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Dyson CJ, Piscano OL, Durham RM, Thompson VJ, Johnson CH, Goodisman MAD. Temporal Analysis of Effective Population Size and Mating System in a Social Wasp. J Hered 2021; 112:626-634. [PMID: 34558622 DOI: 10.1093/jhered/esab057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 09/20/2021] [Indexed: 02/07/2023] Open
Abstract
Highly social species are successful because they cooperate in obligately integrated societies. We examined temporal genetic variation in the eusocial wasp Vespula maculifrons to gain a greater understanding of evolution in highly social taxa. First, we wished to test if effective population sizes of eusocial species were relatively low due to the reproductive division of labor that characterizes eusocial taxa. We thus estimated the effective population size of V. maculifrons by examining temporal changes in population allele frequencies. We sampled the genetic composition of a V. maculifrons population at 3 separate timepoints spanning a 13-year period. We found that effective population size ranged in the hundreds of individuals, which is similar to estimates in other, non-eusocial taxa. Second, we estimated levels of polyandry in V. maculifrons in different years to determine if queen mating system varied over time. We found no significant change in the number or skew of males mated to queens. In addition, mating skew was not significant within V. maculifrons colonies. Therefore, our data suggest that queen mate number may be subject to stabilizing selection in this taxon. Overall, our study provides novel insight into the selective processes operating in eusocial species by analyzing temporal genetic changes within populations.
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Affiliation(s)
- Carl J Dyson
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA
| | - Olivia L Piscano
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA
| | - Rebecca M Durham
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA
| | - Veronica J Thompson
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA
| | - Catherine H Johnson
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA
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Jara L, Ruiz C, Martín-Hernández R, Muñoz I, Higes M, Serrano J, De la Rúa P. The Effect of Migratory Beekeeping on the Infestation Rate of Parasites in Honey Bee ( Apis mellifera) Colonies and on Their Genetic Variability. Microorganisms 2020; 9:microorganisms9010022. [PMID: 33374609 PMCID: PMC7822443 DOI: 10.3390/microorganisms9010022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/18/2020] [Accepted: 12/18/2020] [Indexed: 11/17/2022] Open
Abstract
Migratory beekeeping is a widely extended practice aimed at increasing the yield of products and pollination services of honey bee colonies. However, it represents a stress factor, as it facilitates the dissemination of diseases and may compromise the genetic identity of the colonies involved. To analyze the extent of these effects, pathogens infestation rate and genetic composition were monitored in a field experiment comparing stationary and migratory colonies sharing the same environmental conditions but differing in management (stationary vs. migratory) and genetic background. We studied the pathogens infestation rate (Varroa destructor, Nosema spp., and Deformed Wing Virus (DWV)) at four different times: before migratory operation, two weeks later, at the end of the migratory period, and two weeks after the return of the migratory hives. An increased incidence of V. destructor and Nosema ceranae and a lower DWV viral load were found in migratory colonies. Temporary changes in genetic diversity were detected regardless of colony type, suggesting that stressors other than management affect the genetic diversity of the colonies. Our study demonstrates that migratory practices have variable effects on the health and genetic diversity of honey bee colonies, which should be taken into account for the development of sustainable beekeeping.
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Affiliation(s)
- Laura Jara
- Departamento de Zoología y Antropología Física, Facultad de Veterinaria, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain; (L.J.); (C.R.); (I.M.); (J.S.)
| | - Carlos Ruiz
- Departamento de Zoología y Antropología Física, Facultad de Veterinaria, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain; (L.J.); (C.R.); (I.M.); (J.S.)
- Departamento de Biología Animal, Edafología y Geología, Universidad de La Laguna, 38206 La Laguna, Spain
| | - Raquel Martín-Hernández
- IRIAF, Instituto Regional de Investigación y Desarrollo Agroalimentario y Forestal, Laboratorio de Patología Apícola, Centro de Investigación Apícola y Agroambiental (CIAPA), Consejería de Agricultura de la Junta de Comunidades de Castilla-La Mancha, 19180 Marchamalo, Spain; (R.M.-H.); (M.H.)
- Instituto de Recursos Humanos para la Ciencia y la Tecnología (INCRECYT, ESF), Fundación Parque Científico y Tecnológico de Albacete, 02006 Albacete, Spain
| | - Irene Muñoz
- Departamento de Zoología y Antropología Física, Facultad de Veterinaria, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain; (L.J.); (C.R.); (I.M.); (J.S.)
| | - Mariano Higes
- IRIAF, Instituto Regional de Investigación y Desarrollo Agroalimentario y Forestal, Laboratorio de Patología Apícola, Centro de Investigación Apícola y Agroambiental (CIAPA), Consejería de Agricultura de la Junta de Comunidades de Castilla-La Mancha, 19180 Marchamalo, Spain; (R.M.-H.); (M.H.)
| | - José Serrano
- Departamento de Zoología y Antropología Física, Facultad de Veterinaria, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain; (L.J.); (C.R.); (I.M.); (J.S.)
| | - Pilar De la Rúa
- Departamento de Zoología y Antropología Física, Facultad de Veterinaria, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain; (L.J.); (C.R.); (I.M.); (J.S.)
- Correspondence: ; Tel.: +34-868-884-908
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