Expanding the repertoire of secretory peptides controlling root development with comparative genome analysis and functional assays.

ABSTRACT: Plant genomes encode numerous small secretory peptides (SSPs) whose functions have yet to be explored. Based on structural features that characterize SSP families known to take part in postembryonic development, this comparative genome analysis resulted in the identification of genes coding for oligopeptides potentially involved in cell-to-cell communication. Because genome annotation based on short sequence homology is difficult, the criteria for the de novo identification and aggregation of conserved SSP sequences were first benchmarked across five reference plant species. The resulting gene families were then extended to 32 genome sequences, including major crops. The global phylogenetic pattern common to the functionally characterized SSP families suggests that their apparition and exp

SUBMITTER: Ghorbani S 

PROVIDER: S-EPMC4526923 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature