Results 1 to 10 of about 19,041 (213)

Tempo and mode in karyotype evolution revealed by a probabilistic model incorporating both chromosome number and morphology. [PDF]

open access: yesPLoS Genetics, 2021
Karyotype, including the chromosome and arm numbers, is a fundamental genetic characteristic of all organisms and has long been used as a species-diagnostic character.
Kohta Yoshida, Jun Kitano
doaj   +2 more sources

A high-quality Buxus austro-yunnanensis (Buxales) genome provides new insights into karyotype evolution in early eudicots [PDF]

open access: yesBMC Biology, 2022
Background Eudicots are the most diverse group of flowering plants that compromise five well-defined lineages: core eudicots, Ranunculales, Proteales, Trochodendrales, and Buxales.
Zhenyue Wang   +11 more
doaj   +2 more sources

Oligo-barcode illuminates holocentric karyotype evolution in Rhynchospora (Cyperaceae) [PDF]

open access: yesFrontiers in Plant Science
Holocentric karyotypes are assumed to rapidly evolve through chromosome fusions and fissions due to the diffuse nature of their centromeres. Here, we took advantage of the recent availability of a chromosome-scale reference genome for Rhynchospora ...
Yennifer Mata-Sucre   +13 more
doaj   +2 more sources

Dynamic turnover of centromeres drives karyotype evolution in Drosophila [PDF]

open access: yeseLife, 2019
Centromeres are the basic unit for chromosome inheritance, but their evolutionary dynamics is poorly understood. We generate high-quality reference genomes for multiple Drosophila obscura group species to reconstruct karyotype evolution.
Ryan Bracewell   +3 more
doaj   +2 more sources

Karyotype differentiation in the Nothobranchius ugandensis species group (Teleostei, Cyprinodontiformes), seasonal fishes from the east African inland plateau, in the context of phylogeny and biogeography [PDF]

open access: yesComparative Cytogenetics, 2023
The karyotype differentiation of the twelve known members of the Nothobranchius ugandensis Wildekamp, 1994 species group is reviewed and the karyotype composition of seven of its species is described herein for the first time using a conventional ...
Eugene Yu. Krysanov   +4 more
doaj   +3 more sources

Karyotype diversity in the genus Nysius Dallas, 1852 (Hemiptera, Heteroptera, Lygaeidae) is much greater than you might think [PDF]

open access: yesComparative Cytogenetics, 2023
We studied the karyotype and chromosomal distribution of 18S rDNA clustered in nucleolar organizer regions (NORs) in Nysius graminicola (Kolenati, 1845), belonging to the subfamily Orsillinae (Lygaeidae).
Natalia V. Golub   +2 more
doaj   +3 more sources

A comparative karyological study of Helianthemum (Cistaceae): karyotype size, karyotype symmetry and evolution of chromosome number

open access: yesAnales del Jardín Botánico de Madrid, 2023
In this study we assessed karyotype size and symmetry for a comprehensive taxonomic and geographic representation of Helianthemum and reconstructed chromosome number evolution in the genus.
Sara Martín Hernanz   +7 more
doaj   +1 more source

The Ancestral Carnivore Karyotype As Substantiated by Comparative Chromosome Painting of Three Pinnipeds, the Walrus, the Steller Sea Lion and the Baikal Seal (Pinnipedia, Carnivora). [PDF]

open access: yesPLoS ONE, 2016
Karyotype evolution in Carnivora is thoroughly studied by classical and molecular cytogenetics and supplemented by reconstructions of Ancestral Carnivora Karyotype (ACK).
Violetta R Beklemisheva   +6 more
doaj   +1 more source

Comparative chromosome painting in hummingbirds (Trochilidae) [PDF]

open access: yesGenetics and Molecular Biology, 2020
Hummingbirds (Trochilidae) are one of the most enigmatic avian groups, and also among the most diverse, with approximately 360 recognized species in 106 genera, of which 43 are monotypic.
Tiago Marafiga Degrandi   +9 more
doaj   +1 more source

Home - About - Disclaimer - Privacy