Table 1.
A list of cytogenetically studied small mammals from Santa Virgínia, Parque Estadual da Serra do Mar, state of São Paulo, Brazil. N: number of individuals analyzed. Specimens voucher/Museum Field number: ROD and MARS - Laboratório de Ecologia e Evolução Instituto Butantan, Brazil; MN - Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil; UFES - Coleção de Mamíferos da Universidade Federal do Espírito Santo, Brazil. 2n: diploid number, and FNa: number of autosomes arms. Morphologies: A=acrocentric; M=metacentric; SM=submetacentric; ST=subtelocentric. Grey cells correspond to species-specific karyotypes.
| ORDER Family Tribe Species |
N | Specimens voucher/ museum field number | Distribution | 2n | FNa | Autosome pairsa | Sex chromosomes | Variable cytogenetic characteristics | Karyotype reference | Figure No. |
|---|---|---|---|---|---|---|---|---|---|---|
|
ORDER RODENTIA Family Cricetidae Tribe Akodontini Akodon montensis |
3♀6♂ | ROD 3*, 6*, 11*, 28*, 29* UFES 2235-2237, 2239 | From Rio de Janeiro to Rio Grande do Sul and Minas Gerais, Brazil 1, 2 | 24, 24 (+ 1B) | 42 | 9 large to medium M/SM; 1 A; 1 small M | X: medium A Y: small A |
X chromosome polymorphism (enlarged short arm), 1 SM B-chromosome | Kasahara and Yonenaga-Yassuda (1982) | 3a |
| Blarinomys breviceps | 1♀ | UFES 2263 | Endemic of Atlantic Forest, Brazil1, 2 | 29 (+2B) | 50 | 11 medium M/SM 1 A Heteromorphic pair:1 M + 2 A |
X: large A | Heteromorphic pair, 2 M B-chromosomes | Ventura et al. (2012) | See Ventura et al. (2012) |
| Brucepattersonius soricinus | 1♀, 1♂ | MN 78955, 78956 | Southeastern Brazil, exclusively in Atlantic Forest1, 2, 3 | 52 | 52 | 24 medium to small A; 1 small SM | X: large ST Y: small A |
- | Bonvicino et al. (1998) | 3b–d |
| Thaptomys nigrita | 2♂ | ROD 2*, 4* | South Bahia to the north of Rio Grande do Sul, Brazil1, 2 | 52 | 52 | 24 medium to small A; 1 small SM |
X: large A Y: small SM |
- | Kasahara and Yonenaga-Yassuda (1984) | 5a |
| Tribe Oryzomyini Drymoreomys albimaculatus |
1♀, 1♂ | UFES 2271, 2272 | Endemic of Atlantic Forest, Brazil 4 | 62 | 62 | 29 medium to small A; 1 small M | X: large SM Y large SM, smaller than the X |
- | Suárez-Villota et al. (2013) | See Suárez-Villota et al. (2013) |
| Euryoryzomys russatus | 1♀, 7♂ | ROD 5*, 12*, 30* UFES 2242- 2244, 2265-2266 |
Coastal region of Brazil from Bahia to Rio Grande do Sul1, 2 | 80 | 86 | 35 A decreasing in size; 4 small M | X: large SM Y: small A or small ST |
Sex chromosomes polymorphisms | Andrades-Miranda et al. (2000) | 5b |
| Nectomys squamipes | 1♀ | UFES 2270 | Eastern Brazil 2 | 56 (+2B) | 56 | 26 A decreasing in size; 1 small M | X: large SM | 2 small SM B-chromosomes | Silva and Yonenaga-Yassuda (1998) | 4a |
| Oligoryzomys nigripes | 4♀, 4♂ | ROD 34*, UFES 2274-2280 | From South Bahia to Rio Grande do Sul, Brazil1, 2 | 62 | 80–82 | 11 M/SM decreasing in size; 19 A decreasing in size | X: large SM or large M Y: medium M or medium SM |
Pericentric inversions in pair 3, sex chromosomes polymorphisms | Paresque et al. (2007) | 4b |
| Sooretamys angouya | 1♀, 4♂ | UFES 2262, 2282-2285 | From Espírito Santo to Santa Catarina, Brazil2 | 58 | 60 | 26 A decreasing in size; 2 small M | X: large A Y: medium A |
- | Andrades-Miranda et al. (2000) | 5c |
| Tribe Phyllotini Calomys tener |
1♂ | UFES 2264 | Widespread in the state of São Paulo, Brazil1, 2 | 66 | 66 | 31 medium to small A; 1 M | X: large SM Y: medium A |
- | Mattevi et al. (2005) | 6a |
| Tribe Thomasomyini Rhipidomys itoan |
1♀ | UFES 2281 | PESM5, 6 | 44 | 50 | 17 A decreasing in size; 1 medium SM; 3 small M | X: large SM | - |
Pinheiro and Geise (2008); Costa et al. (2011) |
4c |
|
Incertae sedis Juliomys pictipes |
3♂ | UFES 2267-2269 | Minas Gerais to Rio Grande do Sul, Brazil1, 2 | 36 | 34 | 17 A decreasing in size | X: medium A Y: small A |
- | Bonvicino and Otazu (1999) | 6b–c |
|
Family Echimyidae Trinomys iheringi |
2♀, 1♂ | ROD 7*, 10*, UFES 2286 | West of Rio de Janeiro, São Paulo to north of Paraná, Brazil2, 7 | 60+1B, 60+4B | 116 | 29 M or SM decreasing in size | X: large SM Y: small SM |
1 or 4 dot-like B-chromosomes; Secondary constriction on pair 7 |
Yonenaga-Yassuda et al. (1985) | 4d |
|
ORDER DIDELPHIMORPHIA Family Didelphidae Marmosops incanus |
2♀, 1♂ | MARS 1*, 5*, 6* | Eastern Brazil8 | 14 | 24 | 6 SM decreasing in size | X: small SM Y: small A |
- | Carvalho et al. (2002) | 7a |
| Micoureus paraguayanus | 1♀, 1♂ | MARS 3*, 4* | Atlantic Forest; Eastern Brazil, until Rio Grande do Sul state8 | 14 | 20 | 4 M or SM 2 A |
X: medium A Y: medium A, smaller than X |
- | Pereira et al. (2008) | 7b |
| Monodelphis scalops | 1♂ | MN 78961 | Espírito Santo, Rio de Janeiro and São Paulo, Brazil8 | 18 | 30 | 4 SM 3 ST 1 A |
X: small ST Y: minute A |
- | Present study | 2 |
| Philander frenatus | 1♀, 1♂ | UFES 2287-2288 | From Bahia to Santa Catarina, Brazil8 | 22 | 20 | 10 A | X: medium A Y: small A |
Pereira et al. (2008) | 7c |
Geographic distribution according to: 1. Musser and Carleton (2005); 2. Bonvicino et al. (2008); 3. Bonvicino et al. (1998); 4. Percequillo et al. (2011); 5. De Vivo et al. (2011); 6. Pinheiro and Geise (2008); 7. Woods and Kilpatrick (2005); 8. Gardner (2005).
*Specimens voucher deposited in Museu de Zoologia da Universidade de São Paulo (MZUSP) without catalog number yet. ª Autosomal morphologies do not include Bs.