Environment-sensitive GMS includes:
Environment-sensitive genic male sterility category includes conditional nuclear sterility reversible by external cues, divided into thermo-sensitive GMS TGMS where sterile to fertile transition governed by temperature threshold during young panicle stage, and photoperiod-sensitive PGMS governed by day length threshold perceived via phytochrome signaling. Some lines respond to both termed PTGMS. Examples: rice TGMS line Annong S-1 becomes sterile above 24C, fertile below, while NK58S PGMS sterile under long days greater than 13.5 h fertile under short days. Genes identified include pms3 encodi
Ref: Yuan Longping Two-line hybrid rice concept; Frontiers Plant Sci EGMS overview 2023; PubMed molecular TGMS PGMS.
