Although chromosome rearrangements (CRs) are central to studies of genome evolution,
our understanding of the evolutionary consequences of the early stages of karyotypic …

Rodentia is the most species-rich mammalian order and includes several important
laboratory model species. The amount of new information on karyotypic and phylogenetic …

This study reports on extensive experimental material covering more than 30 years of
studying the genetics of mole voles. Sex chromosomes of Ellobius demonstrate an …

The involvement of chromosome changes in the initial steps of speciation is controversial.
Here we examine diversification trends within the mole voles Ellobius, a group of …

Genome functioning in hybrids faces inconsistency. This mismatch is manifested clearly in
meiosis during chromosome synapsis and recombination. Species with chromosomal …

Evolutionary history and taxonomic position for cryptic species may be clarified by using
molecular and cytogenetic methods. The subterranean rodent, the Alay mole vole …

Synaptonemal complex (SC) chains were revealed in semisterile intraspecific F1 hybrids of
Ellobius tancrei Blasius, 1884 (2n= 49, NF= 56 and 2n= 50, NF= 56), heterozygous for …

Rodents are, taxonomically, the most species-rich mammalian order. They display a series
of special genomic features including the highest karyotypic diversity, frequent occurrence of …

The evolution of heteromorphic sex chromosomes has occurred independently many times
in different lineages. The differentiation of sex chromosomes leads to dramatic changes in …

The basic causes of postzygotic isolation can be elucidated if gametogenesis is studied,
which is a drastically different process in males and females. As a step toward clarifying this …