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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Description of karyotype in Hypostomus regani (lhering, 1905) (Teleostei, Loricariidae) from the Piumhi river in Brazil with comments on karyotype variation found in Hypostomus

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Author(s):
Mendes-Neto, Ernani de Oliveira [1] ; Vicari, Marcelo Ricardo [2] ; Artoni, Roberto Ferreira [2] ; Moreira-Filho, Orlando [1]
Total Authors: 4
Affiliation:
[1] Univ Fed Sao Carlos, Dept Genet & Evolucao, BR-13560 Sao Carlos, SP - Brazil
[2] Univ Estadual Ponta Grossa, Dept Biol Estrutural Mol & Genet, Ponta Grossa, PR - Brazil
Total Affiliations: 2
Document type: Journal article
Source: COMPARATIVE CYTOGENETICS; v. 5, n. 2, p. 133-142, 2011.
Web of Science Citations: 19
Abstract

The paper represents a comparative cytogenetic analysis of three populations of Hypostomus regani in Brazil. Two populations belong to the Upper Parana River Basin and the third one, the karyotype of which is described for the first time, was probably introduced into the Sao Francisco River Basin through transposition from the Piumhi River. Karyotype features of populations of H. regani from the Piracicaba and Tiete River Basins are also discussed. The occurrence of H. regani in the Sao Francisco River Basin is reported for the first time here. The study also revealed distinct differences in the location of the Ag-NORs between the analyzed populations that enable individuals from the Piumhi River, Mogi-Guacu River and Tiete River to be distinguished from one another. Thus, the data obtained indicate the possibility of geographic variation fixing different karyotypes even in the same basin of origin. (AU)