Abstract
We investigated the fine genetic structure of colonies of the ant, Leptothorax acervorum, to examine how queens share parentage (skew) in a social insect with multiple queens (polygyny). Overall, 494 individuals from eight polygynous field colonies were typed at up to seven microsatellite loci each. The first main finding was that surprisingly many sexual progeny (60% of young queens and 49% of young males) were not the offspring of the extant queens within their colonies. This implies that a high turnover (brief reproductive lifespan) of queens within colonies could be an important feature of polygyny. The second main result was that in most colonies relatedness among sexual progeny fell significantly below that expected among full siblings, proving that these progeny were produced by more than one singly-mated queen, but that skew in two colonies where the data permitted its calculation was moderate to high. However, relative to a German population, the study population is characterized by low queen-queen relatedness and low skew in female production, which is in line with the predictions of skew theory.
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Selected References
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- Bruford M. W., Wayne R. K. Microsatellites and their application to population genetic studies. Curr Opin Genet Dev. 1993 Dec;3(6):939–943. doi: 10.1016/0959-437x(93)90017-j. [DOI] [PubMed] [Google Scholar]
- Callen D. F., Thompson A. D., Shen Y., Phillips H. A., Richards R. I., Mulley J. C., Sutherland G. R. Incidence and origin of "null" alleles in the (AC)n microsatellite markers. Am J Hum Genet. 1993 May;52(5):922–927. [PMC free article] [PubMed] [Google Scholar]
- Coote T., Bruford M. W. Human microsatellites applicable for analysis of genetic variation in apes and Old World monkeys. J Hered. 1996 Sep-Oct;87(5):406–410. doi: 10.1093/oxfordjournals.jhered.a023026. [DOI] [PubMed] [Google Scholar]
- Dobrzański J. Contribution to the ethology of Leptothorax acervorum (Hymenoptera: Formicidae). Acta Biol Exp (Warsz) 1966;26(1):71–78. [PubMed] [Google Scholar]
- Evans J. D. Parentage analyses in ant colonies using simple sequence repeat loci. Mol Ecol. 1993 Dec;2(6):393–397. doi: 10.1111/j.1365-294x.1993.tb00032.x. [DOI] [PubMed] [Google Scholar]
- Gertsch P., Pamilo P., Varvio S. L. Microsatellites reveal high genetic diversity within colonies of Camponotus ants. Mol Ecol. 1995 Apr;4(2):257–260. doi: 10.1111/j.1365-294x.1995.tb00216.x. [DOI] [PubMed] [Google Scholar]
- Hamaguchi K., Itô Y., Takenaka O. GT dinucleotide repeat polymorphisms in a polygynous ant, Leptothorax spinosior and their use for measurement of relatedness. Naturwissenschaften. 1993 Apr;80(4):179–181. doi: 10.1007/BF01226379. [DOI] [PubMed] [Google Scholar]
- Paxton R. J., Thorén P. A., Tengö J., Estoup A., Pamilo P. Mating structure and nestmate relatedness in a communal bee, Andrena jacobi (Hymenoptera, Andrenidae), using microsatellites. Mol Ecol. 1996 Aug;5(4):511–519. doi: 10.1111/j.1365-294x.1996.tb00343.x. [DOI] [PubMed] [Google Scholar]
- Peters J. M., Queller D. C., Strassmann J. E., Solís C. R. Maternity assignment and queen replacement in a social wasp. Proc Biol Sci. 1995 Apr 22;260(1357):7–12. doi: 10.1098/rspb.1995.0052. [DOI] [PubMed] [Google Scholar]
- Stille M., Stille B. Intrapopulation nestclusters of maternal mtDNA lineages in the polygynous ant Leptothorax acervorum (Hymenoptera: Formicidae). Insect Mol Biol. 1993;1(3):117–121. doi: 10.1111/j.1365-2583.1993.tb00112.x. [DOI] [PubMed] [Google Scholar]