Fig. 8: Proposed model illustrating GmLDL2 in regulating flowering time and improving low-latitude adaptation in soybean.

The GmLDL2H1 allele under natural selection promotes soybean to low latitudes, whereas the GmLDL2H2 allele under artificial selection facilitates soybean to high-latitudes. GmLDL2 regulates flowering time by repressing the expression of GmFER through altering the H3K4 methylation status at this locus.