Intrinsic postzygotic isolation typically appears as reduced viability or fertility of interspecific
hybrids caused by genetic incompatibilities between diverged parental genomes …

Germline-restricted chromosomes (GRCs) are accessory chromosomes that occur only in
germ cells. They are eliminated from somatic cells through programmed DNA elimination …

The germline-restricted chromosome (GRC) is likely present in all songbird species but
differs widely in size and gene content. This extra chromosome has been described as …

Karyotype divergence may strongly affect the degree of hybridization between species.
Western Palearctic slow worms (Anguis) are legless lizards forming different types of …

Great efforts have been made to preserve manatees. Recently, a hybrid zone was described
between Trichechus inunguis (TIN) and the Trichechus manatus manatus (TMM) in the …

The germline-restricted chromosome (GRC) of songbirds represents a taxonomically
widespread example of programmed DNA elimination. Despite its apparent indispensability …

Passerine birds have a supernumerary chromosome in their germ cells called the germline-
restricted chromosome (GRC). The GRC was first discovered more than two decades ago in …

Furnariidae (ovenbirds) is one of the most diversified families in the Passeriformes order and
Suboscines suborder. Despite the great diversity of species, cytogenetic research is still in …

Animal migration is a fascinating phenomenon that has puzzled mankind since the time of
ancient Greece. It is a process widespread across a varied range of taxa and it shines …

Avian cell culture is widely applied for cytogenetic studies, the improvement of which
increasingly allows for the production of high-quality chromosomes, essential to perform …