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Dorsey OC, Rosenthal GG. A taste for the familiar: explaining the inbreeding paradox. Trends Ecol Evol 2023; 38:132-142. [PMID: 36241551 DOI: 10.1016/j.tree.2022.09.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 09/04/2022] [Accepted: 09/12/2022] [Indexed: 11/06/2022]
Abstract
The negative consequences of inbreeding have led animal biologists to assume that mate choice is generally biased against relatives. However, inbreeding avoidance is highly variable and by no means the rule across animal taxa. Even when inbreeding is costly, there are numerous examples of animals failing to avoid inbreeding or even preferring to mate with close kin. We argue that selective and mechanistic constraints interact to limit the evolution of inbreeding avoidance, notably when there is a risk of mating with heterospecifics and losing fitness through hybridization. Further, balancing inbreeding avoidance with conspecific mate preference may drive the evolution of multivariate sexual communication. Studying different social and sexual decisions within the same species can illuminate trade-offs among mate-choice mechanisms.
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Affiliation(s)
- Owen C Dorsey
- Program in Ecology and Evolutionary Biology and Department of Biology, Texas A&M University, TX, USA; Centro de Investigaciones Científicas de las Huastecas "Aguazarca", Calnali, Hidalgo, Mexico.
| | - Gil G Rosenthal
- Centro de Investigaciones Científicas de las Huastecas "Aguazarca", Calnali, Hidalgo, Mexico; Department of Biology, University of Padua, Padua, Italy
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2
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Nakajima Y, Ogura A. Genomics and effective trait candidates of edible insects. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Vega‐Trejo R, Boer RA, Fitzpatrick JL, Kotrschal A. Sex‐specific inbreeding depression: A meta‐analysis. Ecol Lett 2022; 25:1009-1026. [PMID: 35064612 PMCID: PMC9304238 DOI: 10.1111/ele.13961] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 11/22/2021] [Accepted: 12/08/2021] [Indexed: 12/29/2022]
Affiliation(s)
- Regina Vega‐Trejo
- Department of Zoology: Ethology Stockholm University Stockholm Sweden
- Department of Zoology Edward Grey Institute University of Oxford Oxford UK
| | - Raïssa A. Boer
- Department of Zoology: Ethology Stockholm University Stockholm Sweden
| | | | - Alexander Kotrschal
- Department of Zoology: Ethology Stockholm University Stockholm Sweden
- Behavioural Ecology Group Wageningen University & Research Wageningen The Netherlands
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Duffield KR, Hunt J, Sadd BM, Sakaluk SK, Oppert B, Rosario K, Behle RW, Ramirez JL. Active and Covert Infections of Cricket Iridovirus and Acheta domesticus Densovirus in Reared Gryllodes sigillatus Crickets. Front Microbiol 2021; 12:780796. [PMID: 34917059 PMCID: PMC8670987 DOI: 10.3389/fmicb.2021.780796] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 11/01/2021] [Indexed: 11/21/2022] Open
Abstract
Interest in developing food, feed, and other useful products from farmed insects has gained remarkable momentum in the past decade. Crickets are an especially popular group of farmed insects due to their nutritional quality, ease of rearing, and utility. However, production of crickets as an emerging commodity has been severely impacted by entomopathogenic infections, about which we know little. Here, we identified and characterized an unknown entomopathogen causing mass mortality in a lab-reared population of Gryllodes sigillatus crickets, a species used as an alternative to the popular Acheta domesticus due to its claimed tolerance to prevalent entomopathogenic viruses. Microdissection of sick and healthy crickets coupled with metagenomics-based identification and real-time qPCR viral quantification indicated high levels of cricket iridovirus (CrIV) in a symptomatic population, and evidence of covert CrIV infections in a healthy population. Our study also identified covert infections of Acheta domesticus densovirus (AdDNV) in both populations of G. sigillatus. These results add to the foundational research needed to better understand the pathology of mass-reared insects and ultimately develop the prevention, mitigation, and intervention strategies needed for economical production of insects as a commodity.
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Affiliation(s)
- Kristin R. Duffield
- Crop BioProtection Research Unit, Agricultural Research Service, United States Department of Agriculture, National Center for Agricultural Utilization Research, Peoria, IL, United States
- *Correspondence: Kristin R. Duffield,
| | - John Hunt
- School of Science, Western Sydney University, Richmond, NSW, Australia
| | - Ben M. Sadd
- School of Biological Sciences, Illinois State University, Normal, IL, United States
| | - Scott K. Sakaluk
- School of Biological Sciences, Illinois State University, Normal, IL, United States
| | - Brenda Oppert
- Stored Product Insect and Engineering Research Unit, Agricultural Research Service, United States Department of Agriculture, Center for Grain and Animal Health Research, Manhattan, KS, United States
| | - Karyna Rosario
- Marine Genomics Laboratory, University of South Florida, St. Petersburg, FL, United States
| | - Robert W. Behle
- Crop BioProtection Research Unit, Agricultural Research Service, United States Department of Agriculture, National Center for Agricultural Utilization Research, Peoria, IL, United States
| | - José L. Ramirez
- Crop BioProtection Research Unit, Agricultural Research Service, United States Department of Agriculture, National Center for Agricultural Utilization Research, Peoria, IL, United States
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