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Acta Horticulturae Sinica ›› 2022, Vol. 49 ›› Issue (4): 778-790.doi: 10.16420/j.issn.0513-353x.2021-0347

• Research Papers • Previous Articles     Next Articles

Development and Application of Insertion-Deletion(InDel)Markers in Asparagus Bean Based on Whole Genome Re-sequencing Data

YANG Yi1, LI Tingyao1, LI Guojing2, CHEN Hancai1, SHEN Zhuo1, ZHOU Xuan1, WU Zengxiang1, WU Xinyi2, ZHANG Yan1,*()   

  1. 1. Guangdong Key Laboratory for New Technology Research of Vegetables,Vegetable Research Institute,Guangdong Academy of Agricultural Sciences,Guangzhou 510640,China
    2. Vegetable Research Institute,Zhejiang Academy of Agricultural Sciences,Hangzhou 310021,China
  • Received:2021-11-01 Revised:2022-01-18 Online:2022-04-25 Published:2022-04-24
  • Contact: ZHANG Yan E-mail:893251473@qq.com

Abstract:

Based on resequencing data on three asparagus bean accessions,a set of InDel markers were developed and validated. Nine hundred and eight-one highly polymorphic InDel loci were screened out with insert or deletion bases longer than 30 bp suitable for PAGE gel electrophoresis detection. Among them,165 markers with uniform distribution across the genome were selected and checked in six asparagus bean inbreed lines. The results showed that 162 primer pairs yielded 673 amplification bands,and 85 primer pairs exhibited polymorphism yielded 333 polymorphic bands,accounted for 49.48% in the total amplification bands. These 85 polymorphic InDel markers were further used for genetic diversity analyzing in 173 asparagus bean accessions,and a total of 333 loci were generated. The polymorphism information content(PIC)value ranged from 0.01 to 0.37,with an average value of 0.29,while the gene diversity index value ranged from 0.01 to 0.50,with an average value of 0.36,indicating a relatively narrowed genetic diversity among these accessions. Population structure analysis revealed that there are two groups existed in these accessions. Further,these markers helped to identified five real hybrids from six hybrid combinations. Taken together,the polymorphic InDel markers developed in this study can be widely used for asparagus bean genetic analysis and molecular marker assisted selection breeding.

Key words: asparagus bean, InDel marker, genetic diversity analysis, F1 identification

CLC Number: