Loss of starch synthase IIa alleviates the negative impact of high temperature on rice starch during grain filling
Shumpei Hashimoto, Ryo Matsushima, Naoko F. Oitome, Yuko Hosaka, Satoko Miura, Naoko Crofts, Toshio Yamamoto, Naoko Fujita
This study shows that the ss2a mutation in rice increases short amylopectin chains, counteracting high-temperature-induced long-chain increases and maintaining starch quality.
bioRxiv · Sep 29, 2026 · PreprintPlant Biology