Oecomys franciscorum
| Autor: | Moreira, Camila Do Nascimento, Ventura, Karen, Percequillo, Alexandre Reis, Yonenaga-Yassuda, Yatiyo |
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| Rok vydání: | 2020 |
| Předmět: | |
| DOI: | 10.5281/zenodo.4566685 |
| Popis: | Oecomys franciscorum Pardiñas et al. (2016) recognized the karyotype described by Andrade & Bonvicino (2003) for an undescribed species of Oecomys from Corumbá, Mato Grosso do Sul state of Brazil, as O. franciscorum. Karyotype: 2n = 72 and FN = 90. Autosomal complement: 10 biarmed pairs (one large and the remaining medium to small decreasing in size), and 25 acrocentric pairs large to small decreasing in size. Sex chromosomes: X, a submetacentric (the largest chromosome of the complement); Y, a medium submetacentric. One female presented heteromorphism of the short arm of the X chromosome. C-banding metaphases exhibited blocks of constitutive heterochromatin on the pericentromeric region of the majority of the autosome pairs. The X chromosome presented the short arm entirely heterochromatic, plus a C-band on the distal region of its long arm. The Y chromosome presented a heterochromatic block on the distal region of the long arm. G-banding was also performed (Andrade & Bonvicino 2003, pp. 198, Fig. 2A). Published as part of Moreira, Camila Do Nascimento, Ventura, Karen, Percequillo, Alexandre Reis & Yonenaga-Yassuda, Yatiyo, 2020, A review on the cytogenetics of the tribe Oryzomyini (Rodentia: Cricetidae: Sigmodontinae), with the description of new karyotypes, pp. 1-111 in Zootaxa 4876 (1) on page 55, DOI: 10.11646/zootaxa.4876.1.1, http://zenodo.org/record/4423612 {"references":["Pardinas, U. F. J., Teta, P., Salazar-Bravo, J., Myers, P. & Galliari, C. A. (2016) A new species of arboreal rat, genus Oecomys (Rodentia, Cricetidae) from Chaco. Journal of Mammalogy, 97 (4), 1177 - 1196. https: // doi. org / 10.1093 / jmammal / gyw 070","Andrade, A. F. B. & Bonvincino, C. R. (2003) A new karyological variant of Oecomys (Rodentia: Sigmodontinae) and its phylogenetic relationship based on molecular data. Genome, 46, 195 - 203. https: // doi. org / 10.1139 / g 02 - 123"]} |
| Databáze: | OpenAIRE |
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