Acta Horticulturae Sinica ›› 2022, Vol. 49 ›› Issue (2): 332-340.doi: 10.16420/j.issn.0513-353x.2021-0056

• Research Papers • Previous Articles     Next Articles

Genome-wide Association Studies for Flower Color in Common Bean

LU Tiantian, LIU Zhiyuan, XU Zhaosheng, ZHANG Helong, LI Guoliang, SHE Hongbing, QIAN Wei()   

  1. Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,China
  • Received:2021-04-16 Revised:2021-11-18 Online:2022-02-25 Published:2022-02-28


Flower color of 124 common beans investigated in 2019 and 2020 was used to identify its controlling genes by Genome-wide association study(GWAS). The phenotypic data showed that the flower color between the two years had a relatively high similarity besides one individual. We obtained 517.58 Gb(~10×)of raw data by resequencing 124 common bean individuals. A total of 5 130 030 SNP were generated against the common bean reference genome,and 3 701 584 SNP were retained by filtering. GWAS analysis based on these high-quality SNPs with compress mixed linear model(cMLM)located flower color regulatory gene in the 322.67 kb region on chromosome 6. Within the region,eight genes were annotated based on the common bean reference genome. Particularly,Phvul.006G020200 was the MYB transcription factor of anthocyanin regulation and had differential expression in flower color. Thus,we assume that Phvul.006G020200 is a key candidate gene for regulating bean flower color.

Key words: common bean, GWAS, flower color, expressions

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