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Abstract:

The chromosomal sex determination system differs among platyrrhine monkeys more than any other group of primates. Although a number of studies have investigated mitotic chromosomes across platyrrhine species, the meiotic chromosomes of many genera have not yet been described. The goal of this study was to characterize the sex determination system of Saimiri boliviensis. We described for the first time the meiotic cycle, confirming the sexual system in germ cells from testicular biopsies of four adult male S. boliviensis. All specimens were weighed and testicular volume was measured. We observed 22 bivalents corresponding to 2N = 44, and a "-human-like" XY bivalent was found in diakinesis/metaphase I. In addition, mitotic studies from blood samples of both sexes were performed and G- and C-banding patterns agreed with previously reported karylogy of S. boliviensis boliviensis. Further meiotic studies should be performed in New World primates based on the great value of those studies for systematic evolutionary biology and conservation programs. © 2007 Wiley-Liss, Inc.

Registro:

Documento: Artículo
Título:Meiotic characterization and sex determination system of neotropical primates: Bolivian squirrel monkey Saimiri boliviensis (Primates: Cebidae)
Autor:Steinberg, E.R.; Nieves, M.; Mudry, M.D.
Filiación:Grupo de Investigación en Biología Evolutiva (GIBE), CONICET, Ciudad Universitaria, Buenos Aires, Argentina
Grupo de Investigación en Biología Evolutive (GIBE), Departamento de Ecología, Genética Y Evolución, Lab. 46, Intendente Güiraldes 2160, (1428EHA), Buenos Aires, Argentina
Palabras clave:Cytogenetics; Meiosis; Saimiri; Sex determination; chromosome; cytogenetics; morphometry; Neotropical region; primate; sex determination; animal; article; Cebidae; chromosome banding pattern; female; gender and sex; genetics; male; meiosis; mitosis; sex chromosome; spermatocyte; ultrastructure; X chromosome; Y chromosome; Animals; Chromosome Banding; Female; Male; Meiosis; Mitosis; Saimiri; Sex Chromosomes; Sex Determination (Genetics); Spermatocytes; X Chromosome; Y Chromosome; Cebidae; Primates; Saimiri; Saimiri boliviensis; Saimiri boliviensis boliviensis; Sciurus ignitus
Año:2007
Volumen:69
Número:11
Página de inicio:1236
Página de fin:1241
DOI: http://dx.doi.org/10.1002/ajp.20430
Título revista:American Journal of Primatology
Título revista abreviado:Am. J. Primatol.
ISSN:02752565
CODEN:AJPTD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02752565_v69_n11_p1236_Steinberg

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Citas:

---------- APA ----------
Steinberg, E.R., Nieves, M. & Mudry, M.D. (2007) . Meiotic characterization and sex determination system of neotropical primates: Bolivian squirrel monkey Saimiri boliviensis (Primates: Cebidae). American Journal of Primatology, 69(11), 1236-1241.
http://dx.doi.org/10.1002/ajp.20430
---------- CHICAGO ----------
Steinberg, E.R., Nieves, M., Mudry, M.D. "Meiotic characterization and sex determination system of neotropical primates: Bolivian squirrel monkey Saimiri boliviensis (Primates: Cebidae)" . American Journal of Primatology 69, no. 11 (2007) : 1236-1241.
http://dx.doi.org/10.1002/ajp.20430
---------- MLA ----------
Steinberg, E.R., Nieves, M., Mudry, M.D. "Meiotic characterization and sex determination system of neotropical primates: Bolivian squirrel monkey Saimiri boliviensis (Primates: Cebidae)" . American Journal of Primatology, vol. 69, no. 11, 2007, pp. 1236-1241.
http://dx.doi.org/10.1002/ajp.20430
---------- VANCOUVER ----------
Steinberg, E.R., Nieves, M., Mudry, M.D. Meiotic characterization and sex determination system of neotropical primates: Bolivian squirrel monkey Saimiri boliviensis (Primates: Cebidae). Am. J. Primatol. 2007;69(11):1236-1241.
http://dx.doi.org/10.1002/ajp.20430