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Pointer MD, Spurgin LG, Gage MJG, McMullan M, Richardson DS. Genetic architecture of dispersal behaviour in the post-harvest pest and model organism Tribolium castaneum. Heredity (Edinb) 2023; 131:253-262. [PMID: 37516814 PMCID: PMC10539327 DOI: 10.1038/s41437-023-00641-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 07/19/2023] [Accepted: 07/19/2023] [Indexed: 07/31/2023] Open
Abstract
Dispersal behaviour is an important aspect of the life-history of animals. However, the genetic architecture of dispersal-related traits is often obscure or unknown, even in well studied species. Tribolium castaneum is a globally significant post-harvest pest and established model organism, yet studies of its dispersal have shown ambiguous results and the genetic basis of this behaviour remains unresolved. We combine experimental evolution and agent-based modelling to investigate the number of loci underlying dispersal in T. castaneum, and whether the trait is sex-linked. Our findings demonstrate rapid evolution of dispersal behaviour under selection. We find no evidence of sex-biases in the dispersal behaviour of the offspring of crosses, supporting an autosomal genetic basis of the trait. Moreover, simulated data approximates experimental data under simulated scenarios where the dispersal trait is controlled by one or few loci, but not many loci. Levels of dispersal in experimentally inbred lines, compared with simulations, indicate that a single locus model is not well supported. Taken together, these lines of evidence support an oligogenic architecture underlying dispersal in Tribolium castaneum. These results have implications for applied pest management and for our understanding of the evolution of dispersal in the coleoptera, the world's most species-rich order.
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2
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Meng J, Wang WX. Differentiation and decreased genetic diversity in field contaminated oysters Crassostrea hongkongensis: Identification of selection signatures. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 333:122101. [PMID: 37364753 DOI: 10.1016/j.envpol.2023.122101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 06/04/2023] [Accepted: 06/22/2023] [Indexed: 06/28/2023]
Abstract
The extent to which chemical contamination affects the population structure and genetic diversity of natural populations remains elusive. Here, we used the whole-genome resequencing and transcriptome to diagnose the effects of long-term exposure to multiple elevated chemical pollutants on the population differentiation and genetic diversity in oysters Crassostrea hongkongensis in a typically polluted Pearl River Estuary (PRE) of Southern China. Population structure revealed an obvious differentiation between the PRE oysters and those collected from a nearby clean Beihai (BH) individuals, while no significant differentiation was observed among individuals collected from the three pollution sites within PRE due to the high gene flow. The decreased genetic diversity in the PRE oysters reflected the long-term effects of chemical pollutants. Selective sweeps between BH and PRE oysters revealed that chemical defensome genes, including glutathione S-transferase, zinc transporter, were responsible for their differentiation, sharing common metabolic process of other pollutants. Combined with the genome-wide association analysis, 25 regions containing 77 genes were identified to be responsible for the direct selection regions of metals. Linkage disequilibrium blocks and haplotypes within these regions provided the biomarkers of permanent effects. Our results provide important insights to the genetic mechanisms underlying the rapid evolution under chemical contamination in marine bivalves.
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Affiliation(s)
- Jie Meng
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China; Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Wuhan, China
| | - Wen-Xiong Wang
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China.
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3
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Cardoso DN, Oliveira M, Soares AMVM, Loureiro S. Susceptibility of Folsomia candida to Agrochemicals after Multigenerational Exposure to Human Pharmaceuticals. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2022; 41:592-600. [PMID: 33590911 DOI: 10.1002/etc.5013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/28/2020] [Accepted: 02/09/2021] [Indexed: 06/12/2023]
Abstract
In realistic environmental scenarios, soil organisms can be exposed to a combination of pharmaceuticals and agriproducts or within different time frames. Therefore, it is necessary to increase knowledge on soil organism susceptibility under a complex mixture exposure scenario. The present study aimed to assess the susceptibility of the collembolan Folsomia candida to copper and dimethoate on a pre-exposure for 3 generations to human pharmaceuticals (fluoxetine and carbamazepine). Carryover effects on reproductive output and survival were observed after a multigenerational pre-exposure to carbamazepine or fluoxetine, considerably increasing the sensitivity of collembolans to both copper and dimethoate. This was more evident for collembolans pre-exposed to the highest concentrations of both pharmaceuticals (40 mg/kg soil), as demonstrated by a significant reduction in the number of juveniles and increased mortality. In addition, pre-exposure to carbamazepine and fluoxetine induced varying effects on subsequent exposure to the same chemical. Although pre-exposure to carbamazepine led to a decrease in collembolan reproduction, even when transferred to a clean medium, fluoxetine induced severe effects but only when collembolans were exposed to other contaminants (i.e., not when transferred to clean soil). The present study highlighted the need to consider carryover effects and possible interactions between pharmaceuticals and other contaminants under simultaneous exposure. Environ Toxicol Chem 2022;41:592-600. © 2021 SETAC.
