ArticleChromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology2010
A paradox revealed: karyotype evolution in the four-horned antelope occurs by tandem fusion (Mammalia, Bovidae, Tetracerus quadricornis).
Article in Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 19 citations in OpenAlex.
- Karyotype relationships among selected deer species and cattle revealed by bovine FISH probes.PloS one · 2017Article
- Meiotic behaviour of evolutionary sex-autosome translocations in Bovidae.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2016Article
- Comparative cytogenetics of tree frogs of theComparative cytogenetics · 2016Article
- Development of a sequential multicolor-FISH approach with 13 chromosome-specific painting probes for the rapid identification of river buffalo (Bubalus bubalis, 2n = 50) chromosomes.Journal of applied genetics · 2014Article
- Molecular cytogenetic insights to the phylogenetic affinities of the giraffe (Giraffa camelopardalis) and pronghorn (Antilocapra americana).Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2013Article
- Centromere fission, not telomere erosion, triggers chromosomal instability in human carcinomas.Carcinogenesis · 2011Review
- Are ribosomal DNA clusters rearrangement hotspots?: a case study in the genus Mus (Rodentia, Muridae).BMC evolutionary biology · 2011Article
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Authors and funding
9 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The four-horned antelope, Tetracerus quadricornis, is a karyotypic novelty in Bovidae since chromosomal evolution in this species is driven by tandem fusions in contradiction to the overwhelming influence of Robertsonian fusions in other species within the family. Using a combination of differential staining and molecular cytogenetic techniques, we provide the first description of the species' karyotype, draw phylogenetic inferences from the cytogenetic data and discuss possible mechanisms underlying the formation of the tandem fusions in this species. We show (a) that pairs 1-6 of Tetracerus correspond to a combination of Bos taurus orthologous chromosomes that are tandemly fused head to tail, (b) the presence of interstitial centromeric satellite DNA at the junctions of orthologous blocks defined by the cross-species painting data and (c) that in some instances, residual telomeric sequences persist at these sites. We conclude that the attendant result of each fusion is an enlarged acrocentric fusion element comprising a single functional centromere and two terminal telomeres that, collectively, led to a reduction of the 2n = 58 bovid ancestral acrocentric chromosomal complement to the 2n = 38 detected in the four-horned antelope.
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