A groundbreaking discovery in evolutionary biology has unveiled the astonishing reproductive capabilities of the Iberian harvester ant (Messor ibericus). Researchers from the University of Montpellier, led by biologist Jonathan Romiguier, and publishing in *Nature*, have revealed that M. ibericus queens can clone males of a different species, Messor structor, a feat dubbed 'xenoparous' – giving birth to offspring of a different species.
This extraordinary phenomenon challenges our understanding of reproduction and species boundaries. The study highlights how M. ibericus queens utilize sperm from cloned M. structor males to produce worker ants within their colonies. While interspecies mating isn't uncommon in ants, the distance between M. ibericus and the nearest M. structor colonies (over 400 miles) makes this process truly remarkable. The queens achieve this by a complex process involving the fertilization of their own eggs with the cloned sperm but eliminating their egg's own genetic material to maintain the unfertilized state and producing only the males they need.
The research team analyzed 132 males from 26 M. ibericus colonies in France. Approximately half exhibited the nuclear genome of M. structor and the mitochondria of M. ibericus, confirming the cloning process. This indicates that the M. ibericus queen ants are effectively producing offspring with a genetic composition derived from two species that diverged over five million years ago.
The implications of this discovery are profound. It showcases an unprecedented level of reproductive manipulation within the insect world, forcing a reassessment of our understanding of ant colony organization and evolutionary dynamics. Michael Goodisman, an evolutionary biologist at the Georgia Institute of Technology, not involved in the study, described the finding as 'almost impossible to believe' and a 'surprise' pushing the boundaries of evolutionary biology. Further research is needed to fully elucidate the complex mechanisms underlying this fascinating process.
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Originally published at: https://www.yahoo.com/news/articles/scientists-found-creature-shockingly-gives-180000578.html
