Euryoryzomys russatus (Wagner, 1848)

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, Zootaxa 4876 (1), pp. 1-111 : 16

publication ID

https://doi.org/ 10.11646/zootaxa.4876.1.1

publication LSID

lsid:zoobank.org:pub:190EC586-E14B-4AEF-A5EF-3DA401656159

DOI

https://doi.org/10.5281/zenodo.4566362

persistent identifier

https://treatment.plazi.org/id/03A587ED-3230-FFDA-83E9-FB342E28F9B2

treatment provided by

Plazi

scientific name

Euryoryzomys russatus
status

 

Euryoryzomys russatus View in CoL

Karyotype: 2n = 80 and FN = 86. Autosomal complement: four small metacentric pairs and 35 acrocentric pairs large to small decreasing in size. Sex chromosomes: X chromosome presented three different morphologies, a large metacentric, a large submetacentric, and a large subtelocentric; Y chromosome presented three different morphologies, a medium submetacentric, a medium-small subtelocentric, and a small acrocentric. The differences on the X chromosome morphology, apparently was due to heterochromatin variation since the C-bands can occur on the centromeric region or the whole short arm can be heterochromatic. NORs bands were detected in two to four small acrocentric pairs. G-banding was also performed ( Andrades-Miranda et al. 2000, pp. 465, Fig. 2D View FIGURE 2 ). This same karyotype was also reported by Silva et al. (2000), Paresque et al. (2004), Pinheiro & Geise (2008), Di-Nizo et al. (2014), and Gatto-Almeida et al. (2016). A female with 2n = 80/81 being an XX/XXX mosaic was reported by Andrades-Miranda et al. (2000).

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Rodentia

Family

Cricetidae

Genus

Euryoryzomys

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