Dissecting four correlated growth period traits using a genome-wide association study approach in soybean

文献类型： 外文期刊

第一作者： Li, Yanfei

作者： Li, Yanfei;Li, Ying-hui;Hong, Huilong;Ma, Yansong;Gu, Yongzhe;Liu, Zhangxiong;Qiu, Li-juan;Hong, Huilong;Ma, Yansong;Jackson, Scott A.

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关键词： Genome-wide association study; Soybean; SNPs; Growth period traits; Photoperiod

期刊名称：GENETIC RESOURCES AND CROP EVOLUTION （ 影响因子：1.524； 五年影响因子：1.713 ）

ISSN： 0925-9864

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收录情况： SCI

摘要： Soybean [Glycine max (L.) Merr.] is a short-day, photoperiod-sensitive crop. The vegetative growth period (V), reproductive growth period (R), whole growth period (V + R) and the ratio of growth period structure (R/V) are photoperiod traits critical to adaptability and yield in soybean. To thoroughly dissect the genetic basis of these growth period traits and their correlations, a panel of 277 soybean accessions were genotyped with a single nucleotide polymorphisms (SNPs) panel and phenotyped at three field environments over three years. A genome-wide association study found 28 SNPs on fifteen chromosomes with 33 significant marker-trait associations, eleven, eight, four and ten for V, R, V + R and R/V, respectively. Two SNPs, Map-6077 and -6502, showed pleiotropy in three and two traits, respectively. Map-6077, associated with V, R, and V + R, was a synonymous SNP of the GmMFT, a member of PEBP family that has been reported to inhibit seed germination and regulate oil content. These results provide candidate SNP markers and genes for further functional experiments to advance molecular marker-assisted breeding.

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