Abstract
Heterozygosity at loci affecting resistance against parasites can benefit host fitness. We predict that, in haplodiploid species, haploid males will suffer decreased parasite resistance relative to diploid females. We suggest that elevated susceptibility in haploid males has shaped the evolution of social behaviour in haplodiploid species. Male susceptibility will select for behavioural adaptations that limit males' exposure to pathogens and that limit male transmission of pathogens within and between colonies. The relatedness-asymmetry hypothesis that has been advanced to explain female-only workers does not make these predictions. We review the relevant evidence for genetic effects on parasite resistance in insects and summarize empirical evidence that relates to the haploid-susceptibility hypothesis.
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Selected References
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- Cameron S. A. Brood care by male bumble bees. Proc Natl Acad Sci U S A. 1985 Oct;82(19):6371–6373. doi: 10.1073/pnas.82.19.6371. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hamilton W. D., Axelrod R., Tanese R. Sexual reproduction as an adaptation to resist parasites (a review). Proc Natl Acad Sci U S A. 1990 May;87(9):3566–3573. doi: 10.1073/pnas.87.9.3566. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hamilton W. D. The genetical evolution of social behaviour. II. J Theor Biol. 1964 Jul;7(1):17–52. doi: 10.1016/0022-5193(64)90039-6. [DOI] [PubMed] [Google Scholar]
- Kolmer K., Heinze J. Rank orders and division of labour among unrelated cofounding ant queens. Proc Biol Sci. 2000 Sep 7;267(1454):1729–1734. doi: 10.1098/rspb.2000.1202. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lewis K. Pathogen resistance as the origin of kin altruism. J Theor Biol. 1998 Jul 27;193(2):359–363. doi: 10.1006/jtbi.1998.0725. [DOI] [PubMed] [Google Scholar]
- doi: 10.1098/rspb.1998.0469. [DOI] [PMC free article] [Google Scholar]
- Tarpy David R. Genetic diversity within honeybee colonies prevents severe infections and promotes colony growth. Proc Biol Sci. 2003 Jan 7;270(1510):99–103. doi: 10.1098/rspb.2002.2199. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Traniello James F. A., Rosengaus Rebeca B., Savoie Keely. The development of immunity in a social insect: evidence for the group facilitation of disease resistance. Proc Natl Acad Sci U S A. 2002 May 14;99(10):6838–6842. doi: 10.1073/pnas.102176599. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Wiernasz D. C., Sater A. K., Abell A. J., Cole B. J. Male size, sperm transfer, and colony fitness in the western harvester ant, Pogonomyrmex occidentalis. Evolution. 2001 Feb;55(2):324–329. doi: 10.1111/j.0014-3820.2001.tb01297.x. [DOI] [PubMed] [Google Scholar]