The monosaccharide transporter gene family in land plants is ancient and shows differential subfamily expression and expansion across lineages.

ABSTRACT:

Background

In plants, tandem, segmental and whole-genome duplications are prevalent, resulting in large numbers of duplicate loci. Recent studies suggest that duplicate genes diverge predominantly through the partitioning of expression and that breadth of gene expression is related to the rate of gene duplication and protein sequence evolution.Here, we utilize expressed sequence tag (EST) data to study gene duplication and expression patterns in the monosaccharide transporter (MST) gene family across the land plants. In Arabidopsis, there are 53 MST genes that form seven distinct subfamilies. We created profile hidden Markov models of each subfamily and searched EST databases representing diverse land plant lineages to address the following questions: 1) Are homologs of each Arabid

SUBMITTER: Johnson DA 

PROVIDER: S-EPMC1578591 | biostudies-literature | 2006 Aug

REPOSITORIES: biostudies-literature