Biotechnology Bulletin ›› 2018, Vol. 34 ›› Issue (3): 230-234.doi: 10.13560/j.cnki.biotech.bull.1985.2018-0019

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Preliminary Study on the Function of Fv-Afe1 Gene in Flammulina velutipes

JIANG Si-yuan1, CHOU Tian-sheng1, LI Xiao2, HUANG Rong-mei1, XIE Bao-gui1   

  1. 1. Mycological Research Center of Fujian Agricultural and Forestry University,Fuzhou 350002;
    2. Institute of Microbiology,Chinese Academy of Sciences,Beijing 100080
  • Received:2018-01-08 Online:2018-03-20 Published:2018-04-10

Abstract: According to genome data of a Flammulina velutipes strain L11,we selected Fv-Afe1 belonging to adenylate-forming enzymes superfamily. Transcriptome of F. velutipes was used to analyze gene structure,bioinformatics software to predict the amino acid sequence of Fv-Afe1,the predicted results and amino acid sequences of other species in NCBI were combined to construct phylogenetic tree,and qRT-PCR and DGE(digital gene expression profiling)data to analyze the gene expression in different growth stage. The results showed Fv-Afe1 gene contained 967 bp,including 4 exons and 3 introns. The results of bioinformatics revealed that the gene had two domains at tertiary structure of amino acids. Besides,the product of Fv-Afe1 was intracellular enzyme and no transmembrane structure,Fv-Afe1 belonging to the adenylate-forming enzymes superfamily was confirmed by analyzing phylogenetic tree,expression test showed that Fv-Afe1 had the highest expression in stipe-elongation stage and the secondly highest in stipe-maturation.

Key words: Flammulina velutipes, fruit body forming, adenylate-forming enzymes superfamily