Evolutionary biologists at Skoltech have discovered recombination in bdelloid rotifers, microscopic freshwater invertebrates characterized by their presumed ancient asexuality. The existence of such anciently asexual groups calls into question the hypothesis that sexual reproduction is indispensable for the long-term evolutionary success of a species. However, the recent study published in Nature Communications provides evidence of recombination and genetic exchange in bdelloids.
source https://phys.org/news/2020-12-genetic-exchange-anciently-asexual-rotifers.html