%A NIU Na, LIU Zhen, HUANG Peng-Xiang, ZHU Jin-Yong, LI Zhi-Tao, MA Wen-Jing, ZHANG Jun-Lian, BAI Jiang-Ping, LIU Yu-Hui %T Genome-wide identification and expression analysis of potato GAUT gene family %0 Journal Article %D 2021 %J Acta Agronomica Sinica %R 10.3724/SP.J.1006.2021.04268 %P 2348-2361 %V 47 %N 12 %U {https://zwxb.chinacrops.org/CN/abstract/article_7224.shtml} %8 2021-12-12 %X

Galacturonyltransferases (GAUTs) are enzymes responsible for catalyzing glycosylation reactions and play an important role in the growth and development of plant. In this study, GAUT genes family members in potato (StGAUT) were identified, and their physical and chemical characteristics, distribution on chromosomes, gene structure, conserved motifs, gene duplication events, and expression patterns were analyzed. The results showed that a total of 41 StGAUTs were identified and distributed extensively and unevenly on 10 chromosomes. According to their structural and phylogenetic protein features, these 41 StGAUT genes were divided into four subclasses. Collinearity analysis indicated that 12 pairs of StGAUTs were segmental duplication genes, and these gene pairs evolved under purifying selection. RNA-seq data of different tissues and abiotic stresses were used to analyze tissue-specific and abiotic stress-responses of the StGAUT genes in doubled monoploid potato (DM). Results revealed that StGAUT genes might be involved in anthocyanin biosynthesis in three different-colored potato cultivars based on RNA-seq data. The results provide valuable information regarding further functional elucidation of StGAUT genes in potato.