Genome-wide identification of the oligopeptide transporter gene family in poplar and their responses to iron and cadmium.

ABSTRACT:

Backgrounds

The oligopeptide transporter (OPT) family belongs to a type of proton-coupled symporter and functions in the transport of metal ions, glutathione, phytochelatins (PCs), and metal-PC complexes, as well as in the regulation of metal homeostasis. Polplar, a fast-growing woody model species which has been resequenced multiple times, shows great potential in phytoremediation. However, the identification of OPT family genes and their responses to cadmium (Cd) and iron (Fe) remain poorly understood.

Results

This study identified 30 OPT genes (17 yellow stripe-like (YSL) subfamily members and 13 OPT subfamily members) in Populus trichocarpa, and most PtOPT proteins were localized to the plasma membrane and tonoplast. Twelve gene duplication events were detected among the

SUBMITTER: Fu R 

PROVIDER: S-EPMC12831333 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature