Genome-Wide Identification and Expression of the <i>ERF</i> Gene Family in <i>Populus trichocarpa</i> and Their Responses to Nitrogen and Abiotic Stresses.

ABSTRACT: The ethylene response factor (ERF) family is a prominent plant-specific transcription factor family, which plays a crucial role in modulating plant growth and stress tolerance. In this study, a total of 210 ERFs were identified in Populus trichocarpa, comprising 29 AP2 (APETALA2) subfamily members, 176 ERF subfamily members, and 5 RAV (related to ABI3/VP1) subfamily members. The duplication events of the PtERF family members exclusively occurred within the subfamilies. A total of 168 duplication pairs were found among 161 PtERF genes, and all of them were fragment duplications. Gene structure analysis revealed that most ERF subfamily members only had one exon without introns, the AP2 subfamily members had six or more introns and exons, and RAV subfamily members

SUBMITTER: Li M 

PROVIDER: S-EPMC12029025 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature