浙江农业学报 ›› 2025, Vol. 37 ›› Issue (3): 612-620.DOI: 10.3969/j.issn.1004-1524.20240564
温枭雄1,2(), 舒琴1,2, 鲍梦楠1,2, 闫佳会1,2,*(
)
收稿日期:
2024-06-28
出版日期:
2025-03-25
发布日期:
2025-04-02
作者简介:
温枭雄(1999—),男,山东青岛人,硕士研究生,研究方向为植物病毒。E-mail: 15863005348@163.com
通讯作者:
* 闫佳会,E-mail:15209787170@163.com
基金资助:
WEN Xiaoxiong1,2(), SHU Qin1,2, BAO Mengnan1,2, YAN Jiahui1,2,*(
)
Received:
2024-06-28
Online:
2025-03-25
Published:
2025-04-02
摘要:
为调查青海省海东市循化县辣椒病毒病的发生情况,探究引起辣椒皱缩、矮小等症状的原因,本研究于2023年9月采集了循化县辣椒种植区域的疑似病毒病样本,利用reverse transcription-polymerase chain reaction(RT-PCR)技术检测。结果显示,19份辣椒病样中,8份样本被确认为感染辣椒脉斑驳病毒(Chilli Veinal Mottle virus, ChiVMV),检出率为42%。该病毒的RNA链全长为9 754 nt。全基因组序列克隆和分析揭示,青海分离物的序列与其他ChiVMV分离物相比存在一个显著的重组事件,这一重组事件导致了部分基因组区域的序列差异,与中国的合肥、宁波、昆明、泸州、苏州,以及印度和巴基斯坦等地的分离物相比,本研究获得的青海分离物的核苷酸序列一致性介于84%~100%。本研究首次在青海省循化县辣椒上检测到ChiVMV,并提供了该病毒的全基因组序列,这为ChiVMV抗病品种选育和相关病毒病防治提供了新的理论依据和数据支持,并有助于理解病毒的遗传变异及其在不同地域的流行动态。
中图分类号:
温枭雄, 舒琴, 鲍梦楠, 闫佳会. 青海省循化县辣椒脉斑驳病毒分离物的全基因组序列克隆与序列分析[J]. 浙江农业学报, 2025, 37(3): 612-620.
WEN Xiaoxiong, SHU Qin, BAO Mengnan, YAN Jiahui. Identification and complete genome sequence cloning of the chili veinal mottle virus in Qinghai Province of China[J]. Acta Agriculturae Zhejiangensis, 2025, 37(3): 612-620.
引物名称 Primer name | 引物序列 Primer sequences (5'→3') | 退火温度 Tm/℃ | 长度 Length/bp |
---|---|---|---|
ChiVMV-F | TGACTATGATGTCACAGATGA | 57.5 | 795 |
ChiVMV-R | AACGCCAACTATTGAACAGCTT | 58.0 | |
1F | TCATAAAATTTTCTTGAAATTCAGTCATCAG | 55.0 | 1 451 |
1R | CTTGTTCCTAAAAAGATGTAAGGAACCT | 57.0 | |
2F | ATCATGAAGCAACGGGTAAAGT | 57.5 | 2 500 |
2R | CCTTGACATATTGAATGAACTCTACCTC | 58.0 | |
3F | GGAGAAGATAGCATTAGTTCCAGTACCACT | 61.0 | 2 500 |
3R | TAGTACATTGATTGTATTCACGCACTGACAT | 60.0 | |
4F | GAACCATGGCACTTTTTGAGCTTCC | 61.0 | 2 500 |
4R | GCCATTCCAAAGTCTCAACCTTTGC | 61.5 | |
5F | CTTTCTCCGAACTTGGTTTGTCGTATGATTTC | 61.0 | 1 553 |
5R | ATAACATATATAAAGTAGTATGAAACCGAGCGTGC | 60.0 |
表1 本研究所用引物序列
Table 1 Primer sequences used in this study
引物名称 Primer name | 引物序列 Primer sequences (5'→3') | 退火温度 Tm/℃ | 长度 Length/bp |
---|---|---|---|
ChiVMV-F | TGACTATGATGTCACAGATGA | 57.5 | 795 |
ChiVMV-R | AACGCCAACTATTGAACAGCTT | 58.0 | |
1F | TCATAAAATTTTCTTGAAATTCAGTCATCAG | 55.0 | 1 451 |
1R | CTTGTTCCTAAAAAGATGTAAGGAACCT | 57.0 | |
2F | ATCATGAAGCAACGGGTAAAGT | 57.5 | 2 500 |
2R | CCTTGACATATTGAATGAACTCTACCTC | 58.0 | |
3F | GGAGAAGATAGCATTAGTTCCAGTACCACT | 61.0 | 2 500 |
3R | TAGTACATTGATTGTATTCACGCACTGACAT | 60.0 | |
4F | GAACCATGGCACTTTTTGAGCTTCC | 61.0 | 2 500 |
4R | GCCATTCCAAAGTCTCAACCTTTGC | 61.5 | |
5F | CTTTCTCCGAACTTGGTTTGTCGTATGATTTC | 61.0 | 1 553 |
5R | ATAACATATATAAAGTAGTATGAAACCGAGCGTGC | 60.0 |
图2 ChiVMV样本RT-PCR检测 1-19, 19份辣椒病样; M, DL 2 000 DNA marker。
Fig.2 RT-PCR detection of ChiVMV samples 1-19, Nineteen diseased pepper samples; M, DL 2 000 DNA marker.
