Genetic characterization and gene flow in different geographical-distance neighbouring natural populations of wild soybean (Glycine soja Sieb. & Zucc.) and implications for protection from GM soybeans

doi:10.1007/s10681-012-0621-4

CORC > 中国农业科学院 > 作物科学研究所

	Genetic characterization and gene flow in different geographical-distance neighbouring natural populations of wild soybean (Glycine soja Sieb. & Zucc.) and implications for protection from GM soybeans
	Wang, Ke-Jing; Li, Xiang-Hua
刊名	EUPHYTICA
	2012
卷号	186 期号:3 页码:817-830
关键词	Gene flow Genetic structure Genetic diversity Conservation Wild soybean
ISSN号	0014-2336
DOI	10.1007/s10681-012-0621-4
通讯作者	Wang, Ke-Jing
英文摘要	To design appropriate strategies for ex situ and in situ conservation of wild soybean and safeguard the biosafety of the wild soybean gene pool when genetically modified soybeans are grown, it is important to understand its genetic characteristics, and to quantify gene flow and kinship within and between neighboring populations. We analyzed 9 pairs of neighboring populations of wild soybeans using 20 pairs of nuclear SSR markers. Results showed that Chinese wild soybean natural populations had outcrossing rates of 0-3.5% and that most populations contained many kinship families. The kinship families could be attributed to the accumulation of outcrossed offspring within populations during the history of population colonization. Wild soybean is very sensitive to environmental selection, which results in genetic differentiation of populations, and the emergence of specific alleles. We used an index tau to explain why genetic differences would exist between the pairwise populations; the interpopulation genetic differentiation chiefly consisted in the differences of allele frequencies over the genome. We found long-distance dispersal (1.5 km) of wild soybean seeds in a land ecosystem. There was close correlation between genetic and geographical distance among natural populations of Chinese wild soybean. Within a distance of 50 km, there was greater gene flow when the distance between populations was shorter. These findings have implications for ex situ and in situ conservation in an ecogeographical region, and also for protection of the gene pool from contamination by GM soybeans in wild soybean species.
学科主题	Agronomy ; Plant Sciences ; Horticulture ; AGRONOMY ; HORTICULTURE ; PLANT SCIENCES
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000306930600022
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5141]
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. Genetic characterization and gene flow in different geographical-distance neighbouring natural populations of wild soybean (Glycine soja Sieb. & Zucc.) and implications for protection from GM soybeans[J]. EUPHYTICA,2012,186(3):817-830.
APA	Wang, Ke-Jing,&Li, Xiang-Hua.(2012).Genetic characterization and gene flow in different geographical-distance neighbouring natural populations of wild soybean (Glycine soja Sieb. & Zucc.) and implications for protection from GM soybeans.EUPHYTICA,186(3),817-830.
MLA	Wang, Ke-Jing,et al."Genetic characterization and gene flow in different geographical-distance neighbouring natural populations of wild soybean (Glycine soja Sieb. & Zucc.) and implications for protection from GM soybeans".EUPHYTICA 186.3(2012):817-830.