SIMPLE GENETIC BASIS FOR IMPORTANT SOCIAL TRAITS IN THE FIRE ANT SOLENOPSIS INVICTA

@article{Ross1996SIMPLEGB,
  title={SIMPLE GENETIC BASIS FOR IMPORTANT SOCIAL TRAITS IN THE FIRE ANT SOLENOPSIS INVICTA},
  author={Kenneth G. Ross and Edward L. Vargo and Laurent Keller},
  journal={Evolution},
  year={1996},
  volume={50}
}
Variation in queen phenotype and reproductive role in the fire ant Solenopsis invicta has been shown to have a simple genetic basis in a single introduced population in the United States. The evidence consists of an association between this variation and queen genotype at Pgm‐3, a phosphoglucomutase‐encoding gene. In the present study, we surveyed Pgm‐3 allele and genotype frequencies in diverse populations from the native and introduced ranges of this ant to learn whether this simple genetic… Expand
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  • 1997
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Significant differences within nests in the matrilineal composition of worker and queen brood are revealed, constituting further evidence for inequities among nest-mate queens in the allocation of their progeny to the two castes at a single point in time. Expand
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We present evidence that gene flow counteracts directional selection to maintain a high level of polymorphism at Pgm-3, a gene known to have a major effect on reproduction in the population ofExpand
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It is concluded that diploid males have increased in frequency in introduced populations because of a loss of allelic diversity at the sex-determining locus (loci) of S. invicta, which has generated a substantial increase in the estimated segregational genetic load associated with production of sterile diploids males in introducing populations over the load in native populations. Expand
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TLDR
Allele and genotype frequencies at 12 neutral polymorphic protein markers, as well as the numbers of alleles at the sex‐determining locus (loci), are shown here to be consistent with significant ongoing gene flow between two geographically adjacent populations of Solenopsis invicta that differ in colony queen number. Expand
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The existence of a single mendelian factor that strongly influences success in reproductive competition in multiple-queen societies of an ant is reported and a mechanism by which variation is maintained at this gene despite the presence of strong directional selection is proposed. Expand
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TLDR
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TLDR
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