Melanomys chrysomelas (Goldman, 1918)

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 : 29

Melanomys chrysomelas

Karyotype: 2n = 56 and FN = 58. Autosomal complement: two small metacentric pairs, and 25 acrocentric pairs (one conspicuously large and 24 medium to small decreasing in size). Sex chromosomes: X, a large subtelocentric (the largest chromosome of the complement); Y, a medium subtelocentric ( Gardner & Patton 1976, pp. 10, Fig. 4B ).

Figures

FIGURE 4. Karyotype of Euryoryzomys sp., male with 2n = 58 and FN = 92. (A) Conventional staining (JAP 228); (B) C-banding (JAP 228); (C) G-banding (JAP 228); (D) Metaphase plate after fluorescent in situ hybridization with telomeric probe (left) and DAPI staining (right) (JAP 228), arrows indicate the hybridization of interstitial telomeric sequence.