Comprehensive analysis of NAC transcription factors uncovers their roles during fiber development and stress response in cotton.

ABSTRACT:

Background

Transcription factors operate as important switches of transcription networks, and NAC (NAM, ATAF, and CUC) transcription factors are a plant-specific family involved in multiple biological processes. However, this gene family has not been systematically characterized in cotton.

Results

Here we identify a large number of genes with conservative NAC domains in four cotton species, with 147 found in Gossypium arboreum, 149 in G. raimondii, 267 in G. barbadense and 283 in G. hirsutum. Predicted membrane-bound NAC genes were also identified. Phylogenetic analysis showed that cotton NAC proteins clustered into seven subfamilies and homologous protein pairs showed similar characteristics. Evolutionary property analysis revealed that purifying selection of NAC genes occu

SUBMITTER: Sun H 

PROVIDER: S-EPMC6057059 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature