Historical museum samples reveal signals of selection and drift in response to changing insecticide use in an agricultural pest moth

Author:

Parvizi Elahe1ORCID,Bachler Andy23,Zwick Andreas4,Walsh Tom K3,Moritz Craig2,McGaughran Angela12ORCID

Affiliation:

1. Department of Ecology, Biodiversity and Animal Behaviour, Te Aka Mātuatua/School of Science, University of Waikato , Hamilton , New Zealand

2. Division of Ecology and Evolution, Research School of Biology, Australian National University , Canberra, ACT , Australia

3. Commonwealth Scientific and Industrial Research Organisation, Land & Water, Black Mountain Laboratories , Canberra, ACT , Australia

4. National Research Collections Australia, Commonwealth Scientific and Industrial Research Organisation , Black Mountain, Canberra, ACT , Australia

Abstract

Abstract In response to environmental and human-imposed selective pressures, agroecosystem pests frequently undergo rapid evolution, with some species having a remarkable capacity to rapidly develop pesticide resistance. Temporal sampling of genomic data can comprehensively capture such adaptive changes over time, for example, by elucidating allele frequency shifts in pesticide resistance loci in response to different pesticides. Here, we leveraged museum specimens spanning over a century of collections to generate temporal contrasts between pre- and post-insecticide populations of an agricultural pest moth, Helicoverpa armigera. We used targeted exon sequencing of 254 samples collected across Australia from the pre-1950s (prior to insecticide introduction) to the 1990s, encompassing decades of changing insecticide use. Our sequencing approach focused on genes that are known to be involved in insecticide resistance, environmental sensation, and stress tolerance. We found an overall lack of spatial and temporal population structure change across Australia. In some decades (e.g., 1960s and 1970s), we found a moderate reduction of genetic diversity, implying stochasticity in evolutionary trajectories due to genetic drift. Temporal genome scans showed extensive evidence of selection following insecticide use, although the majority of selected variants were low impact. Finally, alternating trajectories of allele frequency change were suggestive of potential antagonistic pleiotropy. Our results provide new insights into recent evolutionary responses in an agricultural pest and show how temporal contrasts using museum specimens can improve mechanistic understanding of rapid evolution.

Funder

Australian Research Council

Commonwealth Scientific and Industrial Research Organisation

Publisher

Oxford University Press (OUP)

Reference58 articles.

1. Insecticide resistance mechanisms and their management in Helicoverpa armigera (Hübner)—A review;Ahmad;Journal of Agricultural Research,2007

2. Population structure and gene flow in the global pest, Helicoverpa armigera;Anderson;Molecular Ecology,2016

3. Mitochondrial DNA analysis of field populations of Helicoverpa armigera (Lepidoptera: Noctuidae) and of its relationship to H. zea;Behere;BMC Evolutionary Biology,2007

4. Natural history collections as a resource for conservation genomics: Understanding the past to preserve the future;Benham;The Journal of Heredity,2023

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3