Results 31 to 40 of about 42,553 (305)

Molecular cytogenetic differentiation of paralogs of Hox paralogs in duplicated and re-diploidized genome of the North American paddlefish (Polyodon spathula). [PDF]

open access: yes, 2017
BackgroundAcipenseriformes is a basal lineage of ray-finned fishes and comprise 27 extant species of sturgeons and paddlefishes. They are characterized by several specific genomic features as broad ploidy variation, high chromosome numbers, presence of ...
Amemiya, Chris T   +7 more
core   +4 more sources

Evolutionary mechanisms of runaway chromosome number change in Agrodiaetus butterflies

open access: yesScientific 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   +1 more
doaj   +1 more source

Karyotype Analysis of Gazania rigens Varieties

open access: yesHorticultural 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   +5 more
doaj   +1 more source

Blattodea Karyotype Database

open access: yesEuropean 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   +2 more
doaj   +1 more source

Clonal karyotype evolution involving ring chromosome 1 with myelodysplastic syndrome subtype RAEB-t progressing into acute leukemia [PDF]

open access: yes, 2006
s Karyotypic evolution is a well-known phenomenon in patients with malignant hernatological disorders during disease progression. We describe a 50-year-old male patient who had originally presented with pancytopenia in October 1992.
Bennett JM   +46 more
core   +1 more source

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

open access: yesComparative 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   +3 more
doaj   +1 more source

Chromosomes of Eupristina verticillata Waterston, 1921 and an overview of known karyotypes of chalcid wasps of the family Agaonidae (Hymenoptera) [PDF]

open access: yesJournal of Hymenoptera Research, 2019
The karyotype of Eupristina verticillata Waterston, 1921 (Agaonidae) from Italy was studied for the first time using chromosome morphometrics. The present study showed that this species has n = 6 and 2n = 12, with five larger metacentrics and a smaller ...
Vladimir E. Gokhman   +2 more
doaj   +3 more sources

Tracking the Evolutionary Trends Among Small-Size Fishes of the Genus Pyrrhulina (Characiforme, Lebiasinidae): New Insights From a Molecular Cytogenetic Perspective

open access: yesFrontiers in Genetics, 2021
Miniature fishes have always been a challenge for cytogenetic studies due to the difficulty in obtaining chromosomal preparations, making them virtually unexplored.
Renata Luiza Rosa de Moraes   +12 more
doaj   +1 more source

Multicolor chromosome bar codes [PDF]

open access: yes, 2006
Chromosome bar codes are multicolor banding patterns produced by fluorescence in situ hybridization (FISH) with differentially labeled and pooled sub-regional DNA probes.
Müller, Stefan, Wienberg, Johannes
core   +1 more source

Investigating the evolutionary dynamics of diploid number variation in Ctenomys (Ctenomyidae, Rodentia) [PDF]

open access: yesGenetics and Molecular Biology
Contrary to predictions from classical hybrid sterility models of chromosomal speciation, some organisms display high rates of karyotype variation. Ctenomys are the current mammals with the greatest interspecific and intraspecific chromosomal variation ...
Thays Duarte de Oliveira   +1 more
doaj   +1 more source

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