New insights into the evolution and functional divergence of the SWEET family in Saccharum based on comparative genomics.

ABSTRACT:

Background

The SWEET (Sugars Will Eventually be Exported Transporters) gene family is a recently identified group of sugar transporters that play an indispensable role in sugar efflux, phloem loading, plant-pathogen interaction, nectar secretion, and reproductive tissue development. However, little information on Saccharum SWEET is available for this crop with a complex genetic background.

Results

In this study, 22 SWEET genes were identified from Saccharum spontaneum Bacterial Artificial Chromosome libraries sequences. Phylogenetic analyses of SWEETs from 11 representative plant species showed that gene expansions of the SWEET family were mainly caused by the recent gene duplication in dicot plants, while these gene expansions were attributed to the ancient whole genome dup

SUBMITTER: Hu W 

PROVIDER: S-EPMC6222987 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature