Expansion and evolutionary patterns of cysteine-rich peptides in plants.

ABSTRACT:

Background

Cysteine-rich peptides (CRPs) are gaining recognition as regulators of cell-cell communication in plants.

Results

We identified 9556 CRPs in 12 plant species and analysed their evolutionary patterns. In most angiosperm plants, whole genome duplication and segmental duplication are the major factors driving the expansion of CRP family member genes, especially signal peptides. About 30% of the CRP genes were found clustered on the chromosomes, except in maize (Zea mays). Considerable collinearities between CRP genes between or within species reveal several syntenic regions on the chromosomes. Different subfamilies display diverse evolutionary rates, suggesting that these subfamilies are subjected to different selective pressures. CRPs in different duplication models

SUBMITTER: Liu X 

PROVIDER: S-EPMC5557327 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature