A survey of lineage-specific genes in Triticeae reveals de novo gene evolution from genomic raw material.

ABSTRACT: Diploid plant genomes typically contain ~35,000 genes, almost all belonging to highly conserved gene families. Only a small fraction are lineage-specific, which are found in only one or few closely related species. Little is known about how genes arise de novo in plant genomes and how often this occurs; however, they are believed to be important for plants diversification and adaptation. We developed a pipeline to identify lineage-specific genes in Triticeae, using newly available genome assemblies of wheat, barley, and rye. Applying a set of stringent criteria, we identified 5942 candidate Triticeae-specific genes (TSGs), of which 2337 were validated as protein-coding genes in wheat. Differential gene expression analyses revealed that stress-induced wheat TSGs are strongly e

SUBMITTER: Poretti M 

PROVIDER: S-EPMC10020141 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature