Results 271 to 280 of about 3,010,874 (320)
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Nucleus (India), 2019
Karyotype evolution in cycads has been described in 113 species covering all the 10 genera. Cycads are a conservative group in this regard as the genera with low basic numbers i.e. Dioon, Macrozamia, Lepidozamia, Encephalartos, Bowenia (2n = 18) and Ceratozamia and Stangeria (2n = 16) have relatively symmetrical karyotypes while those with higher ...
S. Rastogi, D. Ohri
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Karyotype evolution in cycads has been described in 113 species covering all the 10 genera. Cycads are a conservative group in this regard as the genera with low basic numbers i.e. Dioon, Macrozamia, Lepidozamia, Encephalartos, Bowenia (2n = 18) and Ceratozamia and Stangeria (2n = 16) have relatively symmetrical karyotypes while those with higher ...
S. Rastogi, D. Ohri
exaly +4 more sources
Karyotype Evolution: Concepts and Applications
, 2017The karyotype is the characterization of number, size, and morphology of the set of chromosomes of a species, as seen under the microscope. Studying the karyotypic evolution of a group of organisms is necessary to obtain data such as number of chromosomes, the position of the centromeres, and the number and positions of secondary constrictions and ...
K. F. M. D. Resende
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Insect molecular biology (Print), 2021
Genome changes, evidenced through karyotype or nuclear genome size data, can result in reproductive isolation, diversification and speciation. The aim of this study was to understand how changes in the karyotype such as chromosome number and nuclear ...
M. S. Cunha +4 more
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Genome changes, evidenced through karyotype or nuclear genome size data, can result in reproductive isolation, diversification and speciation. The aim of this study was to understand how changes in the karyotype such as chromosome number and nuclear ...
M. S. Cunha +4 more
semanticscholar +1 more source
Nature Reviews Genetics, 2007
The chromosome complements (karyotypes) of animals display a great diversity in number and morphology. Against this background, the genomes of all species are remarkably conserved, not only in transcribed sequences, but also in some chromosome-specific non-coding sequences and in gene order.
Malcolm A, Ferguson-Smith +1 more
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The chromosome complements (karyotypes) of animals display a great diversity in number and morphology. Against this background, the genomes of all species are remarkably conserved, not only in transcribed sequences, but also in some chromosome-specific non-coding sequences and in gene order.
Malcolm A, Ferguson-Smith +1 more
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Zoology, 2020
The scorpions represent an ancient and morphologically conserved order of arachnids. Despite that, their karyotypes may differ considerably even among closely related species. In this study, we identify the trends of the karyotype evolution in the family
F. Šťáhlavský +3 more
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The scorpions represent an ancient and morphologically conserved order of arachnids. Despite that, their karyotypes may differ considerably even among closely related species. In this study, we identify the trends of the karyotype evolution in the family
F. Šťáhlavský +3 more
semanticscholar +1 more source
Karyotypic evolution in multiple myeloma
Cancer Genetics and Cytogenetics, 1985A patient with IgG kappa multiple myeloma was studied cytogenetically prior to therapy and was found to have a clone of 55,XX cells. After treatment leading to a clinical response, the patient relapsed with a clone of 57,XX cells, which were derivatives of the original neoplastic cell line.
M R, MacKenzie, J P, Lewis
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A general model of karyotype evolution
Genetica, 1980Gerald Holmquist, Barry M. Dancis
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Subchromosomal karyotype evolution in Equidae
Chromosome Research, 2013Equidae is a small family which comprises horses, African and Asiatic asses, and zebras. Despite equids having diverged quite recently, their karyotypes underwent rapid evolution which resulted in extensive differences among chromosome complements in respective species.
P, Musilova +3 more
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Karyotype evolution in conifers
Feddes Repertorium, 2021AbstractThe present study describes the published karyotypes of 338 conifer taxa comprising of 302 species belonging to 59 genera of conifers. The somatic chromosome numbers range from 2n=18 inPhyllocladus(Podocarpaceae) to 2n=66 inSequoia sempervirens(Cupressaceae).
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American Journal of Primatology, 1983
AbstractGreat karyotypic diversity exists within the platyrrhine genus Aotus. Primarily by comparing banded karyograms of different forms of Aotus, the pattern of karyotypic evolution can be assessed. Out‐group comparisons are used to establish primitive and derived states of particular chromosomes, and a parsimonious cladogram is constructed.
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AbstractGreat karyotypic diversity exists within the platyrrhine genus Aotus. Primarily by comparing banded karyograms of different forms of Aotus, the pattern of karyotypic evolution can be assessed. Out‐group comparisons are used to establish primitive and derived states of particular chromosomes, and a parsimonious cladogram is constructed.
openaire +2 more sources