ArticleChromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology2005
Avian genomes: different karyotypes but a similar distribution of the GC-richest chromosome regions at interphase.
Article in Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed.
- Evolution of chromosomes and nuclear architectures of amniotes.Nature communications · 2025Article
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- Fourth Report on Chicken Genes and Chromosomes 2022.Cytogenetic and genome research · 2022Review
- Chromosomal Rearrangements and Altered Nuclear Organization: Recent Mechanistic Models in Cancer.Cancers · 2021Review
- Why Do Some Vertebrates Have Microchromosomes?Cells · 2021Review
- A new emu genome illuminates the evolution of genome configuration and nuclear architecture of avian chromosomes.Genome research · 2021Article
- Patterns of microchromosome organization remain highly conserved throughout avian evolution.Chromosoma · 2019Article
- But where did the centromeres go in the chicken genome models?Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2018Review
- Banding cytogenetics of the Barbary partridgeComparative cytogenetics · 2018Article
- The Anolis Lizard Genome: An Amniote Genome without Isochores?Genome biology and evolution · 2016Article
- Genomic resources for the endangered Hawaiian honeycreepers.BMC genomics · 2014Article
- Intra-genomic GC heterogeneity in sauropsids: evolutionary insights from cDNA mapping and GC(3) profiling in snake.BMC genomics · 2012Article
- USF binding sequences from the HS4 insulator element impose early replication timing on a vertebrate replicator.PLoS biology · 2012Article
- Article
- Three-dimensional positioning of genes in mouse cell nuclei.Chromosoma · 2008Article
- The radial arrangement of the human chromosome 7 in the lymphocyte cell nucleus is associated with chromosomal band gene density.Chromosoma · 2008Article
- Replication-timing-correlated spatial chromatin arrangements in cancer and in primate interphase nuclei.Journal of cell science · 2008Article
- Evolutionarily conserved, cell type and species-specific higher order chromatin arrangements in interphase nuclei of primates.Chromosoma · 2007Article
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6 authors.
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Abstract
The chicken karyotype, like that of the vast majority of avian species, shows a large number of dot-shaped microchromosomes that are characterized, like most telomeric regions of the macrochromosomes, by the highest GC levels and the highest gene densities. In interphase nuclei, these gene-dense regions are centrally located, and are characterized by an open chromatin structure (a similar situation also exists in mammals). Avian species belonging to the Accipitridae family (diurnal raptors) show a karyotype with no very large chromosomes, and with only a very small number of microchromosomes. To identify the GC-rich (and gene-rich) regions of the chromosomes and nuclei from Accipitridae, we performed heterologous in-situ hybridizations using chicken GC-richest isochores as probes. Our results clearly show that the gene-rich regions are prevalently located in the few microchromosome pairs and in the telomeric regions of the middle-sized chromosomes, as well as in the interior of the interphase nuclei. This result is consistent with a common organization of the genome in the nuclei of warm-blooded vertebrates. Indeed, in spite of the different size and morphology of the chromosomes, the gene-dense regions are always located in the interior of the nuclei.
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