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葡萄酒Pinot gris病毒 (GPGV) 在澳大利亚的遗传变异性

Kamalpreet Kaur^1,2, Amy Rinaldo³, David Lovelock⁴

¹School of Applied Systems Biology, La Trobe University, Bundoora, VIC, Australia. kamalpreet.kaur@agriculture.vic.gov.au.

Virology journal

|September 13, 2023

概括

葡萄藤皮诺灰色病毒 (GPGV) 感染了超过20%的澳大利亚葡萄藤,显示出高度的遗传多样性和可能的欧洲起源. 该研究确定了四种类型和至少五种引入,没有明确与症状的联系.

科学领域:

植物病理学植物病理学
病毒学病毒学
遗传学是一个遗传学.

背景情况:

葡萄葡萄Pinot gris病毒 (GPGV) 于2016年首次在澳大利亚被发现.
GPGV对澳大利亚葡萄产量的影响在很大程度上是未知的.

研究的目的:

调查澳大利亚GPGV的流行率和遗传多样性.
确定澳大利亚GPGV的起源和引入途径.

主要方法:

使用逆转录-聚合酶链反应 (RT-PCR) 检测PGPGV.
32个澳大利亚GPGV分离物的全基因组测序.
遗传学和单种类型分析,包括与海外分离物进行比较.

主要成果:

新南威尔士州,南澳大利亚州和维多利亚州的PGPGV患病率为21.8% (473/2171).
测序揭示了澳大利亚分离物中的高核酸同质性.
遗传学分析确定了四个不同的类,并建议至少有五个单独的引入,可能来自欧洲.
重组和哈普洛型分析表明,在引入后出现了新的GPGV菌株.
没有发现GPGV基因型与观察到的症状 (如叶子斑点或发育迟缓) 之间的相关性;病毒通常无症状.

结论:

GPGV在澳大利亚广泛传播,具有显著的遗传多样性.
来自欧洲的多次引入已经发生,导致了新的菌株的出现.
GPGV可以在没有引起明显症状的情况下感染葡萄树,从而使疾病管理复杂化.

关键词:

GPGVGPGVGPGVGPGVGPGVGPGVGPGVGPGVGPGVGPGVGGPGVGPGVGPGVGPGVGPGVGPGVGPGVGPGVGPGVGPGVGPGVGPGVGPGVGPGVGPGVG 中间连接网络的连接网络.转基因组 HTS 的情况.人类遗传学分析人口遗传学人口遗传学再组合的重组方式

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