence. Moreover, the expression variation of DA1-like paralogous genes in soybean was much greater than the orthologous gene pairs between the wild and cultivated soybeans during development and challenging abiotic stresses such as salinity. We further found that overexpressing GsoDA1 genes did not affect seed size. Nevertheless, overexpressing them reduced transgenic Arabidopsis seed germination sensitivity to salt stress. Moreover, most of these genes could improve salt tolerance of the transgenic Arabidopsis plants, corroborated by a detection of expression variation of several key genes in the salt-tolerance pathways. Conclusions: Our work suggested that expression diversification of DA1-like genes is functionally associated with adaptive radiation of soybeans, reinforcing that the plant-specific DA1 gene family might have contributed to the successful adaption to complex environments and radiation of the plants.
学科主题	Plant Sciences
出版地	LONDON
WOS关键词	ABIOTIC STRESS TOLERANCE ; ABSCISIC-ACID ; SALT TOLERANCE ; PROLINE BIOSYNTHESIS ; GLYCINE-SOJA ; ORGAN SIZE ; ARABIDOPSIS ; DOMESTICATION ; MECHANISMS ; PROTEIN
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	BMC
WOS记录号	WOS:000355912600001
资助机构	Chinese Academy of Sciences [XDA08010105]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/26013]
专题	系统与进化植物学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 2.Northeast Agr Univ, Coll Agr, Harbin 150030, Heilongjiang, Peoples R China 3.Zhejiang Univ Technol, Coll Biol & Environm Engn, Hangzhou 310014, Zhejiang, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Man,Gu, Yongzhe,He, Lingli,et al. Sequence and expression variations suggest an adaptive role for the DA1-like gene family in the evolution of soybeans[J]. BMC PLANT BIOLOGY,2015,15.
APA	Zhao, Man,Gu, Yongzhe,He, Lingli,Chen, Qingshan,&He, Chaoying.(2015).Sequence and expression variations suggest an adaptive role for the DA1-like gene family in the evolution of soybeans.BMC PLANT BIOLOGY,15.
MLA	Zhao, Man,et al."Sequence and expression variations suggest an adaptive role for the DA1-like gene family in the evolution of soybeans".BMC PLANT BIOLOGY 15(2015).