Transcriptomic analyses reveal regulatory plasticity and metabolic reprogramming underlying genotype-specific microspore embryogenesis in wheat.

ABSTRACT:

Key message

Embryogenic efficiency in wheat microspores is driven by epigenetic regulation, homoeolog expression bias, and genotype-specific genomic variation, with coordinated remodeling of metabolic pathways and cell-wall dynamics establishing a favourable cellular environment. Microspore embryogenesis is a process in which immature male gametophytes are induced to form embryo-like structures that can regenerate into doubled haploid (DH) plants following chromosome doubling. By producing complete homozygosity in a single generation, DH technology accelerates cultivar development and is particularly valuable for breeding resilient crops. However, bread wheat remains largely recalcitrant to microspore embryogenesis, with strong genotype dependence limiting its broad application in

SUBMITTER: Yuan HY 

PROVIDER: S-EPMC12872716 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature