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A single origin and moderate bottleneck during domestication of soybean (Glycine max): implications from microsatellites and nucleotide sequences

文献类型:期刊论文

作者Guo, Juan2; Wang, Ying2; Huang, Hongwen2; Qiu, Lijuan1; Zhou, Jianfeng2; Song, Chi2; Wang, Yunsheng2
刊名ANNALS OF BOTANY
出版日期2010-09-01
卷号106期号:3页码:505-514
关键词Wild soybean Glycine soja cultivated soybean G. max microsatellite nucleotide sequence domestication origin domestication bottleneck
ISSN号0305-7364
DOI10.1093/aob/mcq125
英文摘要Background and Aims It is essential to illuminate the evolutionary history of crop domestication in order to understand further the origin and development of modern cultivation and agronomy; however, despite being one of the most important crops, the domestication origin and bottleneck of soybean (Glycine max) are poorly understood. In the present study, microsatellites and nucleotide sequences were employed to elucidate the domestication genetics of soybean. Methods The genomes of 79 landrace soybeans (endemic cultivated soybeans) and 231 wild soybeans (G. soja) that represented the species-wide distribution of wild soybean in East Asia were scanned with 56 microsatellites to identify the genetic structure and domestication origin of soybean. To understand better the domestication bottleneck, four nucleotide sequences were selected to simulate the domestication bottleneck. Key Results Model-based analysis revealed that most of the landrace genotypes were assigned to the inferred wild soybean cluster of south China, South Korea and Japan. Phylogeny for wild and landrace soybeans showed that all landrace soybeans formed a single cluster supporting a monophyletic origin of all the cultivars. The populations of the nearest branches which were basal to the cultivar lineage were wild soybeans from south China. The coalescent simulation detected a bottleneck severity of K' = 2 during soybean domestication, which could be explained by a foundation population of 6000 individuals if domestication duration lasted 3000 years. Conclusions As a result of integrating geographic distribution with microsatellite genotype assignment and phylogeny between landrace and wild soybeans, a single origin of soybean in south China is proposed. The coalescent simulation revealed a moderate genetic bottleneck with an effective wild soybean population used for domestication estimated to be approximate to 2% of the total number of ancestral wild soybeans. Wild soybeans in Asia, especially in south China contain tremendous genetic resources for cultivar improvement.
资助项目National Natural Science Foundation of China[30670158] ; CAS/CAFEA[0921101001] ; Chinese Academy of Sciences
WOS研究方向Plant Sciences
语种英语
WOS记录号WOS:000281733900013
出版者OXFORD UNIV PRESS
源URL[http://202.127.146.157/handle/2RYDP1HH/926]  
专题中国科学院武汉植物园
通讯作者Huang, Hongwen
作者单位1.Chinese Acad Agr Sci, Natl Key Facil Crop Gene Resources & Genet Improv, NFCRI Key Lab Germplasm & Biotechnol MOA, Inst Crop Sci, Beijing 10081, Peoples R China
2.Chinese Acad Sci, Key Lab Plant Germplasm Enhancement & Special Agr, Wuhan Bot Garden, Wuhan 430074, Hunan, Peoples R China
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Guo, Juan,Wang, Ying,Huang, Hongwen,et al. A single origin and moderate bottleneck during domestication of soybean (Glycine max): implications from microsatellites and nucleotide sequences[J]. ANNALS OF BOTANY,2010,106(3):505-514.
APA Guo, Juan.,Wang, Ying.,Huang, Hongwen.,Qiu, Lijuan.,Zhou, Jianfeng.,...&Wang, Yunsheng.(2010).A single origin and moderate bottleneck during domestication of soybean (Glycine max): implications from microsatellites and nucleotide sequences.ANNALS OF BOTANY,106(3),505-514.
MLA Guo, Juan,et al."A single origin and moderate bottleneck during domestication of soybean (Glycine max): implications from microsatellites and nucleotide sequences".ANNALS OF BOTANY 106.3(2010):505-514.

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来源:武汉植物园

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