Genus, Cavia Pallas, Species, Cavia tschudii Fitzinger, – Montane Guinea Pig. Direct Children: Subspecies, Cavia tschudii arequipae Osgood, AnAge entry for Cavia tschudii. Classification (HAGRID: ). Taxonomy: Kingdom: Animalia Phylum: Chordata Class: Mammalia (Taxon entry). Familia: Caviidae Subfamilia: Caviinae Genus: Cavia Species: Cavia tschudii. Name. Cavia tschudii Fitzinger,
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IUCN Red List of Threatened Species
Nevertheless, it has been demonstrated recently that the fertility of the inversion carriers is not always reduced Muss and Schwanitz Journal of Zoological Systematics and Evolutionary Research Journal of Zoological Systematics and Evolutionary Research 48 4: User Username Password Remember me. The analysis of the C bands showed that although they had a similar distribution in the chromosomes of the two species, they were smaller in size in the autosomes and in the Y chromosome of Cavia tscudii than in the Cavia tschudii ones, suggesting that a loss of heterochromatin occurred during the domestication process.
The montane guinea pig has a gestation period around 63 days. Italian Journal of Zoology Experimental Cell Research It lives in moist habitats with rocks and coarse vegetation, making runways through the foliage.
Therefore, Cavia cutleri Bennet, is now considered a synonym of Cavia porcellus Woods and Kilpatrick This page was last edited on 15 Februaryat University of California Publications in Zoology Studies on Neotropical Fauna and Environment 19 3: Cavia tschudii Fitzinger, Mammalia: Multiple AgNOR bands were detected tscuudii the karyotypes of both species, consistently located in the telomeres of several chromosomal tschduii Fig.
Keywords Amphibia Anura Atlantic Forest Brazil Insecta Mammalia Mollusca Reptilia Squamata biodiversity tschurii distribution diversity geographic distribution ichthyofauna inventory new record new records range extension species inventory taxonomy. Cavia porcellus would be the domestic successor of Cavia tschudii from which it would have originated more than and possibly years ago Wing by a process of domestication and artificial selection in the Cavia tschudii populations which inhabit southern Peru and northern Chile Spotorno et al.
C bands The chromosomal distribution of the C bands was similar in the karyotypes of the two species, being located preferentially in the centromeres and the short arms of the chromosomes Fig.
A critical assessment of reproductive isolation in crosses between Cavia species as previously reported, confronts the appropriate identification of specimens, the reliability of the taxonomy at the time, and the nature of the differences eventually found. Articles from Comparative Cytogenetics are provided here courtesy of Pensoft Publishers.
In sum, if the chromosomal and nucleolar differences we are reporting here in molecularly identified specimens of Cavia tschudii and Cavia porcellus were also found in other populations, we predict that their eventual hybrids will show some degree of genomic caviia. Annual Review of Ecology, Evolution and Systematics The polymorphism for chromosome 1 short arms detected previously for Cavia cobaya Pallas,a synonym of Cavia porcellusOhno et al.
Received Mar 13; Accepted Jun Tschudio X chromosome of Cavia tschudii was a large submetacentric similar to that of Cavia porcellus and the Y chromosome was a subtelocentric larger than that of Cavia porcellus Fig.
Eds Mammal species of the World: In accordance with this result, measurements of the genome sizes of 31 hystricognath rodent species Gallardo et al. Caviidae from an estuarine island and C. By contrast, other wild specimens from Ica, Peru that also received the name Cavia cutleri by Tschudi inwere finally renamed as Cavia tschudii by Fitzinger in see Weir ; the latter is now the usually tschudki name for the wild montane guinea pig Woods and Kilpatrick CasillaSantiago 7, Chile.
Cavia tschudii Fitzinger, is a wild species of guinea pig RodentiaCaviidae which inhabits northern Chile, southern Peru and Bolivia and northwestern Argentina WeirWoods and Kilpatrick Most of the chromosomes of both species were tentatively identified according size and morphology.
Later, molecular analyses of the mitochondrial cytochrome b and 12S RNA genes clearly showed that the closest species to Cavia porcellus is Cavia tschudii and not the genetically related Cavia aperea Spotorno et al. Journal List Comp Cytogenet v. Symposia of the Zoological Society of London By contrast, the crosses between Cavia porcellus and Cavia aperea sensu Erxleben, Pictet and FerreroRood and between Cavia porcellus and Cavia cutleri Tschudi, sensu Bennet, Castle produced hybrids which were fertile in both sexes.
The centromeric indexes calculated by measuring the chromosomal arms in 12 metaphases of each species, allowed the classification of the chromosomes as metacentric, submetacentric, subtelocentric and telocentric Levan et al. A taxonomic and geographic reference. Mammal species of the world: