Article
A point mutation in the rice alpha-tubulin gene OsTUBA3 causes grain notching.
The New phytologist - 1 Nov 2023
Xu Chenshan, Chen Bingtang, Huang Shanjin, Deng Zhuyun, Wang Tai
Abstract excerpt
Grain notching is a common deformation that decreases rice (Oryza sativa) quality; however, the underlying molecular basis causing grain notching remains unclear. We report mechanisms underlying grain notching in Small and notched grain (Sng) mutants, which contained an arginine to histidine substitution at amino acid position 422 (R422H) of the α-tubulin protein OsTUBA3. The R422H mutation decreased cell length...
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