... = 52 to 2n = 78, most reports have relied solely on analyses by conventional staining. As most species have similar macrochromosomes, some authors propose that karyotype evolution involves mainly fusions between microchromosomes, which are highly variable in species with different diploid numbers...

... chromosome evolution in vertebrates. Reptile karyotypes are also unique, as being the only vertebrate group where the majority of the species possess variable numbers of macro- and microchromosomes, which was first reported for iguanids and teiids in 1921. In addition, many reptiles have microchromosomes...

... chromosomes offer a convenient tool for cytogenetic mapping and, in particular, have been instrumental in mapping genes and linkage groups on chicken (GGA) chromosomes. Whereas cytogenetic maps of macrochromosome GGA1-10 and microchromosome GGA11-16 lampbrush bivalents have been established, identification...

..., instructions or products referred to in the content or advertisements. Acipenser GISH Hybridization Macrochromosomes Microchromosomes Polyploidy Sturgeons and paddlefishes (Acipenseriformes: Acipenseridae and Polyodontidae) are bony fishes representing very basal lineages of ray-finned...

... within the class of Aves, due to an extremely low diploid number (2n = 42) and only 6 pairs of microchromosomes in its complement. This distinct deviation from the ‘typical’ avian karyotype is attributed to repeated fusions of ancestral microchromosomes. In order to compare different species...