The possible origin of thick stem in Chinese wild soybean (Glycine soja)

doi:10.1007/s00606-013-0946-z

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	The possible origin of thick stem in Chinese wild soybean (Glycine soja)
	Wang, Ke-Jing; Li, Xiang-Hua
刊名	PLANT SYSTEMATICS AND EVOLUTION
	2014
卷号	300 期号:5 页码:1079-1087
关键词	Thick stem Hybridization origin Wild soybean Glycine soja
ISSN号	0378-2697
DOI	10.1007/s00606-013-0946-z
通讯作者	Wang, Ke-Jing
英文摘要	Thicker, erect stem and enlarged seeds are characteristic of the domestication of cultivated soybeans (Glycine max) from its progenitor, wild soybean (G. soja). Wild soybeans have different stem thicknesses but the thick stem as defined here appears in a small number of small-seeded wild soybeans (a parts per thousand currency sign2.0 g/100-seeds) in China. However, little attention has been paid to this phenomenon in considering the origin of thick stem in wild soybean. Here, we addressed this question through the study of a mixed field of wild, semi-wild and cultivated soybeans. Thick-stemmed samples had lower sensitivity to light period, higher mean genetic diversity (H (e) = 0.090, H = 0.535) and higher mean multilocus outcrossing rate (t (m) = 9.77 %), while thin-stemmed plants were the opposite (H (e) = 0.029, H = 0.416) and lower mean outcrossing rate (t (m) = 5.88 %). F statistics calculations indicated that there was genetic differentiation between the thin and thick stems. UPGM cluster analysis showed that not only were thick-stemmed wild soybeans genetically different from thin-stemmed ones, but they were also genetically closer to semi-wild soybean, to varying degrees completely dependent on seed size. These data strongly implied that the plants with thick stems had more complicated genetic backgrounds than the thin-stemmed ones, and that they were related to cultivated soybeans. This study suggests that if plants have distinctly thick stems (an average 2.5-fold thicker than other thin-stemmed plants) or stems similar to semi-wild plants and/or near to local soybeans in a natural wild population adjacent to farmlands, such plants could be cultivar-introgressive offspring.
学科主题	Plant Sciences ; Evolutionary Biology ; EVOLUTIONARY BIOLOGY ; PLANT SCIENCES
语种	英语
出版者	SPRINGER WIEN
WOS记录号	WOS:000334523600028
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/4890]
专题	作物科学研究所
作者单位	Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Wang, Ke-Jing,Li, Xiang-Hua. The possible origin of thick stem in Chinese wild soybean (Glycine soja)[J]. PLANT SYSTEMATICS AND EVOLUTION,2014,300(5):1079-1087.
APA	Wang, Ke-Jing,&Li, Xiang-Hua.(2014).The possible origin of thick stem in Chinese wild soybean (Glycine soja).PLANT SYSTEMATICS AND EVOLUTION,300(5),1079-1087.
MLA	Wang, Ke-Jing,et al."The possible origin of thick stem in Chinese wild soybean (Glycine soja)".PLANT SYSTEMATICS AND EVOLUTION 300.5(2014):1079-1087.