RNase ZS1-mediated UbL40 mRNA decay controls thermo-sensitive genic male sterility in hybrid rice

ABSTRACT: Male sterility is an important trait in hybrid crop breeding. Thermo-sensitive genic male sterility (TGMS) lines, which are male-sterile at restrictive (high) temperatures but convert to male-fertile at permissive (low) temperatures, have been widely utilized in two-line hybrid rice breeding. However, the molecular mechanism underlying TGMS remains unclear. Here we show that the rice (Oryza sativa L.) thermo-sensitive genic male sterile gene 5 (tms5) locus, which in 2010 was present in cultivars occupying more than 80% (2.6 million hectares) of two-line hybrid rice-growing land in China, confers the TGMS trait through a loss-of-function mutation of RNase ZS1, resulting in failure to mediate mRNA decay of three temperature-responsive ubiquitin fusion ribosomal protein L40 genes (UbL40) gene

ORGANISM(S): Oryza sativa Japonica Group

SUBMITTER: Hai Zhou 

PROVIDER: E-GEOD-42467 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress