Fertility restorer gene <i>CaRf</i> and PepperSNP50K provide a promising breeding system for hybrid pepper.

ABSTRACT: Cytoplasmic male sterility (CMS) is pivotal in plant breeding and widely employed in various crop hybrids, including pepper. However, the functional validation of the restorer of fertility (Rf) gene in pepper has been lacking until now. This study identifies and characterizes CaRf, a single dominant locus crucial for restoring CMS in the pepper strong recovery inbred line Zhangshugang. The CaRf gene encodes a mitochondria-targeted pentatricopeptide repeat protein, validated through the induction of male sterility upon its silencing in hybrid F₁ plants. To enhance pepper breeding efficiency, 176 important pepper breeding parent materials were resequenced, and a PepperSNP50K liquid-phase breeding chip was developed, comprising 51 172 markers. Integration of

SUBMITTER: Tang B 

PROVIDER: S-EPMC11480663 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature