Results 11 to 20 of about 19,041 (213)

Chromosome Diversity and Evolution of the Endemic Malagasy Velvet Geckos of the Genus Blaesodactylus (Reptilia, Gekkonidae)

Animals, 2023
We performed a molecular and phylogenetic analysis and a comparative cytogenetic study with standard karyotyping, silver staining (Ag-NOR) and sequential C-banding + Giemsa, + fluorochromes on several Blaesodactylus samples.
Marcello Mezzasalma, Elvira Brunelli, Gaetano Odierna, Fabio Maria Guarino   +3 more
doaj   +1 more source

An updated explanation of ancestral karyotype changes and reconstruction of evolutionary trajectories to form Camelina sativa chromosomes

BMC Genomics, 2020
Background Belonging to lineage I of Brassicaceae, Camelina sativa is formed by two hybridizations of three species (three sub-genomes). The three sub-genomes were diverged from a common ancestor, likely derived from lineage I (Ancestral Crucifer ...
Zhikang Zhang, Fanbo Meng, Pengchuan Sun, Jiaqing Yuan, Ke Gong, Chao Liu, Weijie Wang, Xiyin Wang   +7 more
doaj   +1 more source

Cluster analysis of karyotype similarity coefficients in Epimedium (Berberidaceae): insights in the systematics and evolution [PDF]

PhytoKeys, 2020
In order to evaluate the genome evolution and systematics, karyotype analysis of mitotic metaphase chromosomes in 51 taxa of Epimedium and two species of Vancouveria was conducted.
Lin-Jiao Wang, Meng-Di Gao, Mao-Yin Sheng, Jie Yin   +3 more
doaj   +3 more sources

Direction of karyotype evolution in the bug family Nabidae (Heteroptera): New evidence from 18S rDNA analysis

European Journal of Entomology, 2007
The bug family Nabidae (Heteroptera) includes taxa showing either a low chromosome number 2n = 16 + XY or high chromosome numbers 2n = 26 or 32 + XY.
Christina NOKKALA, Valentina KUZNETSOVA, Snejana GROZEVA, Seppo NOKKALA   +3 more
doaj   +1 more source

Detecting Mechanisms of Karyotype Evolution in Heterotaxis (Orchidaceae). [PDF]

PLoS ONE, 2016
The karyotype is shaped by different chromosome rearrangements during species evolution. However, determining which rearrangements are responsible for karyotype changes is a challenging task and the combination of a robust phylogeny with refined ...
Ana Paula Moraes, André Olmos Simões, Dario Isidro Ojeda Alayon, Fábio de Barros, Eliana Regina Forni-Martins   +4 more
doaj   +1 more source

A new view on the scenario of karyotypic stasis in Epinephelidae fish: Cytogenetic, historical, and biogeographic approaches

Genetics and Molecular Biology, 2021
Epinephelidae (groupers) is an astonishingly diverse group of carnivorous fish widely distributed in reef environments around the world, with growing economic importance.
Karlla Danielle Jorge Amorim, Gideão Wagner Werneck Félix da Costa, Marcelo de Bello Cioffi, Alongklod Tanomtong, Luiz Antônio Carlos Bertollo, Wagner Franco Molina   +5 more
doaj   +1 more source

Karyotype Analysis of Gazania rigens Varieties

Horticultural Plant Journal, 2016
For studying species origin, systematic evolution and phylogenetic relationship of Gazania rigens, four different G. rigens varieties, with different flower colors, were subjected to chromosome karyotype analysis.
Jiashi Zeng, Dongxu Wang, Yangqing Wu, Xiaoyu Guo, Yazhou Zhang, Xiaoping Lu   +5 more
doaj   +1 more source

Evolutionary mechanisms of runaway chromosome number change in Agrodiaetus butterflies

Scientific Reports, 2017
Despite predictions of the classic, hybrid-sterility model of chromosomal speciation, some organisms demonstrate high rate of karyotype evolution. This rate is especially impressive in Agrodiaetus butterflies that rapidly evolved the greatest chromosome ...
Alisa O. Vershinina, Vladimir A. Lukhtanov   +1 more
doaj   +1 more source

Blattodea Karyotype Database

European Journal of Entomology, 2021
We present an open (publicly available) and updatable database of the karyotypes of Blattodea which is available at http://web.natur.cuni.cz/zoologie/arthropods/blattodeadatabase/index.html. This database currently contains data on chromosome numbers and
Marek JANKÁSEK, Zuzana KOTYKOVÁ VARADÍNOVÁ, František ŠŤÁHLAVSKÝ   +2 more
doaj   +1 more source

Karyomorphometry on three polyploid species of Arum L. (Araceae, Aroideae)

Comparative Cytogenetics, 2014
In this study three polyploid Arum Linnaeus, 1753 species from Southern Italy were chromosomally investigated. Arum italicum Miller, 1768 was found to have 2n = 84 chromosomes and a karyotype composed of numerous asymmetric chromosomes.
Alessio Turco, Pietro Medagli, Antonella Albano, Saverio D'Emerico   +3 more
doaj   +1 more source