Sexual reproduction is the primary mode of reproduction in eukaryotes, but some organisms
have evolved deviations from classical sex and switched to asexuality. These asexual …

Polyploidization is a rare yet sometimes successful way for animals to rapidly create geno‐
and phenotypes that may colonize new habitats and quickly adapt to environmental …

The western Palaearctic water frogs in the genus Pelophylax comprise several distinct
species and three hybridogenetic hybrid forms. In this study, we focus on the Pelophylax …

Background Sexual parasites offer unique insights into the reproduction of unisexual and
sexual populations. Because unisexuality is almost exclusively linked to the female sex …

Water frogs of the genus Pelophylax host a variety of parasites, from protozoa to helminths.
Among the blood parasites, representatives of Apicomplexa, Trypanosoma and Nematoda …

Interspecific hybridization can disrupt canonical gametogenic pathways, leading to the
emergence of clonal and hemiclonal organisms. Such gametogenic alterations usually …

Meiosis is a conservative process in all sexual organisms which ensures fertility and is
central for producing genetic diversity by recombination and random segregation of parental …

Pelophylax esculentus is a vertebrate animal with hemiclonal heredity, attracting the interest
of many reproductive and evolutionary biologists. It is a hybrid between P. ridibundus and P …

Background Fish may display variations in ploidy, including three sets of chromosomes,
known as triploidy. A recent study revealed a frequency of~ 2% spontaneous (ie, non …

Previous studies have shown that assortative mating acts as a driver of speciation by
countering hybridization between two populations of the same species (pre-zygotic …