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Acta Horticulturae Sinica ›› 2024, Vol. 51 ›› Issue (10): 2320-2328.doi: 10.16420/j.issn.0513-353x.2023-0884

• Genetic & Breeding·Germplasm Resources·Molecular Biology • Previous Articles     Next Articles

Identification and Analysis of Complete Genomic Sequence of Broad Bean Wilt Virus 2 Beijing Rose Isolate

LIANG Yuqing1, SUN Chunhui1, DENG Congliang2, SHI Xiju2, ZHONG Yan2,*(), LI Yongqiang1,*()   

  1. 1 College of Bioscience and Resource Environment,Beijing University of Agriculture,Beijing 102206,China
    2 Science and Technology Research Center of China Customs,Beijing 102206,China
  • Received:2024-07-23 Revised:2024-09-14 Online:2024-10-25 Published:2024-10-21
  • Contact: ZHONG Yan, LI Yongqiang

Abstract:

In order to detect the pathogen of rose plants with yellow and stunt in Huairou,Beijing,small RNA deep sequencing(sRNA)and reverse transcription-polymerase chain reaction(RT-PCR)were conducted with leaf samples collected from the diseased plants. Broad bean wilt virus 2(BBWV2)was identified after sRNA deep sequencing followed by bioinformatic analyses. To further characterize the identified BBWV2(BBWV2-rose),the complete genome sequence was cloned with primer pairs designed according to the assembled contigs. Sequence analysis showed BBWV2-rose RNA1 and RNA2 were 5 903 and 3 535 nt,respectively. Phylogenetic tree analysis based on RNA1 and RNA2 CP gene sequences suggests that BBWV2-Rose RNA1 and isolate BBWV2-CN:SY:Chenopodium album(MN786954)clustered together,and BBWV2-Rose RNA2 and isolate BBWV2-CN:SY Chenopodium album(MN786955)clustered together,which was closely related. According to Fabavirus classification criteria,the virus should be an isolate of BBWV2.

Key words: rose, deep sequencing, broad bean wilt virus 2