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

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 thorough...

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Published inGenetic resources and crop evolution Vol. 69; no. 3; pp. 1147 - 1162
Main Authors Li, Yanfei, Li, Ying-hui, Hong, Huilong, Ma, Yansong, Gu, Yongzhe, Liu, Zhangxiong, Jackson, Scott A., Qiu, Li-juan
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.03.2022
Springer Nature B.V
Subjects
Adaptability
Agriculture
Biomedical and Life Sciences
Chromosomes
Genome-wide association studies
Genomes
Germination
Glycine max
Life Sciences
Markers
Nucleotides
Plant Genetics and Genomics
Plant Physiology
Plant Sciences
Plant Systematics/Taxonomy/Biogeography
Pleiotropy
Research Article
Seed germination
Single-nucleotide polymorphism
Soybeans
SNPs
Photoperiod
Soybean
Genome-wide association study
Growth period traits
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Summary: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.
ISSN:0925-9864
1573-5109
DOI:10.1007/s10722-021-01293-3