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Affiliation(s)
- Diogo N Cardoso
- Department of Biology and Centre for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal
| | - Miguel Oliveira
- Department of Biology and Centre for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal
| | - Amadeu M V M Soares
- Department of Biology and Centre for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal
| | - Susana Loureiro
- Department of Biology and Centre for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal
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Loria A, Cristescu ME, Gonzalez A. Genotype diversity promotes the persistence of Daphnia populations exposed to severe copper stress. J Evol Biol 2022; 35:265-277. [PMID: 35000231 DOI: 10.1111/jeb.13979] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 12/15/2021] [Accepted: 12/20/2021] [Indexed: 11/29/2022]
Abstract
When environmental stressors of high intensity are sustained for long periods of time, populations face high probabilities of being extirpated. However, depending on the intensity of the stressor, large populations with sufficient genetic diversity may persist. We report the results of an experiment that tracked the persistence of Daphnia populations exposed to copper contamination. We assessed whether genotypic diversity reduced the risk of extinction. We created monoclonal and multiclonal populations and monitored their population sizes during a 32-week experiment. Cu was applied at a sub-lethal concentration and then increased every week until the population sizes dropped to about 10% of the carrying capacity (Cu at 180 μg/L). The concentration was then increased up to 186 μg/L and held stable until the end of the experiment. A survival analysis showed that clonal diversity extended the persistence of Daphnia populations, but copper contamination caused a substantial genetic erosion followed by population extirpation. However, some Cu-treated populations, mostly multiclonal, showed U-shaped patterns of growth consistent with evolutionary rescue but these did not lead to lasting population recovery. These results highlight the importance of genetic variation for population persistence, but they also show how quickly it can be lost in contaminated environments.
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Affiliation(s)
| | | | - Andrew Gonzalez
- Department of Biology, McGill University, Montreal, QC, Canada
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Plesnar-Bielak A, Sychta K, Gaczorek TS, Palka JK, Prus MA, Prokop ZM. Does operational sex ratio influence relative strength of purging selection in males versus females? J Evol Biol 2019; 33:80-88. [PMID: 31549754 DOI: 10.1111/jeb.13547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 09/13/2019] [Accepted: 09/19/2019] [Indexed: 11/29/2022]
Abstract
According to theory, sexual selection in males may efficiently purge mutation load of sexual populations, reducing or fully compensating 'the cost of males'. For this to occur, mutations not only need to be deleterious to both sexes, they also must affect males more than females. A frequently overlooked problem is that relative strength of selection on males versus females may vary between environments, with social conditions being particularly likely to affect selection in males and females differently. Here, we induced mutations in red flour beetles (Tribolium castaneum) and tested their effect in both sexes under three different operational sex ratios (1:2, 1:1 and 2:1). Induced mutations decreased fitness of both males and females, but their effect was not stronger in males. Surprisingly, operational sex ratio did not affect selection against deleterious mutations nor its relative strength in the sexes. Thus, our results show no support for the role of sexual selection in the evolutionary maintenance of sex.
