RPAD locus controls prostrate growth habit in Oryza nivara.

ABSTRACT: The development of ideal plant architecture is crucial for optimizing grain yield in crop breeding. The transition from prostrate growth habit in wild rice to erect growth habit in cultivated rice is one of the important events during rice domestication. Here, we identified a yield-related quantitative trait locus (QTL) cluster on the short arm of chromosome 7 using Teqing/W2014 (Oryza nivara) derived BC₃F₆ population. The introgression line TIL81 containing this QTL cluster exhibited significantly larger tiller angle, increased tiller numbers, and prostrate growth habit compared to the recipient parent Teqing. Using a segregating F₂ population derived from a cross between TIL81 and Teqing, this yield-related QTL cluster was mapped to a similar position as

SUBMITTER: Liu Y 

PROVIDER: S-EPMC12018294 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature