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

• 遗传育种·种质资源·分子生物学 • 上一篇    下一篇

蚕豆萎蔫病毒2号北京玫瑰分离物的鉴定

梁宇卿1, 孙春辉1, 邓丛良2, 史喜菊2, 种焱2,*(), 李永强1,*()   

  1. 1 北京农学院生物与资源环境学院,北京102206
    2 中国海关科学技术研究中心,北京100026
  • 收稿日期:2024-07-23 修回日期:2024-09-14 出版日期:2024-10-25 发布日期:2024-10-21
  • 通讯作者:
    *E-mail:
  • 基金资助:
    “十四五”国家重点研发计划项目(2021YFF0703804)

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 Published:2024-10-25 Online:2024-10-21

摘要:

为明确引起北京怀柔玫瑰黄化、矮缩的病原,采用小RNA测序和反转录PCR对玫瑰病叶进行鉴定和分析。小RNA测序表明该病害与蚕豆萎蔫病毒2号(broad bean wilt virus 2,BBWV2)的侵染有关。根据深度测序结果,设计特异性引物对其全基因组进行克隆,序列分析表明该分离物基因组RNA1和RNA2分别为5 903和3 535 nt。基于RNA1和RNA2 CP基因序列的系统进化树分析表明,BBWV2-Rose RNA1与中国沈阳藜分离物BBWV2-CN:SY:Chenopodium album(MN786954)聚为一支,BBWV2-Rose RNA2与中国沈阳藜分离物BBWV2-CN:SY Chenopodium album(MN786955)聚为一支,亲缘关系最近。根据蚕豆病毒属(Fabavirus)的分类标准,该病毒是BBWV2的一个分离物。

关键词: 玫瑰, 深度测序, 蚕豆萎蔫病毒2号

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