ACTA AGRICULTURAE BOREALI-SINICA ›› 2019, Vol. 34 ›› Issue (5): 65-73. doi: 10.7668/hbnxb.201751467

Special Issue: Biotechnology

• Crop Genetics·Germplasm Resources·Biotechnology • Previous Articles     Next Articles

Genome-Wide Identification, Classification and Expression Analysis of Sugar Transporter Gene Family in Sorghum bicolor

XU Zhijun1,2, LIU Yang1,2, XU Lei1,2, AN Dongsheng1,2   

  1. 1. Zhanjiang Experiment Station, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524013, China;
    2. Guangdong Engineering Technology Research Center for Dryland Water-saving Agriculture, Zhanjiang 524013, China
  • Received:2019-03-11 Published:2019-10-28

Abstract: The sugar transporter(STP)gene family plays critical roles in monosaccharide distribution and participates in diverse plant metabolic processes. To investigate the potential roles of STPs in sorghum growth and development, the genome-wide identification, classification and expression analyses of the STP gene family were performed in this study. A total of 19 SbSTP genes containing the Sugar_tr conserved motifs were identified from the sorghum genome, which distributed on 9 chromosomes unevenly, and 4 of them located in the genome segmental duplication region. According to their phylogenetic features, the 19 SbSTPs were further classified into 5 main groups, with high similar motif compositions within the same group, but they were different in exon-intron number. The synteny analysis and phylogenetic comparison of STP genes from sorghum, Arabidopsis and rice provided the valuable clues for revealing the evolutionary characteristics of SbSTP genes. RNA-Seq data analysis showed that 18 of the 19 SbSTP genes could expressed in various tissues with distinct expression patterns, among which SbSTP11 exhibited tissue-specific expression in flower, while SbSTP4 and SbSTP5 expressed in root or shoot by induction of ABA and PEG stress. The results provided a valuable resource for better understanding the biological roles and application potentiality of individual STP genes in sorghum.

Key words: Sorghum bicolor, STP, Gene family, Phyletic evolution, Expression analysis

CLC Number: 

Cite this article

XU Zhijun, LIU Yang, XU Lei, AN Dongsheng. Genome-Wide Identification, Classification and Expression Analysis of Sugar Transporter Gene Family in Sorghum bicolor[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2019, 34(5): 65-73. doi: 10.7668/hbnxb.201751467.

share this article