PeerJ (Aug 2019)

Genome-wide identification and expression analysis of the VQ gene family in soybean (Glycine max)

  • Yongbin Wang,
  • Zhenfeng Jiang,
  • Zhenxiang Li,
  • Yuanling Zhao,
  • Weiwei Tan,
  • Zhaojun Liu,
  • Shaobin Cui,
  • Xiaoguang Yu,
  • Jun Ma,
  • Guangjin Wang,
  • Wenbin Li

DOI
https://doi.org/10.7717/peerj.7509
Journal volume & issue
Vol. 7
p. e7509

Abstract

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Background VQ proteins, the plant-specific transcription factors, are involved in plant development and multiple stresses; however, only few articles systematic reported the VQ genes in soybean. Methods In total, we identified 75 GmVQ genes, which were classified into 7 groups (I-VII). Conserved domain analysis indicated that VQ gene family members all contain the VQ domains. VQ genes from the same evolutionary branches of soybean shared similar motifs and structures. Promoter analysis revealed that cis-elements related to stress responses, phytohormone responses and controlling physical as well as reproductive growth. Based on the RNA-seq and qRT-PCR analysis, GmVQ genes were showed expressing in nine tissues, suggesting their putative function in many aspects of plant growth and development as well as response to stress in Glycine max. Results This study aims to understand the roles of VQ genes in various development processes and their expression patterns in responses to stimuli. Our results provide basic information in identification and classification of GmVQ genes. Further experimental analysis will allows us to know the functions of GmVQs participation in plant growth and stress responses.

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