Open AccessGenome-wide analysis and comparison of the DNA-binding one zinc finger gene family in diploid and tetraploid cotton (Gossypium)
Author(s) -
Yuzhe Li,
Zhen Liu,
Kai-Yue Zhang,
SenYi Chen,
Mengjie Liu,
QingDe Zhang
Publication year - 2020
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0235317
Subject(s) - gossypium barbadense , gossypium , biology , gene family , gene , genetics , genome , zinc finger , gene duplication , tandem exon duplication , ploidy , segmental duplication , transcription factor
The Dof (DNA-binding one zinc finger) transcription factor family is a representative of plant-specific classes of transcription factors. In this study, we performed a genome-wide screening and characterization of the Dof gene family within two tetraploid species Gossypium barbadense , Gossypium hirsutum , and two diploid species Gossypium arboreum , Gossypium raimondii . 115, 116, 55 and 56 Dof genes were identified respectively and all of the genes contain a sequence encoding the Dof DNA-binding domain. Those genes were unevenly distributed across 13/26 chromosomes of the cotton. Genome comparison revealed that segmental duplication may have played crucial roles in the expansion of the cotton Dof gene family, and tandem duplication also played a minor role. Analysis of RNA-Seq data indicated that cotton Dof gene expression levels varied across different tissues and in response to different abiotic stress. Overall, our results could provide valuable information for better understanding the evolution of cotton Dof genes, and lays a foundation for future investigation in cotton.