Scientia Agricultura Sinica ›› 2007, Vol. 40 ›› Issue (11): 2474-2480 .

• PLANT PROTECTION • Previous Articles     Next Articles

Sequencing and analysis of Rice gall dwarf virus genome segment 6

  

  1. 华南农业大学植物病毒研究室
  • Received:2006-11-27 Revised:1900-01-01 Online:2007-11-10 Published:2007-11-10

Abstract: 【Objective】In order to understand the whole genome organization and its functions of Rice gall dwarf virus (RGDV), we got the complete sequence of RGDV genome segment 6. 【Method】Four rounds of RT-PCR were performed according to the property of segment-specific reverted repeat termini sequences reported. Sequences were analyzed by using bio-software. 【Result】The full-length cDNA of S6 was 1 651 bp with 39.13% G+C content, containing a single open reading frame (ORF) that extends 1473 nucleotides from nucleotide 25. The single ORF encoded a putative 53.3 kDa polypeptide, named Psn6, containing 490 amino acids. 【Conclusion】 RGDV Psn6 exhibited 31.7% amino acid sequence identity to P7 of Rice dwarf virus (RDV), and 30.0% to P7 of Wound tumor virus (WTV). This is the first report of the complete sequence of RGDV S6.

Key words: Phytoreovirus, Rice gall dwarf virus (RGDV), segment 6, sequence analysis

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