Genome re-sequencing of two accessions and fine mapping the locus of lobed leaflet margins in mungbean
文献类型： 外文期刊
作者： Jiao, Keyuan 1 ; Li, Xin 2 ; Guo, Wuxiu 1 ; Yuan, Xingxing 2 ; Cui, Xiaoyan 3 ; Chen, Xin 3 ;
作者机构： 1.Sun Yat Sen Univ, Sch Life Sci, Guangdong Key Lab Plant Resources, Guangzhou, Guangdong, Peoples R China
2.Nanjing Agr Univ, Lab Ctr Life Sci, Coll Life Sci, Nanjing 210095, Jiangsu, Peoples R China
3.Jiangsu Acad Agr Sci, Inst Vegetable Crops, Nanjing 210014, Peoples R China
关键词： Mungbean;lma;Genome re-sequencing;SNP;InDel;Synteny
期刊名称：MOLECULAR BREEDING （ 影响因子：2.589； 五年影响因子：2.75 ）
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收录情况： SCI
摘要： Mungbean (Vigna radiata L.) is a fast-growing warm-season legume crop widely distributed in Asia. A large amount of self-shading of mungbean plants could reduce its seed yield. Thus, modification of the leaflet type could affect the leaf canopy and improve yield. In this study, a classical locus, lobed leaflet margins (lma) in mungbean, was investigated, which was controlled by a semi-dominant allele. In order to map the lma, the whole genomes of AL127 carrying lma and another accession Sulu with oval leaflets were re-sequenced; 236,998 single nucleotide polymorphisms and 8896 insertion/deletions (InDels) were identified between the two accessions. Using the validated InDels and SNP markers, lma was mapped to a syntenic region about 376 kb on chromosome 3 in mungbean and on chromosome 1 in common bean, respectively. Our results provided a framework for map-based gene cloning in mungbean. Cloning the lma should shed light on the underlying molecular mechanism controlling leaf shape in legumes and further provide the molecular basis for genetic improvement on legume crops.
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