The evolution, variation, and expression patterns under development and stress responses of the NAC gene family in the barley pan-genome.

ABSTRACT: The NAC transcription factor family is pivotal in regulating plant development and stress responses, yet its diversity and evolutionary dynamics in barley (Hordeum vulgare) remain underexplored. In this study, we performed a comprehensive pan-genome analysis to identify and characterize the HvNACs across 20 barley accessions. A ranging from 127 to 149 HvNACs were identified in each genome, in which the Morex genome harbored the highest count. These HvNACs were classified into 201 orthogroups, further stratified into core (102), soft-core (18), shell (25), and lineage-specific (56) categories. Phylogenetic analysis delineated them into 12 subfamilies, of which the core genes have undergone strong purifying selection, by contrast, the shell and lineage-specific ge

SUBMITTER: Liu X 

PROVIDER: S-EPMC12367700 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature