Multiple fertility restorer loci for cytoplasmic male sterility caused by mitochondrial gene orf137 in tomato.

ABSTRACT: Cytoplasmic male sterility (CMS) in plants is caused by incompatibility between nuclear and cytoplasmic genetic information. Fertility can be restored through the action of fertility restorer (RF) genes, which are usually present in the nucleus. CMS lines of tomato (Solanum lycopersicum) caused by mitochondrial gene orf137 have been developed from asymmetric cell fusions, and in these lines, cultivated tomato served as a nuclear donor and its wild relative, S. acaule, as a cytoplasm donor. Although RF genes are present in wild relatives of tomato, no genetic or genomic information on the RF genes is yet available. This study reports an RF genetic locus, RF1, on chromosome 1 of S. pimpinellifolium LA1670 and S.  lycopersicum var. cerasiforme LA1673, which was revealed by bulked segregant an

SUBMITTER: Iki Y 

PROVIDER: S-EPMC12646146 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature