Characterisation of the <i>ARF</i> Gene Family in Salicaceae and Functional Analysis of <i>PeARF18</i> in Heteromorphic Leaf Development of <i>Populus euphratica</i>.

ABSTRACT: Auxin plays a crucial role in plant growth and development via concentration gradient regulation, with auxin response factors (ARFs) as key transcription factors in its signalling pathway. However, comprehensive identification and characterisation of ARF genes in Salicaceae remain limited. This study performed a genome-wide analysis of ARF genes in three Salicaceae species (Populus euphratica Oliv., Populus pruinosa, and Salix sinopurpurea), aiming to clarify their physicochemical properties, evolutionary relationships, and functional relevance. A total of 34 ARF genes were identified in each species, all being nucleus-localised hydrophilic unstable proteins clustered into six phylogenetic subgroups. Their promoters contain numerous cis-acti

SUBMITTER: Song T 

PROVIDER: S-EPMC12785610 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature