Fish biology has been developed for more than 100 years, but some important
breakthroughs have been made in the last decade. Early studies commonly concentrated on …

Unreduced gametes (gametes with the somatic chromosome number) are known to facilitate
polyploid formation. Unreduced gametes result from a plethora of different mechanisms …

We review knowledge about the roles of sex chromosomes in vertebrate hybridization and
speciation, exploring a gradient of divergences with increasing reproductive isolation …

Polyploidy has played an important role in evolution across the tree of life but it is still
unclear how polyploid lineages may persist after their initial formation. While both common …

The parthenogenetic all-female marbled crayfish is a novel research model and potent
invader of freshwater ecosystems. It is a triploid descendant of the sexually reproducing …

Most vertebrates reproduce sexually, and plastic sex determination mechanisms including
genotypic sex determination (GSD) and environmental sex determination (ESD) have been …

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 …

Obligate parthenogenesis evolved in reptiles convergently several times, mainly through
interspecific hybridization. The obligate parthenogenetic complexes typically include both …

Polyploidy roles on adaptive evolution and ecological novelty have been extensively studied
in plants but remained unclear in vertebrates owing to the rare polyploidy incidences. Here …

There is a close association between parthenogenesis and polyploidy. For this reason, we
undertook a karyological analysis to test whether the parthenogenetic Marmorkrebs …