qRf8-1, a Novel QTL for the Fertility Restoration of Maize CMS-C Identified by QTL-seq.

ABSTRACT: C-type cytoplasmic male sterility (CMS-C), one of the three major CMS types in maize, has a promising application prospect in hybrid seed production. However, the complex genetic mechanism underlying the fertility restoration of CMS-C remains poorly understood. The maize inbred line A619 is one of the rare strong restorer lines carrying the restorer gene Rf4, but different fertility segregation ratios are found in several F₂ populations derived from crosses between isocytoplasmic allonucleus CMS-C lines and A619. In the present study, the segregation ratios of fertile to sterile plants in the (CHuangzaosi × A619) F₂ and BC₁F₁ populations (36.77:1 and 2.36:1, respectively) did not follow a typical monogenic model of inheritance, which sugge

SUBMITTER: Zheng M 

PROVIDER: S-EPMC7341123 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature