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Nine karyomorphs for spiny rats of the genus Proechimys (Echimyidae, Rodentia) from North and Central Brazil
Machado, Taís; Silva, Maria José de J; Leal-Mesquita, Emygdia Rosa; Carmignotto, Ana Paula; Yonenaga-Yassuda, Yatiyo.
Affiliation
  • Machado, Taís; Universidade de São Paulo. Instituto de Biociências. Departamento de Genética e Biologia Evolutiva. São Paulo. BR
  • Silva, Maria José de J; Universidade de São Paulo. Instituto de Biociências. Departamento de Genética e Biologia Evolutiva. São Paulo. BR
  • Leal-Mesquita, Emygdia Rosa; Universidade Federal do Maranhão. Centro de Ciências Biológicas e da Saúde. Departamento de Biologia. São Luis. BR
  • Carmignotto, Ana Paula; Universidade de São Paulo. Museu de Zoologia. São Paulo. BR
  • Yonenaga-Yassuda, Yatiyo; Universidade de São Paulo. Instituto de Biociências. Departamento de Genética e Biologia Evolutiva. São Paulo. BR
Genet. mol. biol ; Genet. mol. biol;28(4): 682-692, Dec. 2005. ilus, mapas, tab
Article in En | LILACS | ID: lil-451011
Responsible library: BR26.1
ABSTRACT
Spiny rats of the genus Proechimys are morphologically diverse, widely distributed and have diploid numbers ranging from 2n = 14-16 to 2n = 62. In this paper we present cytogenetical data and brief comments on morphological and biogeographical issues related to spiny rats. In our sample of 42 spiny rats collected from 12 Brazilian Amazonian tropical rainforest and the Cerrado (Brazilian savanna) sites we detected nine karyological entities four different karyomorphs with 2n = 30, three with 2n = 28, one with 2n = 15 and one with 2n = 44. Based on qualitative morphological characters these karyomorphs can be allocated to five species within the goeldii, guyannensis and longicaudatus species groups
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Full text: 1 Index: LILACS Main subject: Rats / Cytogenetics Type of study: Qualitative_research Limits: Animals Country/Region as subject: America do sul / Brasil Language: En Journal: Genet. mol. biol Journal subject: GENETICA Year: 2005 Type: Article
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Full text: 1 Index: LILACS Main subject: Rats / Cytogenetics Type of study: Qualitative_research Limits: Animals Country/Region as subject: America do sul / Brasil Language: En Journal: Genet. mol. biol Journal subject: GENETICA Year: 2005 Type: Article