The pectin lyases in Arabidopsis thaliana: evolution, selection and expression profiles.

ABSTRACT: Pectin lyases are a group of enzymes that are thought to contribute to many biological processes, such as the degradation of pectin. However, until this study, no comprehensive study incorporating phylogeny, chromosomal location, gene duplication, gene organization, functional divergence, adaptive evolution, expression profiling and functional networks has been reported for Arabidopsis. Sixty-seven pectin lyase genes have been identified, and most of them possess signal sequences targeting the secretory pathway. Phylogenetic analyses identified five gene groups with considerable conservation among groups. Pectin lyase genes were non-randomly distributed across chromosomes and clustering was evident. Functional divergence and adaptive evolution analyses suggested that purifying selection wa

SUBMITTER: Cao J 

PROVIDER: S-EPMC3467278 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature