ArticleChromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology2007
The molecular basis of chromosome orthologies and sex chromosomal differentiation in palaeognathous birds.
Article in Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.
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65 citing papers in PubMed, 119 citations in OpenAlex.
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- Sex chromosome cycle as a mechanism of stable sex determination.Journal of biochemistry · 2024Review
- Evolution of bird sex chromosomes: a cytogenomic approach in Palaeognathae species.BMC ecology and evolution · 2024Article
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- MicrosatNavigator: exploring nonrandom distribution and lineage-specificity of microsatellite repeat motifs on vertebrate sex chromosomes across 186 whole genomes.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2023Article
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- Why Do Some Vertebrates Have Microchromosomes?Cells · 2021Review
- Analysis of multiple chromosomal rearrangements in the genome of Willisornis vidua using BAC-FISH and chromosome painting on a supposed conserved karyotype.BMC ecology and evolution · 2021Article
- Chromosomal Analysis inCells · 2020Article
- Transcriptome analysis revealed misregulated gene expression in blastoderms of interspecific chicken and Japanese quail F1 hybrids.PloS one · 2020Article
- The molecular cytogenetic characterization of Conopophaga lineata indicates a common chromosome rearrangement in the Parvorder Furnariida (Aves, Passeriformes).Genetics and molecular biology · 2020Article
- Comparative chromosome painting in hummingbirds (Trochilidae).Genetics and molecular biology · 2020Article
- The distribution of 45S rDNA sites in bird chromosomes suggests multiple evolutionary histories.Genetics and molecular biology · 2020Article
- Novel insights into chromosome evolution of Charadriiformes: extensive genomic reshuffling in the wattled jacana (Jacana jacana, Charadriiformes, Jacanidae).Genetics and molecular biology · 2020Article
- Patterns of microchromosome organization remain highly conserved throughout avian evolution.Chromosoma · 2019Article
5 more citing papers are in PubMed but not listed here.
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7 authors at 3 institutions in 2 countries.
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Abstract
Palaeognathous birds (Struthioniformes and Tinamiformes) have morphologically conserved karyotypes and less differentiated ZW sex chromosomes. To delineate interspecific chromosome orthologies in palaeognathous birds we conducted comparative chromosome painting with chicken (Gallus gallus, GGA) chromosome 1-9 and Z chromosome paints (GGA1-9 and GGAZ) for emu, double-wattled cassowary, ostrich, greater rhea, lesser rhea and elegant crested tinamou. All six species showed the same painting patterns: each probe was hybridized to a single pair of chromosomes with the exception that the GGA4 was hybridized to the fourth largest chromosome and a single pair of microchromosomes. The GGAZ was also hybridized to the entire region of the W chromosome, indicating that extensive homology remains between the Z and W chromosomes on the molecular level. Comparative FISH mapping of four Z- and/or W-linked markers, the ACO1/IREBP, ZOV3 and CHD1 genes and the EE0.6 sequence, revealed the presence of a small deletion in the proximal region of the long arm of the W chromosome in greater rhea and lesser rhea. These results suggest that the karyotypes and sex chromosomes of palaeognathous birds are highly conserved not only morphologically, but also at the molecular level; moreover, palaeognathous birds appear to retain the ancestral lineage of avian karyotypes.
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