A novel QTL associated with tolerance to cold-induced seed cracking in the soybean cultivar Toyomizuki.

ABSTRACT: Low temperatures after flowering cause seed cracking (SC) in soybean. Previously, we reported that proanthocyanidin accumulation on the dorsal side of the seed coat, controlled by the I locus, may lead to cracked seeds; and that homozygous IcIc alleles at the I locus confer SC tolerance in the line Toiku 248. To discover new genes related to SC tolerance, we evaluated the physical and genetic mechanisms of SC tolerance in the cultivar Toyomizuki (genotype II). Histological and texture analyses of the seed coat revealed that the ability to maintain hardness and flexibility under low temperature, regardless of proanthocyanidin accumulation in the dorsal seed coat, contributes to SC tolerance in Toyomizuki. This indicated that the SC tolerance mechanism differed be

SUBMITTER: Yamaguchi N 

PROVIDER: S-EPMC10316309 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature