AUTHOR=Wu Aimin , Hao Pengbo , Wei Hengling , Sun Huiru , Cheng Shuaishuai , Chen Pengyun , Ma Qiang , Gu Lijiao , Zhang Meng , Wang Hantao , Yu Shuxun 

TITLE=Genome-Wide Identification and Characterization of Glycosyltransferase Family 47 in Cotton

JOURNAL=Frontiers in Genetics

VOLUME=10

YEAR=2019

URL=https://www.frontiersin.org/journals/genetics/articles/10.3389/fgene.2019.00824

DOI=10.3389/fgene.2019.00824

ISSN=1664-8021

ABSTRACT=<p>The glycosyltransferase (GT) 47 family is involved in the biosynthesis of xylose, pectin and xyloglucan and plays a significant role in maintaining the normal morphology of the plant cell wall. However, the functions of GT47s are less well known in cotton. In the present study, a total of 53, 53, 105 and 109 GT47 genes were detected by genome-wide identification in <italic>Gossypium arboreum</italic>, <italic>G. raimondii</italic>, <italic>G. hirsutum</italic> and <italic>G. barbadense</italic>, respectively. All the GT47s were classified into six major groups <italic>via</italic> phylogenetic analysis. The exon/intron structure and protein motifs indicated that each branch of the GT47 genes was highly conserved. Collinearity analysis showed that GT47 gene family expansion occurred in <italic>Gossypium spp</italic>. mainly through whole-genome duplication and that segmental duplication mainly promoted GT47 gene expansion within the A and D subgenomes. The Ka/Ks values suggested that the GT47 gene family has undergone purifying selection during the long-term evolutionary process. Transcriptomic data and qRT-PCR showed that GhGT47 genes exhibited different expression patterns in each tissue and during fiber development. Our results suggest that some genes in the GhGT47 family might be associated with fiber development and the abiotic stress response, which could promote further research involving functional analysis of GT47 genes in cotton.</p>