The DOI matches its Crossref record; 44 of the 44 references it cites were found in a registry or an index.
Genome-wide association study for flowering time, maturity dates and plant height in early maturing soybean (Glycine max) germplasm
Open accessAbstract
BACKGROUND: Soybean (Glycine max) is a photoperiod-sensitive and self-pollinated species. Days to flowering (DTF) and maturity (DTM), duration of flowering-to-maturity (DFTM) and plant height (PH) are crucial for soybean adaptability and yield. To dissect the genetic architecture of these agronomically important traits, a population consisting of 309 early maturity soybean germplasm accessions was genotyped with the Illumina Infinium SoySNP50K BeadChip and phenotyped in multiple environments. A genome-wide association study (GWAS) was conducted using a mixed linear model that involves both relative kinship and population structure. RESULTS: The linkage disequilibrium (LD) decayed slowly in soybean, and a substantial difference in LD pattern was observed between euchromatic and heterochromatic regions. A total of 27, 6, 18 and 27 loci for DTF, DTM, DFTM and PH were detected via GWAS, respectively. The Dt1 gene was identified in the locus strongly associated with both DTM and PH. Ten candidate genes homologous to Arabidopsis flowering genes were identified near the peak single nucleotide polymorphisms (SNPs) associated with DTF. Four of them encode MADS-domain containing proteins. Additionally, a pectin lyase-like gene was also identified in a major-effect locus for PH where LD decayed rapidly. CONCLUSIONS: This study identified multiple new loci and refined chromosomal regions of known loci associated with DTF, DTM, DFTM and/or PH in soybean. It demonstrates that GWAS is powerful in dissecting complex traits and identifying candidate genes although LD decayed slowly in soybean. The loci and trait-associated SNPs identified in this study can be used for soybean genetic improvement, especially the major-effect loci associated with PH could be used to improve soybean yield potential. The candidate genes may serve as promising targets for studies of molecular mechanisms underlying the related traits in soybean.
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Cites
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Genome-wide association studies of 14 agronomic traits in rice landraces
Huang, X., Wei, X., Sang, T., Zhao, Q., Feng, Q., Zhao, Y., Li, C., Zhu, C., Lu, T., Zhang, Z., et al. (2010) · Nature Genetics · doi:10.1038/ng.695 · Cited by 2,148
Mixed linear model approach adapted for genome-wide association studies
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CONSTANS mediates between the circadian clock and the control of flowering in Arabidopsis
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Structure of linkage disequilibrium and phenotypic associations in the maize genome
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Metadata
- Authors
- Zhang, J., Song, Q., Cregan, P. B., Nelson, R. L., Wang, X., Wu, J., & Jiang, G.-L.
- Venue
- BMC Genomics
- Published
- 2015-03-20
- Volume
- 16
- Issue
- 1
- Pages
- 217-217
- ISSN
- 1471-2164 (ISSN-L)
- OpenAlex
- W2078552577
- Cited by
- 276
- References
- 44
- FWCI
- 30.00
- Type
- journal article
- Language
- en
- Open access
- gold
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- Zhang, J., Song, Q., Cregan, P. B., Nelson, R. L., Wang, X., Wu, J., & Jiang, G.-L. (2015). Genome-wide association study for flowering time, maturity dates and plant height in early maturing soybean (Glycine max) germplasm. BMC Genomics. https://doi.org/10.1186/s12864-015-1441-4
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