Characterization of a New qLTG3-1 Allele for Low-temperature Germinability in Rice from the Wild Species Oryza rufipogon.

The O. rufipogon qLTG3-1 allele can be utilized for the improvement of LTG in rice breeding programs. Nearly isogenic lines harboring both qLTG1 and qLTG3-1 alleles from O. rufipogon, showed higher LTG scores than the NILs with qLTG1 or qLTG3-1 alone, and the two QTLs regulate LTG via different pathways. To our knowledge, this is the first report to detect a new qLTG3-1 allele and analyze the interaction of the two LTG QTLs in a nearly isogenic background.