Publications by authors named "Motoyasu Omoteno"
Rice (Oryza sativa L.) can produce black grains as well as white. In black rice, the pericarp of the grain accumulates anthocyanin, which has antioxidant activity and is beneficial to human health.
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- A population of 46 chromosome segment substitution lines (CSSLs) was created to identify quantitative trait loci (QTLs) that could lower cadmium (Cd) content in rice grains by replacing segments from a low-Cd cultivar, LAC23, into the Koshihikari background.
- In field experiments, QTL mapping revealed eight chromosomal regions linked to grain Cd content, with a significant QTL identified on chromosome 3 (qlGCd3) that reduces Cd levels in grains by limiting its transport from shoots.
- The study indicates that the low-Cd trait in LAC23 is governed by multiple QTLs, and qlGCd3 is a key candidate for developing rice varieties with lower Cd levels.