Lundomys Voss & Carleton 1993
Description
Lundomys Voss & Carleton 1993
Monotypic genus represented by L. molitor (Winge 1887), records of extant specimens were from southern South America, predominantly from Uruguay (Voss & Carleton 1993; Prado & Percequillo 2013).
Karyotype: 2n = 52 and FN = 58. Autosomal complement: four metacentric pairs (three large and one small), and 21 acrocentric pairs medium to small decreasing in size. Sex chromosomes: X, a medium submetacentric; Y, a small metacentric. Heteromorphism of the X chromosome was reported due to different sizes of short arm. C-banding metaphases exhibited blocks of constitutive heterochromatin on the pericentromeric region of all autosomal pairs, but was almost absent on the three large metacentric pairs. The X chromosome presented a pericentromeric heterochromatic block. The Y chromosome presented a whole heterochromatic arm. G-banding was also performed (Freitas et al. 1983, pp. 14, Fig. 1).
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Cricetidae
- Genus
- Lundomys
- Kingdom
- Animalia
- Order
- Rodentia
- Phylum
- Chordata
- Scientific name authorship
- Voss & Carleton
- Taxon rank
- genus
- Taxonomic concept label
- Lundomys Voss, 1993 sec. Moreira, Ventura, Percequillo & Yonenaga-Yassuda, 2020
References
- Voss, R. S. & Carleton, M. D. (1993) A new genus for Hesperomys molitor Winge and Holochilus magnus Hershkovitz (Mammalia, Muridae) with an analysis of its phylogenetic relationships. American Museum Novitates, 3085, 1 - 39.
- Prado, J. R. & Percequillo, A. R. (2013) Geographic distribution of the genera of the tribe Oryzomyini (Rodentia: Cricetidae: Sigmodontinae) in South America: patterns of distribution and diversity. Archivos de Zoologia, 44 (1), 1 - 120. https: // doi. org / 10.11606 / issn. 2176 - 7793. v 44 i 1 p 1 - 120
- Freitas, T. R. O., Mattevi, M. S., Oliveira, L. F. B., Souza, M. J., Yonenaga-Yassuda, Y. & Salzano, F. M. (1983) Chromosome relationships in three representatives of the genus Holochilus (Rodentia, Cricetidae) from Brazil. Genetica, 61, 13 - 20. https: // doi. org / 10.1007 / BF 00563228