Oligoryzomys yatesi (Palma & Rodriguez-Serrano, 2017)

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 : 76

Oligoryzomys yatesi

Karyotype: 2n = 54 and FN = 66. Autosomal complement: seven biarmed pairs (one very large and the remaining small), and 19 acrocentric pairs decreasing in size. Sex chromosomes: X and Y were subtelocentrics ( Palma & Rodríguez-Serrano 2017, pp. 6, Fig. 2A ). According to the authors, this karyotype was very similar with the karyotype of O. magellanicus reported by Gallardo & Peterson (1985).

The karyotype of two more undescribed species were reported by Gardner & Patton (1976) and Andrades-Miranda et al. (2001a).

Figures

FIGURE 2. Distribution of diploid and fundamental number of karyotyped specimens of genus Cerradomys. (□) C. akroai; (■) C. goytaca; (ê) C. langguthi; (r) C. maracajuensis; (▲) C. marinhus; (○) C. scotti; (☆) C. subflavus; (l) C. vivoi.