Genome-wide search and structural and functional analyses for late embryogenesis-abundant (LEA) gene family in poplar.

ABSTRACT:

Background

The Late Embryogenesis-Abundant (LEA) gene families, which play significant roles in regulation of tolerance to abiotic stresses, widely exist in higher plants. Poplar is a tree species that has important ecological and economic values. But systematic studies on the gene family have not been reported yet in poplar.

Results

On the basis of genome-wide search, we identified 88 LEA genes from Populus trichocarpa and renamed them as PtrLEA. The PtrLEA genes have fewer introns, and their promoters contain more cis-regulatory elements related to abiotic stress tolerance. Our results from comparative genomics indicated that the PtrLEA genes are conserved and homologous to related genes in other species, such as Eucalyptus robusta, Solanum lycopersicum and Arabidopsis. Us

SUBMITTER: Cheng Z 

PROVIDER: S-EPMC7903804 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature