Clonal reproduction by males and females in the little fire ant

Article Abstract:

A ant species Wasmannia auropunctatain the battle of opposing sexes has evolved as an unusual mode of reproduction with queens circumventing the twofold cost of sexual reproduction by transferring all their genes to the reproductive females while males thwart queens by also clonally transmitting their genomes to sons. The results indicate that male and female genomes are completely segregated and form two distinct genetic lineages.

South America, Sexual behavior, Fire ants

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Extraordinary lifespans in ants: A test of evolutionary theories of ageing

Article Abstract:

The evolution of eusociality is shown to be linked with with a 100-fold rise in insect lifespan. The rise is predicted using evolutionary theories, and further comparisons of ants with contrasting life histories shows a link between lifespan and extrinsic mortality rates. This gives strong support to the evolutionary theories of ageing.

Aging, Behavior, Observations, Ants

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Complex hybrid origin of genetic caste determination in harvester ants

Article Abstract:

Genetic caste determination that evolved in harvester ants populations after complex hybridization events is presented. As a result four distinct genetic lineages, each consisting of unique blends of the genomes of the parental species are identified.

Genomes, Pogonomyrmex, Harvester ants

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