OsSPL13 controls grain size in cultivated rice

Abstract

Most japonica varieties are grown in temperate regions, although some are grown in tropical and subtropical regions. [...]japonica varieties can be classified into temperate and tropical ecotypes on the basis of their ecological, morphological and physiological characteristics. Grain weight is controlled by a combination of grain length, grain width and grain thickness. [...]far, several genes for grain length and grain width, such as GW2, qSW5, GS5, GW8, GS3 and GL7/GW7, have been found to regulate grain shape through activation of the cell cycle machinery in promoting cell division10-16.