Comparative cytogenetics of tapirs, genus Tapirus (Perissodactyla, Tapiridae)

  title={Comparative cytogenetics of tapirs, genus Tapirus (Perissodactyla, Tapiridae)},
  author={M. Houck and S. C. Kingswood and A. Kumamoto},
  journal={Cytogenetic and Genome Research},
  pages={110 - 115}
Chromosomes of the four species of Tapirus were 2n = 52 in T. indicus, 2n = 76 in T. pinchaque, 2n = 80 in T. bairdii, and 2n = 80 in T. terrestris. The number of autosomal arms was 80–94. G-banded karyotypes indicated that a heterochromatic addition/deletion distinguished chromosomes 2 and 3 of T. bairdii and T. pinchaque, respectively. There were at least 13 conserved autosomes between the karyotypes of T. bairdii and T. terrestris, and at least 15 were conserved between T. bairdii and T… Expand
Multidirectional cross-species painting illuminates the history of karyotypic evolution in Perissodactyla
The first genome-wide comparative chromosome maps of African rhinoceroses, four tapir species, four equine species, and humans are reported, revealing a striking switch between the slowly evolving ceratomorphs and extremely rapidly evolving equids. Expand
Cytogenetic Examination of South American Tapirs, Tapirus Terrestris (Perissodactyla, Tapiridae), from the Wroclaw Zoological Garden
Blood collected from the tapirs via Dipetalogaster maxima species did not show usefulness for cytogenetic studies due to the inability of cells to proliferation, even after a relatively short period of time elapsed since the blood sampling. Expand
itogenomics of the mountain tapir ( Tapirus pinchaque , apiridae , Perissodactyla , Mammalia ) in Colombia and Ecuador : hylogeography and insights into the origin and systematics f the South American tapirs anuel
We sampled 45 Andean mountain tapirs (Tapirus pinchaque) from Colombia and Ecuador and sequenced 15 mitochondrial genes (two rRNA and 13 protein codifying genes)—making up 13,939 base pairs,Expand
Mitogenomics of the mountain tapir (Tapirus pinchaque, Tapiridae, Perissodactyla, Mammalia) in Colombia and Ecuador: Phylogeography and insights into the origin and systematics of the South American tapirs
There was no significant spatial trend in genetic structure for the mountain tapir in Colombia and Ecuador and the genetic heterogeneity analyses revealed a low genetic differentiation between them, suggesting that T. kabomani is not a full species. Expand
Phylogeny of Horse Chromosome 5q in the Genus Equus and Centromere Repositioning
This analysis traced the phylogeny of horse chromosome 5, analyzing the order of BAC markers, derived from a horse genomic library, in 7 Equus species and showed that repositioned centromeres are present in E. asinus and E. burchelli, confirming that centromere repositioning is a strikingly frequent phenomenon in this genus. Expand
It is apparent the chromosome has gone through several morphological changes while undergoing speciation in the Equidae, yet the overall gene order is conserved. Expand
Molecular phylogeny and evolution of the Perissodactyla
An important implication of this study is that Equus asinus, the African wild ass was found to be the sister taxon of Asiatic asses and zebras, diverging from the common ancestor with caballine horses 2 Mya. Expand
Genome sizes in afrotheria, xenarthra, euarchontoglires, and laurasiatheria.
The first comprehensive set of genome size measurements for 15 Xenarthra species (armadillos) and for 12 house-mouse species are established, which probably promoted the adaptation of extant mammals to their environment. Expand
Cross-species chromosome painting in the Perissodactyla: delimitation of homologous regions in Burchell’s zebra (Equus burchellii) and the white (Ceratotherium simum) and black rhinoceros (Diceros bicornis)
In spite of the high diploid numbers of the two rhinoceros species their karyotypes are surprisingly conserved offering a glimpse of the putative ancestral perissodactyl condition and a broader understanding of genome organization in mammals. Expand
A review of the reproductive biology and breeding management of tapirs.
Data indicate that females are polyestrous, with an estrous cycle length of approximately 30 days, and Optimization of assisted reproductive technologies, including sperm cryopreservation and artificial insemination, could benefit the genetic management of tapirs. Expand


The X chromosomes of mammals: karylogical homology as revealed by banding techniques.
A comparison of the Giemsa-banding patterns of the X chromosomes in various mammalian species including man indicates that two major bands (A and B), which are resistant to trypsin andExpand
Diploid chromosome number and chromosomal variation in the white rhinoceros (Ceratotherium simum).
Comparison of G-banded karyotypes from the two subspecies failed to indicate a difference in banding pattern, but did reveal size polymorphisms involving short arm additions in five individuals, including three individuals with a diploid number of 2n = 81 in northern white rhinoceroses. Expand
Walker's mammals of the world
From aardwolves and bandicoots to yapoks and zorillas, Ernest P. Walker's Mammals of the World is the most comprehensive-the pre-eminent-reference work on mammals. Now, completely revised andExpand
Mammalian cytogenetics and conservation of species.
Several examples of mammalian species that have flourished from an extremely small founder stock are examined to draw attention to the possibility that "inbreeding" is not invariably disadvantageous. Expand
Cytogenetics: Its role in wildlife management and the genetic conservation of mammals
It is argued that this cryptic chromosome variation can pose a significant threat to translocation practices involving the admixture of specimens between geographically distant populations, and guidelines proposed for the use of cytogenetics as a conservation tool in wildlife management. Expand
Walker's Mammals of the World, 4th Edition, Ronald M. Nowak, John L. Paradiso. The Johns Hopkins University Press, Baltimore, Maryland (1983), 1xi, +1-568 (Vol. I), xxv+569-1362 (Vol. II). Price $65.00
This book is based on a symposium organized by the Entomological Society of America in 1980. It is, however, by no means a run-of-the-mill volume of symposmm proceedings. It will prove to be anExpand
Chromosomal Evolution and Speciation Revisited
Several process-oriented models of chromosomal speciation are reviewed with respect to genetic isolating mechanisms, the fitness components of individual rearrangements, and the permissible population structures, and qualitatively the expected genetic correlates of each model are estimated to maximize its testability. Expand
1996 IUCN Red List of Threatened Animals
The reptiles, amphibians and fishes previously listed have been reassessed using the complete new IUCN red list category system, and future editions will aim to cover all species in these groups. Expand
High-resolution bands in human fibroblast chromosomes induced by actinomycin D.
High-resolution Giemsa-trypsin bands can be induced in the chromosomes of human skin fibroblast cultures exposed to actinomycin D (final concentration, 2 µ g/ml) before harvest.
Standardization in human cytogenetics.
  • Xue-wen Wang
  • Materials Science, Medicine
  • Birth defects original article series
  • 1975
A force actuated electrical switch which discriminates between forces having varying time duration. A pendulum, including a conductive wire secured at one end and fastened to a conductive bob at theExpand