Morphological and Genetic Characterization of Saimiri boliviensis

Authors: Steinberg, Eliana1; Nieves, Mariela2; Ascunce, Marina2; Palermo, Ana3; Mudry, Marta2

Source: International Journal of Primatology, Volume 30, Number 1, February 2009 , pp. 29-41(13)

Publisher: Springer

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Abstract:

The taxonomy of Saimiri is controversial because morphological characteristics, traditionally used for identification, are insufficient to distinguish species and subspecies. Genetic studies of specimens become relevant for captive management, especially considering their frequently unknown geographical origin. We analyzed phenotypic and genetic parameters in Saimiri spp. in Argentinean zoological gardens and biological stations to provide a more accurate taxonomic identification. We studied 27 males and 19 females of Saimiri spp. The cytogenetic analysis in mitotic metaphases corroborated a modal number of 2N = 44, XX/XY, and FN = 75 for males and FN = 76 for females. G- and C-bands, fluorescence in situ hybridization (FISH) and the pelage coloration pattern of all the specimens corresponded to Saimiri boliviensis boliviensis. We characterized for the first time the sperm cell morphology and morphometry (mean ± SE): total length: 71.39 ± 5.40 m; head length: 5.71 ± 0.81 m; head width: 3.76 ± 0.70 m; acrosome length: 3.70 ± 0.82 m; midpiece length: 12.20 ± 2.22 m. Researchers can use the characterization of the sperm morphology as another parameter for taxonomic identification that, together with cytogenetic and molecular ones, would allow a more precise identification of individual Saimiri boliviensis boliviensis.

Keywords: COII; Saimiri; cytogenetics; sperm morphology

Document Type: Research Article

DOI: http://dx.doi.org/10.1007/s10764-008-9328-8

Affiliations: 1: Grupo de Investigación en Biología Evolutiva (GIBE). FCEyN, UBA. CONICET. Laboratorio 46, 4to. Piso, Pabellón II, Ciudad Universitaria, Intendente Güiraldes 2160 (C1428EHA), Buenos Aires, Argentina, Email: steinberg@ege.fcen.uba.ar 2: Grupo de Investigación en Biología Evolutiva (GIBE). FCEyN, UBA. CONICET. Laboratorio 46, 4to. Piso, Pabellón II, Ciudad Universitaria, Intendente Güiraldes 2160 (C1428EHA), Buenos Aires, Argentina 3: CITEFA. Juan Bautista de la Salle 4397 (B1603ALO), Buenos Aires, Argentina

Publication date: February 1, 2009

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