MS1 — Asparagus officinalis

Summary

AoMS1 (MS1, DUET, MMD1) on asparagus chromosome 3 encodes a PHD finger protein MALE STERILITY 1-like ubiquitin domain-containing protein that binds DNA, histones, and euchromatin and acts as a transcription factor. The gene is associated with male meiosis chromosome segregation, meiotic spindle organization, anther wall tapetum morphogenesis, pollen wall assembly, microgametogenesis, pollen sperm cell differentiation, and pollen germination. It is linked to brassinosteroid response, positive regulation of gene expression, and upregulation of programmed cell death and chromosome condensation. Phenotypic associations include male sterility, pollen development and viability, tapetal programmed cell death, anther development, flower fertility, meiotic chromosome condensation, and senescence. Related genes in other species are linked to tapetum development, fruit ripening, and bacterial wilt resistance.