Global Invasion of Thrips parvispinus (Karny) (Thysanoptera: Thripidae) Across Three Continents Associated With Its One Haplotype

IF 2 3区 农林科学 Q2 ENTOMOLOGY
Muhammad Z. Ahmed, John W. Roberts, Felipe N. Soto-Adames, Cindy L. McKenzie, Lance S. Osborne
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Abstract

Thrips parvispinus (Karny) is an exotic pest that has invaded many regions around the world in the last three decades. It was first detected in Florida in 2020 on ornamental plants (Hoya and Anthurium) in greenhouses and subsequently on ornamental plants in residential landscapes (Gardenia) in 2021. However, its first report on open vegetable field crops (Capsicum) in Florida was in 2022. We conducted field surveys and genetic analysis to answer three questions: (1) Is the population of T. parvispinus that invaded Florida the same as the one that has spread globally in the last few decades? (2) Is the host expansion to Capsicum in Florida a new population or the extension of the existing population reported on ornamental plants? and (3) What are the native and invaded distribution ranges of T. parvispinus? We analysed the genetic variation in the mitochondrial gene cytochrome oxidase I (COI) to address these questions. The global genetic diversity analysis of T. parvispinus revealed 18 haplotypes (populations) worldwide based on available data, but only one population (Hap1) invaded three continents: Africa, Europe, and North America. Based on available data, the highest haplotype diversity was observed in India, suggesting India may be part of the presumed native range (South and Southeast Asian countries) of T. parvispinus. Our survey of retail plant stores across 10 Florida counties indicated that plant trade is the source of T. parvispinus in open vegetable field crops and ornamental landscape plants. The outcome of this study will assist with regulatory and management decisions of T. parvispinus in Florida and elsewhere.

Abstract Image

单倍型三大洲小蓟马(Thysanoptera: Thripidae)的全球入侵
蓟马(thrps parvispinus)是一种外来害虫,在过去的三十年中入侵了世界许多地区。它于2020年首次在佛罗里达州的温室观赏植物(Hoya和Anthurium)上被发现,随后于2021年在住宅景观中的观赏植物(栀子花)上被发现。然而,它的第一份关于佛罗里达州露天蔬菜作物(辣椒)的报告是在2022年。我们进行了实地调查和遗传分析,以回答以下三个问题:(1)入侵佛罗里达的T. parvispinus的种群与过去几十年在全球传播的种群相同吗?(2)佛罗里达辣椒寄主扩展是一个新种群还是现有种群在观赏植物上的延伸?(3)小野鼠的本地和入侵分布范围是什么?我们分析了线粒体基因细胞色素氧化酶I (COI)的遗传变异来解决这些问题。对parvispinus的全球遗传多样性分析显示,全球共有18个单倍型(种群),但只有一个种群(Hap1)入侵了非洲、欧洲和北美三大洲。根据现有数据,在印度观察到最高的单倍型多样性,这表明印度可能是parvispinus的假定原生地(南亚和东南亚国家)的一部分。通过对佛罗里达州10个县的零售植物商店的调查表明,植物贸易是露天蔬菜作物和观赏景观植物中小叶螟的来源。本研究的结果将有助于在佛罗里达州和其他地方的管理和管理的决定。
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来源期刊
CiteScore
3.40
自引率
5.30%
发文量
132
审稿时长
6 months
期刊介绍: The Journal of Applied Entomology publishes original articles on current research in applied entomology, including mites and spiders in terrestrial ecosystems. Submit your next manuscript for rapid publication: the average time is currently 6 months from submission to publication. With Journal of Applied Entomology''s dynamic article-by-article publication process, Early View, fully peer-reviewed and type-set articles are published online as soon as they complete, without waiting for full issue compilation.
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