Journal ArticleDOI
Chromosome studies in the mammalian subfamily Antilopinae
TLDR
A taxonomy has been constructed which differs most markedly from the classical taxonomy in two aspects: the blackbuck, Antilope cervicapra, shows a strong karyotypic affinity to gazelles of the subgenus Nanger; Thomson's gazelle, Gazella thomsoni, lacks the numerous Robertsonian fusions and the X-autosome translocation common to other members of Gazella studied to date.Abstract:
The karyology was studied in nine species of Antilopinae and evaluated with regard to cytotaxonomic relations within the subfamily. Karyotypes of three of these species were previously undescribed. Chromosomes were examined by conventional staining methods, G-, C-, and T-banding techniques, and by autoradiography. Evolutionary differentiation of karyotypes in this group is characterized by extensive Robertsonian fusions and a particular translocation between the X chromosome and an autosome. With comparison of Giemsa-banding patterns a taxonomy has been constructed which differs most markedly from the classical taxonomy in two aspects: the blackbuck, Antilope cervicapra, shows a strong karyotypic affinity to gazelles of the subgenus Nanger; Thomson's gazelle, Gazella thomsoni, lacks the numerous Robertsonian fusions and the X-autosome translocation common to other members of Gazella studied to date. Cases of intraspecific polymorphism of chromosome morphology and number are presented.read more
Citations
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A complete estimate of the phylogenetic relationships in Ruminantia: a dated species‐level supertree of the extant ruminants
Manuel Hernández Fernández,Manuel Hernández Fernández,Manuel Hernández Fernández,Elisabeth S. Vrba +3 more
TL;DR: The first complete estimate of the phylogenetic relationships among all 197 species of extant and recently extinct ruminants combining morphological, ethological and molecular information is presented, and the position of several taxa whose systematic positions have remained controversial in the past is unambiguously established.
Journal ArticleDOI
A complete phylogeny of the whales, dolphins and even-toed hoofed mammals (Cetartiodactyla)
TL;DR: The present species‐level tree of the Cetartiodactyla provides the first opportunity to examine comparative hypotheses across entirely aquatic and terrestrial species within a single mammalian order.
Journal ArticleDOI
Chromosome conservation in the Bovidae.
TL;DR: The chromosomes of 12 bovid species were harvested from fibroblast cultures after incorporation of bromodeoxyuridine into early replicating DNA and the commonness of monobrachially homologous biarmed chromosomes among some bovids suggested that reproductive isolation and speciation in some instances might have resulted from centric fusion events.
Journal ArticleDOI
Evolutionary histories of highly repeated DNA families among the Artiodactyla (Mammalia).
TL;DR: Six highly repeated DNA families were analyzed using Southern blotting and fluorescence in situ hybridization in a comparative study of 46 species of artiodactyls belonging to seven of the eight extant taxonomic families, supporting the monophyly of the infraorder Pecora, an inability to resolve any interrelationships among the other tribes of bovids, and a lack of molecular variation among two morphologically and ecologically distinct subspecies of African buffaloes.
Journal ArticleDOI
Allozyme divergence within the bovidae.
TL;DR: A phylogeny of the Bovidae based on 40 allozyme loci in 27 species is described, representing 10 of the 14 bovid tribes described by Vrba (1985), and Giraffe represented a related family (Giraffidae).
References
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Journal ArticleDOI
New Technique for Distinguishing between Human Chromosomes
TL;DR: It seems probable, therefore, that the darker staining with Giemsa of these regions, after denaturation and annealing, indicates the presence of highly repetitive DNA.
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Localization of heterochromatin in human chromosomes
Frances E. Arrighi,T. C. Hsu +1 more
TL;DR: Heterochromatic regions in chromosomes of man, mainly at the centromeric areas, can be demonstrated with consistency using a special staining procedure.
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Identification of human chromosomes by DNA-binding fluorescent agents
Torbjörn Caspersson,Torbjörn Caspersson,Lore Zech,Lore Zech,Clas B. Johansson,Clas B. Johansson,E.J. Modest,E.J. Modest +7 more
TL;DR: A convenient measuring technique has been developed for the rapid and accurate recording of fluorescence patterns in human metaphase chromosomes that should be particularly valuable for the identification of chromosomes 4–5 and the individual types in the 6–12 group.
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Dna replication patterns of human chromosomes.
TL;DR: Autoradiographic studies of human chromosomes labeled with tritiated thymidine have been carried out on cells from 15 individuals with normal and abnormal karyotypes.