Euryoryzomys nitidus

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

http://doi.org/10.5281/zenodo.4566359

persistent identifier

http://treatment.plazi.org/id/03A587ED-3230-FFDA-83E9-FC4C2F19FB02

treatment provided by

Plazi

scientific name

Euryoryzomys nitidus
status

 

Euryoryzomys nitidus  

Karyotype: 2n = 80 and FN = 86. Autosomal complement: four small metacentric pairs, and 35 acrocentric pairs (one distinctly large and the remaining large to small decreasing in size). Sex chromosomes: X, a very large subtelocentric; Y, a small acrocentric ( Gardner & Patton 1976, pp. 4, Fig. 1E View FIGURE 1 ; Patton et al. 2000). A different morphology of sex chromosomes was reported by Volobouev & Aniskin (2000), a submetacentric X and a metacentric Y chromosome. C-banding metaphases exhibited blocks of constitutive heterochromatin on the pericentromeric region of all autosomes. The short arm of X and the Y were entirely heterochromatic. G-banding was also performed ( Volobouev & Aniskin 2000). FISH with telomeric sequences revealed signals exclusively at the ends of all chromosome arms and no interstitial signals were observed ( Silva et al. 2000).

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Rodentia

Family

Cricetidae

Genus

Euryoryzomys