入侵的 Vespa velutina 和本地膜翅目昆虫体内寄生虫的流行率和种群遗传分析。

IF 3.6 3区 生物学 Q1 ZOOLOGY Journal of invertebrate pathology Pub Date : 2024-09-21 DOI:10.1016/j.jip.2024.108203
Carolina Bartolomé , Damian Dasilva-Martíns , Rosa Valiñas , Luís B. Gabín-García , Anabela Nave , Ana L. García-Pérez , Karine Monceau , Denis Thiéry , Alastair Christie , Moon Bo Choi , Beatriz Sobrino , Jorge Amigo , Xulio Maside
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引用次数: 0

摘要

入侵物种通过改变当地宿主与病原体的动态关系,对其入侵生态系统的生态平衡构成威胁。为了研究这些关系及其潜在的后果,我们研究了入侵大黄蜂 Vespa velutina 和当地膜翅目昆虫的同域分离物中 Trypanosomatidae、Lipotrophidae 和 Nosematidae 的流行和遗传多样性模式:欧洲和韩国。通过 PCR 扩增和大规模平行测序收集数据,并使用种群遗传学工具进行分析。寄生虫流行率显示出很大的差异,这取决于:(i) 寄生虫科(锥虫科(Trypanosomatidae)和鼻线虫科(Nosematidae)的流行率分别最高和最低);(ii) 地点(如加利西亚的集合值最高);(iii) 季节(锥虫科和脂线虫科在春季最高);(iv) 宿主。在所有寄生虫科中,V. velutina 的寄生虫发生率明显低于本地膜翅目昆虫(与敌害释放假说一致),但在捕食活动频繁的时期,这种差异并不明显,表明存在营养传播。寄生虫种类在欧洲和南韩的分离株之间显示出明显的遗传差异,但在不同寄主之间却没有观察到差异,这表明所有膜翅目昆虫都受到当地共同病原体种群的影响。没有迹象表明V. velutina是入侵地区的外来寄生虫携带者。
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Prevalence and population genetic analyses of parasites in invasive Vespa velutina and native Hymenoptera
Invasive species pose a threat to the ecological balance of the ecosystems they invade by altering local host-pathogen dynamics. To investigate these relationships and their potential consequences, we examined the prevalence and genetic diversity patterns of Trypanosomatidae, Lipotrophidae, and Nosematidae in a collection of sympatric isolates of the invasive hornet Vespa velutina and local Hymenoptera from two recently colonized areas: Europe and South Korea. Data were gathered through PCR amplification and massive parallel sequencing, and analyses were conducted using population genetics tools. Parasite prevalences showed substantial variation depending on (i) the parasite family (Trypanosomatidae and Nosematidae were the most and less prevalent, respectively), (ii) location (e.g. Galicia displayed the highest pooled values), (iii) the season (highest in spring for Trypanosomatidae and Lipotrophidae), and (iv) the host. V. velutina exhibited significantly lower parasite occurrence than native Hymenoptera across all parasite families (consistent with the enemy release hypothesis), although this difference was less pronounced during the periods of heightened predatory activity, suggestive of trophic transmission. Parasite species displayed significant genetic differentiation between European and South Korean isolates, yet no differentiation was observed across hosts, suggesting that all Hymenoptera are exposed to a common local pathogen population. There was no indication that V. velutina acted as a carrier of foreign parasites to the invaded territories.
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来源期刊
CiteScore
6.10
自引率
5.90%
发文量
94
审稿时长
1 months
期刊介绍: The Journal of Invertebrate Pathology presents original research articles and notes on the induction and pathogenesis of diseases of invertebrates, including the suppression of diseases in beneficial species, and the use of diseases in controlling undesirable species. In addition, the journal publishes the results of physiological, morphological, genetic, immunological and ecological studies as related to the etiologic agents of diseases of invertebrates. The Journal of Invertebrate Pathology is the adopted journal of the Society for Invertebrate Pathology, and is available to SIP members at a special reduced price.
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