GENETIC REGULATION OF COLONY SOCIAL ORGANIZATION IN FIRE ANTS: AN INTEGRATIVE OVERVIEW

@article{Gotzek2007GENETICRO,
  title={GENETIC REGULATION OF COLONY SOCIAL ORGANIZATION IN FIRE ANTS: AN INTEGRATIVE OVERVIEW},
  author={Dietrich Gotzek and Kenneth G. Ross},
  journal={The Quarterly Review of Biology},
  year={2007},
  volume={82},
  pages={201 - 226}
}
Expression of colony social organization in fire ants appears to be under the control of a single Mendelian factor of large effect. Variation in colony queen number in Solenopsis invicta and its relatives is associated with allelic variation at the gene Gp‐9, but not with variation at other unlinked genes; workers regulate queen identity and number on the basis of Gp‐9 genotypic compatibility. Nongenetic factors, such as prior social experience, queen reproductive status, and local environment… 
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TLDR
In depth, functional molecular genetic analysis in fire ants and comparative genomics in other closely related socially polymorphic species will be required to resolve the evolutionary question whether the genes incorporated first into the social supergene were those for social adaptation, selfish genetic drive, or something else.
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References

SHOWING 1-10 OF 168 REFERENCES
ECOLOGY AND EVOLUTION OF SOCIAL ORGANIZATION: Insights from Fire Ants and Other Highly Eusocial Insects
TLDR
Evolution of social organization can be important in generating intrinsic selective regimes that channel subsequent social evolution and in initiating the development of significant population genetic structure, including barriers to gene flow important in cladogenesis.
Genetic control of social organization in an ant.
  • K. Ross, L. Keller
  • Biology, Medicine
    Proceedings of the National Academy of Sciences of the United States of America
  • 1998
TLDR
Findings reveal how a single genetic factor can have major effects on complex social behavior and influence the nature of social organization in the fire ant Solenopsis invicta.
Experimental Conversion of Colony Social Organization in Fire Ants (Solenopsis invicta): Worker Genotype Manipulation in the Absence of Queen Effects
TLDR
The results support the conclusion that polygyny in S. invicta is induced by a minimum frequency of colony workers carrying the b allele, and confirm that its expression is independent of queen genotype or history, worker genotypes at genes not linked to Gp-9, and colony genetic diversity.
Experimental conversion of colony social organization by manipulation of worker genotype composition in fire ants (Solenopsis invicta)
TLDR
The prediction that colony social organization in this ant can be altered by manipulating adult worker genotype compositions is confirmed and support the hypothesis that the expression of polygyny requires the presence of adult workers bearing the b allele at Gp-9.
Phenotypic Basis of Reproductive Success in a Social Insect: Genetic and Social Determinants
TLDR
There is a counterintuitive relation between the potential and realized reproductive success of queens in multiple-queen societies of this ant, which is an unusual example of genotype-environment interaction in gene expression in which the environmental component is the social environment.
The genetics of social behavior in a polygynous ant
TLDR
It is demonstrated that intracolony genetic variability exerts a pronounced influence on worker division of labor in polygynous colonies of the ant Formica argentea.
Identification of a Major Gene Regulating Complex Social Behavior
TLDR
It is shown that single genes of major effect can underlie the expression of complex behaviors important in social evolution, and regulation of social organization by Gp-9 is conserved in South American fire ant species exhibiting social polymorphism.
Multilocus evolution in fire ants: effects of selection, gene flow and recombination.
  • K. Ross
  • Biology, Medicine
    Genetics
  • 1997
TLDR
Evidence is presented that selection acting independently on Pgm-3 and Gp-9, in conjunction with gene flow from the alternate, "monogyne" social form of this species, may explain the origin of disequilibrium between the two loci in polygyne fire ants.
Alternative genetic foundations for a key social polymorphism in fire ants.
TLDR
It is found that Gp-9 coding region sequences are identical in the polygyne and monogyne forms of this species, disproving the hypothesis that one or a few specific amino acid replacements in the protein are necessary to induce transitions in social organization in fire ants.
Potential cause of lethality of an allele implicated in social evolution in fire ants
TLDR
Data are consistent with the hypothesis that the Lys151 residue in GP-9 protein confers the deleterious effects of the b allele in homozygous condition, possibly by impairing the protein’s function through interference with ligand binding/release or hindrance of dimer formation.
...
1
2
3
4
5
...