Results 11 to 20 of about 11,267,652 (394)

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

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

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

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

Sex and Pubertal Differences in the Type 1 Interferon Pathway Associate With Both X Chromosome Number and Serum Sex Hormone Concentration. [PDF]

open access: yesFront Immunol, 2018
Type 1 interferons (IFN) are an antiviral cytokine family, important in juvenile onset systemic lupus erythematosus (jSLE) which is more common in females, around puberty.
Webb K   +11 more
europepmc   +2 more sources

Genome Size and Karyotype Studies in Five Species of Lantana (Verbenaceae)

open access: yesHortScience, 2021
Lantana species are an important component of the U.S. environmental horticulture industry. The most commonly produced and used species are L. camara and, on a smaller scale, L. montevidensis. Both were introduced to the United States from Central and/or
S. Brooks Parrish   +2 more
doaj   +1 more source

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