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Affiliation(s)
| | - Karolina Sychta
- Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland
| | - Tomasz S Gaczorek
- Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland
| | - Joanna K Palka
- Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland
| | - Monika A Prus
- Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland
| | - Zofia M Prokop
- Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland
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6
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Prokop ZM, Hlebowicz K, Gaczorek TS, Antoł WM, Martin OY, Gage MJG, Michalczyk Ł. No evidence for short‐term purging benefits of sexual selection in inbred red flour beetle populations. J Zool (1987) 2018. [DOI: 10.1111/jzo.12633] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Z. M. Prokop
- Institute of Environmental Sciences Jagiellonian University Kraków Poland
| | - K. Hlebowicz
- Institute of Environmental Sciences Jagiellonian University Kraków Poland
- Institute of Zoology and Biomedical Research Jagiellonian University Kraków Poland
| | - T. S. Gaczorek
- Institute of Environmental Sciences Jagiellonian University Kraków Poland
| | - W. M. Antoł
- Institute of Environmental Sciences Jagiellonian University Kraków Poland
| | - O. Y. Martin
- Department of Biology IBZ Institute of Integrative Biology ETH Zürich Zürich Switzerland
| | - M. J. G. Gage
- School of Biological Sciences Norwich Research Park University of East Anglia Norwich UK
| | - Ł. Michalczyk
- Institute of Zoology and Biomedical Research Jagiellonian University Kraków Poland
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Wang H, Zhang J, Zhao S, Zhu KY, Wu Y. Limited variations in susceptibility to an insecticidal double-stranded RNA (dsvATPaseE) among a laboratory strain and seven genetically differentiated field populations of Tribolium castaneum. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2018; 149:143-148. [PMID: 30033010 DOI: 10.1016/j.pestbp.2018.06.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 06/02/2018] [Accepted: 06/13/2018] [Indexed: 06/08/2023]
Abstract
There has been a considerable growth in interest to use RNA interference (RNAi) as a novel insect pest management strategy in the past 10 years. However, there has been virtually no information on insect population variations in response to double-stranded RNA (dsRNA) molecules. The objective of this study was to generate baseline susceptibilities of the red flour beetle (Tribolium castaneum) to an insecticidal dsRNA targeting vacuolar H+-ATPase subunit E gene (dsvATPaseE), and correlate the susceptibility data with sequence and expression variations of the target gene (vATPaseE), expression variations of the RNAi core genes, and overall genetic differences among a laboratory strain and seven geographical field populations of T. castaneum collected in China. Our results showed limited variations in the LD50 values of dsvATPaseE, which ranged from 0.10 to 0.29 ng/larva among the laboratory strain and the seven field populations. Considering the overlapping of the 95% confidence intervals of their LD50 values, there were no significant differences among the laboratory strain and field populations. We also found limited sequence polymorphisms and low frequencies of the polymorphisms of vATPaseE, and limited variations (<2-fold) of the endogenous expression of vATPaseE among the laboratory strain and field populations. However, we found considerable genetic variations among the individuals within each field population for most of eight loci and moderate to large genetic variations among the field populations. These results demonstrated that although the genetic variabilities were considerable among these field populations, the efficiency of RNAi targeting vATPaseE was highly consistent in T. castaneum. Our study provides work frames of resistance risk assessment for RNAi-based insect pest management programs.
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Affiliation(s)
- Huidong Wang
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.
| | - Jianpeng Zhang
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.
| | - Shan Zhao
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.
| | - Kun Yan Zhu
- Department of Entomology, Kansas State University, Manhattan, KS 66506, USA.
| | - Yidong Wu
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.
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Prokop ZM, Prus MA, Gaczorek TS, Sychta K, Palka JK, Plesnar-Bielak A, Skarboń M. Do males pay for sex? Sex-specific selection coefficients suggest not. Evolution 2017; 71:650-661. [PMID: 27943275 DOI: 10.1111/evo.13151] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 10/31/2016] [Accepted: 11/11/2016] [Indexed: 11/29/2022]
Affiliation(s)
- Zofia M. Prokop
- Institute of Environmental Sciences; Jagiellonian University; Gronostajowa 7 30-387 Krakow Poland
| | - Monika A. Prus
- Institute of Environmental Sciences; Jagiellonian University; Gronostajowa 7 30-387 Krakow Poland
| | - Tomasz S. Gaczorek
- Institute of Environmental Sciences; Jagiellonian University; Gronostajowa 7 30-387 Krakow Poland
| | - Karolina Sychta
- Institute of Environmental Sciences; Jagiellonian University; Gronostajowa 7 30-387 Krakow Poland
| | - Joanna K. Palka
- Institute of Environmental Sciences; Jagiellonian University; Gronostajowa 7 30-387 Krakow Poland
| | - Agata Plesnar-Bielak
- Institute of Environmental Sciences; Jagiellonian University; Gronostajowa 7 30-387 Krakow Poland
| | - Magdalena Skarboń
- Institute of Environmental Sciences; Jagiellonian University; Gronostajowa 7 30-387 Krakow Poland
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