图3 ChiVMV青海分离物分段克隆 1-5, ChiVMV五段分段克隆片段; M, DL 2 000 DNA marker。
Fig.3 Segmented cloning of qinghai ChiVMV isolate 1-5, ChiVMV five-segment cloned fragments; M, DL 2 000 DNA marker.
登录号 Accession no. | 分离物 Isolate | 寄主 Host | 地区 Country | 核苷酸相似度 Nucleotide Similiarity/% |
---|---|---|---|---|
KX650863 | Dzh-Qyg | Nicotiana tabacum | China: Hefei | 99.97 |
ON168942 | ChiVMV-D | Capsicum annuum | China: Ningbo | 93.34 |
MK405594 | SiChuan Luzhou | Nicotiana tabacum | China: Luzhou | 93.19 |
OP589298 | GZ | Tobacco | China: Guiyang | 93.11 |
MT787292 | ChiVMV-Dh | Chilli pepper | China: Kunming | 92.23 |
PP582383 | AH | Capsicum | China: Suzhou | 87.36 |
OP404087 | YunN | Capsicum annuum | China: Ningbo | 85.75 |
ON838424 | - | Chilli | China: Ningbo | 85.64 |
MN207122 | ChiVMV-PK | Capsicum annuum | Pakistan | 86.12 |
MN508960 | ChiVMV-Uravakonda | Hot pepper | India: Uravakonda, Andhra pradesh | 84.41 |
OR347840 | To | Tomato | India: Karnataka | 84.29 |
表2 下载的11个ChiVMV全基因组序列相关信息
Table 2 Information on the 11 downloaded full genome sequences of ChiVMV
登录号 Accession no. | 分离物 Isolate | 寄主 Host | 地区 Country | 核苷酸相似度 Nucleotide Similiarity/% |
---|---|---|---|---|
KX650863 | Dzh-Qyg | Nicotiana tabacum | China: Hefei | 99.97 |
ON168942 | ChiVMV-D | Capsicum annuum | China: Ningbo | 93.34 |
MK405594 | SiChuan Luzhou | Nicotiana tabacum | China: Luzhou | 93.19 |
OP589298 | GZ | Tobacco | China: Guiyang | 93.11 |
MT787292 | ChiVMV-Dh | Chilli pepper | China: Kunming | 92.23 |
PP582383 | AH | Capsicum | China: Suzhou | 87.36 |
OP404087 | YunN | Capsicum annuum | China: Ningbo | 85.75 |
ON838424 | - | Chilli | China: Ningbo | 85.64 |
MN207122 | ChiVMV-PK | Capsicum annuum | Pakistan | 86.12 |
MN508960 | ChiVMV-Uravakonda | Hot pepper | India: Uravakonda, Andhra pradesh | 84.41 |
OR347840 | To | Tomato | India: Karnataka | 84.29 |
图6 ChiVMV不同分离株中国分离株的氨基酸序列比对 图中框选区域为氨基酸突变位点。
Fig.6 Amino acid sequence alignment of different ChiVMV isolates from China The regional amino acid mutation sites are selected in the figure.
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