Conserved globulin gene across eight grass genomes identify fundamental units of the loci encoding seed storage proteins

doi:10.1007/s10142-009-0135-x

	Conserved globulin gene across eight grass genomes identify fundamental units of the loci encoding seed storage proteins
	Gu, Yong Qiang 1; Wanjugi, Humphrey 1; Coleman-Derr, Devin 1; Kong, Xiuying 2; Anderson, Olin D.1
刊名	FUNCTIONAL & INTEGRATIVE GENOMICS
	2010
卷号	10 期号:1 页码:111-122
关键词	Wheat High molecular weight glutenin Globulin Duplication Genome evolution Domestication
ISSN号	1438-793X
DOI	10.1007/s10142-009-0135-x
通讯作者	Gu, Yong Qiang
英文摘要	The wheat high molecular weight (HMW) glutenins are important seed storage proteins that determine bread-making quality in hexaploid wheat (Triticum aestivum). In this study, detailed comparative sequence analyses of large orthologous HMW glutenin genomic regions from eight grass species, representing a wide evolutionary history of grass genomes, reveal a number of lineage-specific sequence changes. These lineage-specific changes, which resulted in duplications, insertions, and deletions of genes, are the major forces disrupting gene colinearity among grass genomes. Our results indicate that the presence of the HMW glutenin gene in Triticeae genomes was caused by lineage-specific duplication of a globulin gene. This tandem duplication event is shared by Brachypodium and Triticeae genomes, but is absent in rice, maize, and sorghum, suggesting the duplication occurred after Brachypodium and Triticeae genomes diverged from the other grasses similar to 35 Ma ago. Aside from their physical location in tandem, the sequence similarity, expression pattern, and conserved cis-acting elements responsible for endosperm-specific expression further support the paralogous relationship between the HMW glutenin and globulin genes. While the duplicated copy in Brachypodium has apparently become nonfunctional, the duplicated copy in wheat has evolved to become the HMW glutenin gene by gaining a central prolamin repetitive domain.
学科主题	Genetics & Heredity ; GENETICS & HEREDITY
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000275429100010
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5440]
专题	作物科学研究所_分子生物学系
作者单位	1.ARS, Western Reg Res Ctr, USDA, Albany, CA 94710 USA 2.Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Key Lab Crop Germplasm Resources & Utilizat,MOA, Beijing 10081, Peoples R China
推荐引用方式 GB/T 7714	Gu, Yong Qiang,Wanjugi, Humphrey,Coleman-Derr, Devin,et al. Conserved globulin gene across eight grass genomes identify fundamental units of the loci encoding seed storage proteins[J]. FUNCTIONAL & INTEGRATIVE GENOMICS,2010,10(1):111-122.
APA	Gu, Yong Qiang,Wanjugi, Humphrey,Coleman-Derr, Devin,Kong, Xiuying,&Anderson, Olin D..(2010).Conserved globulin gene across eight grass genomes identify fundamental units of the loci encoding seed storage proteins.FUNCTIONAL & INTEGRATIVE GENOMICS,10(1),111-122.
MLA	Gu, Yong Qiang,et al."Conserved globulin gene across eight grass genomes identify fundamental units of the loci encoding seed storage proteins".FUNCTIONAL & INTEGRATIVE GENOMICS 10.1(2010):111-122.