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Article Abstract
Soybean () is an important oil crop, but the regulatory mechanisms underlying seed oil accumulation remain unclear. We identified a member of the transcription factor family, , that is involved in regulating soybean oil content and nodulation. Overexpression of in soybean hairy roots increased the expression of genes involved in glycolysis and de novo lipogenesis, the proportion of palmitic acid (16:0), and the number of root nodules. The effect of in increasing the number of root nodules via regulating the proportion of palmitic acid was confirmed in a recombinant inbred line (RIL) population. shows abundant sequence diversity and has likely undergone artificial selection during domestication. An association analysis revealed a correlation between seed oil content and five linked natural variations (Hap1/Hap2) in the promoter region. Natural variations in the promoter were strongly associated with the transcript level, with higher transcript levels in lines carrying than in those carrying . The effects of alleles on seed oil content were confirmed in natural and RIL populations. We identified a favourable allele that can be used to breed new varieties with increased seed oil content and nodulation.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9694093 | PMC |
| http://dx.doi.org/10.3390/ijms232213793 | DOI Listing |
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