New insights into the origin and evolution of alpha-amylase genes in green plants

doi:10.1038/s41598-019-41420-w

CORC > 成都生物研究所 > 中国科学院成都生物研究所 > 食品安全与环境治理领域 > 农业生物技术研究

	New insights into the origin and evolution of alpha-amylase genes in green plants
	Ju, Liangliang 1,2; Pan, Zhifen 1; Zhang, Haili 1; Li, Qiao 1; Liang, Junjun 1; Deng, Guangbing 1; Yu, Maoqun 1; Long, Hai 1
刊名	SCIENTIFIC REPORTS
	2019
卷号	9 页码:4929
ISSN号	2045-2322
DOI	10.1038/s41598-019-41420-w
产权排序	1
文献子类	Article
英文摘要	Gene duplication is a source of genetic materials and evolutionary changes, and has been associated with gene family expansion. Functional divergence of duplicated genes is strongly directed by natural selections such as organism diversification and novel feature acquisition. We show that, plant alpha-amylase gene family (AMY) is comprised of six subfamilies (AMY1-AMY6) that fell into two ancient phylogenetic lineages (AMY3 and AMY4). Both AMY1 and AMY2 are grass-specific and share a single-copy ancestor, which is derived from grass AMY3 genes that have undergone massive tandem and whole-genome duplications during evolution. Ancestral features of AMY4 and AMY5/AMY6 genes have been retained among four green algal sequences (Chrein_08. g362450, Vocart_0021s0194, Dusali_0430s00012 and Monegl_16464), suggesting a gene duplication event following Chlorophyceae diversification. The observed horizontal gene transfers between plant and bacterial AMYs, and chromosomal locations of AMY3 and AMY4 genes in the most ancestral green body (C. reinhardtii), provide evidences for the monophyletic origin of plant AMYs. Despite subfamily-specific sequence divergence driven by natural selections, the active site and SBS1 are well-conserved across different AMY isoforms. The differentiated electrostatic potentials and hydrogen bands-forming residue polymorphisms, further imply variable digestive abilities for a broad substrates in particular tissues or subcellular localizations.
学科主题	Multidisciplinary
URL标识	查看原文
WOS关键词	DETECTING POSITIVE SELECTION ; ARABIDOPSIS-THALIANA ; STARCH DEGRADATION ; STRUCTURAL ORGANIZATION ; MULTIGENE FAMILY ; DOMAIN-C ; RICE ; BINDING ; BARLEY ; SEQUENCE
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000461762600046
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/30899]
专题	环境治理与食品安全领域_农业生物技术研究
通讯作者	Long, Hai
作者单位	1.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Sichuan, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Ju, Liangliang,Pan, Zhifen,Zhang, Haili,et al. New insights into the origin and evolution of alpha-amylase genes in green plants[J]. SCIENTIFIC REPORTS,2019,9:4929.
APA	Ju, Liangliang.,Pan, Zhifen.,Zhang, Haili.,Li, Qiao.,Liang, Junjun.,...&Long, Hai.(2019).New insights into the origin and evolution of alpha-amylase genes in green plants.SCIENTIFIC REPORTS,9,4929.
MLA	Ju, Liangliang,et al."New insights into the origin and evolution of alpha-amylase genes in green plants".SCIENTIFIC REPORTS 9(2019):4929.