Rapid resistance to pesticide control is predicted to evolve in an invasive fish.,Scientific Reports

当前位置： X-MOL 学术 › Sci. Rep. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Rapid resistance to pesticide control is predicted to evolve in an invasive fish.
Scientific Reports ( IF 3.8 ) Pub Date : 2019-12-03 , DOI: 10.1038/s41598-019-54260-5
Mark R Christie _{1,

2} , Maria S Sepúlveda ₂ , Erin S Dunlop _{3,

4}

Affiliation

Xenobiotic resistance is commonly found in species with short generation times such as bacteria, annual plants, and insects. Nevertheless, the fundamental evolutionary principles that govern the spread of resistance alleles hold true for species with longer generation times. One such example could occur with sea lamprey (Petromyzon marinus), a parasitic invasive species in the Laurentian Great Lakes that decimated native fish populations prior to its control with the pesticide 3-trifluoromethyl-4-nitrophenol (TFM). Since the 1950s, tributaries have been treated annually with TFM, where treatments effectively remove most, but not all, larval sea lamprey. We developed an eco-genetic model of sea lamprey to examine factors affecting the evolution of resistance and found that resistance alleles rapidly rise to fixation after 40-80 years of treatment, despite the species' relatively long generation time (4-7 years). The absence of natal homing allows resistant individuals to spread quickly throughout the entire system, but also makes the early detection of resistance challenging. High costs of resistance and density independent reproduction can delay, but not prevent, the onset of resistance. These results illustrate that sea lamprey have the potential to evolve resistance to their primary control agent in the near future, highlighting the urgent need for alternative controls.

中文翻译：

预计对入侵性鱼类会产生对杀虫剂控制的快速抵抗力。

对异源生物的抗性通常出现在具有较短生成时间的物种中，例如细菌，一年生植物和昆虫。尽管如此，控制抗性等位基因传播的基本进化原理对于具有较长世代的物种仍然适用。一个这样的例子可能发生在海蓝rey（Petromyzon marinus）上，这是劳伦大湖中的一种寄生性入侵物种，在用农药3-三氟甲基-4-硝基苯酚（TFM）控制之前，它会淘汰本地鱼类种群。自1950年代以来，每年都使用TFM进行支流治疗，这种方法可有效去除大部分（但不是全部）幼虫海鳗。我们开发了海七lamp鳗的生态遗传模型，以研究影响抗性进化的因素，并发现抗性等位基因经过40-80年的治疗后迅速上升为固着，尽管该物种的生成时间相对较长（4-7年）。没有出生归巢，抗性个体可以在整个系统中快速传播，但也使得早期发现抗性具有挑战性。电阻的高成本和密度独立的繁殖可以延迟但不能阻止电阻的发作。这些结果表明，海鳗在不久的将来有可能发展对其主要控制剂的抗性，这突出表明了对替代控制的迫切需求。但不能阻止抵抗的发作。这些结果表明，海鳗在不久的将来有可能发展对其主要控制剂的抗性，这突出表明了对替代控制的迫切需求。但不能阻止抵抗的发作。这些结果表明，海鳗在不久的将来有可能发展对其主要控制剂的抗性，这突出表明了对替代控制的迫切需求。

更新日期：2019-12-03

点击分享查看原文

点击收藏

公开下载

阅读更多本刊新发论文本刊介绍/投稿指南