Artificial selection for determinate growth habit in soybean

doi:10.1073/pnas.1000088107

	Artificial selection for determinate growth habit in soybean
	Tian, Zhixi 4; Wang, Xiaobo 3; Lee, Rian 1,2; Li, Yinghui 3; Specht, James E.5; Nelson, Randall L.6,7; McClean, Phillip E.1,2; Qiu, Lijuan 3; Ma, Jianxin 4
刊名	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
	2010
卷号	107 期号:19 页码:8563-8568
关键词	comparative genomics domestication diversification point mutation
ISSN号	0027-8424
DOI	10.1073/pnas.1000088107
通讯作者	Tian, Zhixi
英文摘要	Determinacy is an agronomically important trait associated with the domestication in soybean (Glycine max). Most soybean cultivars are classifiable into indeterminate and determinate growth habit, whereas Glycine soja, the wild progenitor of soybean, is indeterminate. Indeterminate (Dt1/Dt1) and determinate (dt1/dt1) genotypes, when mated, produce progeny that segregate in a monogenic pattern. Here, we show evidence that Dt1 is a homolog (designated as GmTfl1) of Arabidopsis terminal flower 1 (TFL1), a regulatory gene encoding a signaling protein of shoot meristems. The transition from indeterminate to determinate phenotypes in soybean is associated with independent human selections of four distinct single-nucleotide substitutions in the GmTfl1 gene, each of which led to a single amino acid change. Genetic diversity of a minicore collection of Chinese soybean landraces assessed by simple sequence repeat (SSR) markers and allelic variation at the GmTfl1 locus suggest that human selection for determinacy took place at early stages of landrace radiation. The GmTfl1 allele introduced into a determinate-type (tfl1/tfl1) Arabidopsis mutants fully restored the wild-type (TFL1/TFL1) phenotype, but the GmTfl1 allele in tfl1/tfl1 mutants did not result in apparent phenotypic change. These observations indicate that GmTfl1 complements the functions of TFL1 in Arabidopsis. However, the GmTfl1 homeolog, despite its more recent divergence from GmTfl1 than from Arabidopsis TFL1, appears to be sub- or neo-functionalized, as revealed by the differential expression of the two genes at multiple plant developmental stages and by allelic analysis at both loci.
学科主题	Multidisciplinary Sciences ; MULTIDISCIPLINARY SCIENCES
语种	英语
出版者	NATL ACAD SCIENCES
WOS记录号	WOS:000277591200015
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5423]
专题	作物科学研究所_分子生物学系
作者单位	1.N Dakota State Univ, Dept Plant Sci, Fargo, ND 58108 USA 2.N Dakota State Univ, Genom & Bioinformat Program, Fargo, ND 58108 USA 3.Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, Peoples R China 4.Purdue Univ, Dept Agron, W Lafayette, IN 47907 USA 5.Univ Nebraska, Dept Agron & Hort, Lincoln, NE 68583 USA 6.Univ Illinois, Soybean Maize Germplasm Pathol & Genet Res Unit, USDA ARS, Urbana, IL 61801 USA 7.Univ Illinois, Dept Crop Sci, Urbana, IL 61801 USA
推荐引用方式 GB/T 7714	Tian, Zhixi,Wang, Xiaobo,Lee, Rian,et al. Artificial selection for determinate growth habit in soybean[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2010,107(19):8563-8568.
APA	Tian, Zhixi.,Wang, Xiaobo.,Lee, Rian.,Li, Yinghui.,Specht, James E..,...&Ma, Jianxin.(2010).Artificial selection for determinate growth habit in soybean.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,107(19),8563-8568.
MLA	Tian, Zhixi,et al."Artificial selection for determinate growth habit in soybean".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 107.19(2010):8563-8568.