A Novel Combination of Genes Causing Temperature-Sensitive Hybrid Weakness in Rice.

ABSTRACT: Reproductive isolation is an obstacle for plant breeding when a distant cross is demanded. It can be divided into two main types based on different growth stages: prezygotic isolation and postzygotic isolation. The hybrid weakness, which is a type of postzygotic isolation, can become a problem in crop breeding. In order to overcome reproductive isolation, it is necessary to elucidate its mechanism. In this study, genetic analysis for low temperature-dependent hybrid weakness was conducted in a rice F₂ population derived from Taichung 65 (T65, Japonica) and Lijiangxintuanheigu (LTH, Japonica). The weak and severe weak plants in F₂ showed shorter culm length, late heading, reduced panicle number, decreased grain numbers per panicle, and impaired root development in the

SUBMITTER: Than Kutay Soe 

PROVIDER: S-EPMC9274174 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature