Results 11 to 20 of about 803,632 (356)

Chromosome number evolution in skippers (Lepidoptera, Hesperiidae)

open access: yesComparative Cytogenetics, 2014
Lepidoptera (butterflies and moths), as many other groups of animals and plants, simultaneously represent preservation of ancestral karyotype in the majority of families with a high degree of chromosome number instability in numerous independently ...
Vladimir Lukhtanov
doaj   +2 more sources

Chromosome number evolves at equal rates in holocentric and monocentric clades. [PDF]

open access: yesPLoS Genet, 2020
Despite the fundamental role of centromeres two different types are observed across plants and animals. Monocentric chromosomes possess a single region that function as the centromere while in holocentric chromosomes centromere activity is spread across ...
Ruckman SN   +3 more
europepmc   +2 more sources

Chromosome number is key to longevity of polyploid lineages.

open access: yesNew Phytologist, 2021
Polyploidy is ubiquitous and often recursive in plant lineages, most frequently resulting in extinction but occasionally associated with great evolutionary success.
J. Bowers, A. Paterson
semanticscholar   +1 more source

Macroevolutionary insights into sedges (Carex: Cyperaceae): The effects of rapid chromosome number evolution on lineage diversification

open access: yesJournal of Systematics and Evolution, 2021
Changes in holocentric chromosome number due to fission and fusion have direct and immediate effects on genome structure and recombination rates. These, in turn, may influence ecology and evolutionary trajectories profoundly.
J. I. Márquez‐Corro   +8 more
semanticscholar   +1 more source

A deep dive into the ancestral chromosome number and genome size of flowering plants.

open access: yesNew Phytologist, 2020
Chromosome number and genome variation in flowering plants has stimulated a blossoming number of speculations about the ancestral chromosome number of angiosperms, but estimates so far remain equivocal.
A. Carta, G. Bedini, L. Peruzzi
semanticscholar   +2 more sources

Variation in genome size, cell and nucleus volume, chromosome number and rDNA loci among duckweeds. [PDF]

open access: yesSci Rep, 2019
Duckweeds are small, free-floating, largely asexual and highly neotenous organisms. They display the most rapid growth among flowering plants and are of growing interest in aquaculture and genome biology.
Hoang PTN   +4 more
europepmc   +2 more sources

Unscrambling phylogenetic effects and ecological determinants of chromosome number in major angiosperm clades. [PDF]

open access: yesSci Rep, 2018
As variations in the chromosome number are recognized to be of evolutionary interest but are also widely debated in the literature, we aimed to quantitatively test for possible relationships among the chromosome number, plant traits, and environmental ...
Carta A, Bedini G, Peruzzi L.
europepmc   +2 more sources

THE CHROMOSOME NUMBER OF MAIZE [PDF]

open access: yesGenetics, 1925
The wide-spread interest in the genetics of maize, coupled with the uncertainty as to the number of chromosomes occurring in this species prompted the investigation which is here reported. From a review of the literature it appears that Kuwada (1911, 1915, 1919) is the only worker who has reported extensive counts of maize chromosomes.
Kiesselbach, T. A., Petersen, N. F.
openaire   +2 more sources

Evolutionary mechanisms of runaway chromosome number change in Agrodiaetus butterflies. [PDF]

open access: yesSci Rep, 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 ...
Vershinina AO, Lukhtanov VA.
europepmc   +2 more sources

Cytogenetic Studies in Turkey: Fishes (Vertebrata, Pisces)

open access: yesTurkish Journal of Bioscience and Collections, 2021
In Turkey surrounded by sea on three sides and hundreds of freshwater resources, it was reported that there is a total of 903 species of fish including freshwater and marine species. In the last thirty-five years in Turkish fish cytogenetics, 103 species/
Serkan Saygun
doaj   +1 more source

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