Meiotic characterization and sex determination system of neotropical primates: Bolivian squirrel monkey Saimiri boliviensis (Primates: Cebidae)
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...
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2007
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02752565_v69_n11_p1236_Steinberg http://hdl.handle.net/20.500.12110/paper_02752565_v69_n11_p1236_Steinberg |
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paper:paper_02752565_v69_n11_p1236_Steinberg2023-06-08T15:25:52Z Meiotic characterization and sex determination system of neotropical primates: Bolivian squirrel monkey Saimiri boliviensis (Primates: Cebidae) 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 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. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02752565_v69_n11_p1236_Steinberg http://hdl.handle.net/20.500.12110/paper_02752565_v69_n11_p1236_Steinberg |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
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 |
| spellingShingle |
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 Meiotic characterization and sex determination system of neotropical primates: Bolivian squirrel monkey Saimiri boliviensis (Primates: Cebidae) |
| topic_facet |
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 |
| description |
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. |
| title |
Meiotic characterization and sex determination system of neotropical primates: Bolivian squirrel monkey Saimiri boliviensis (Primates: Cebidae) |
| title_short |
Meiotic characterization and sex determination system of neotropical primates: Bolivian squirrel monkey Saimiri boliviensis (Primates: Cebidae) |
| title_full |
Meiotic characterization and sex determination system of neotropical primates: Bolivian squirrel monkey Saimiri boliviensis (Primates: Cebidae) |
| title_fullStr |
Meiotic characterization and sex determination system of neotropical primates: Bolivian squirrel monkey Saimiri boliviensis (Primates: Cebidae) |
| title_full_unstemmed |
Meiotic characterization and sex determination system of neotropical primates: Bolivian squirrel monkey Saimiri boliviensis (Primates: Cebidae) |
| title_sort |
meiotic characterization and sex determination system of neotropical primates: bolivian squirrel monkey saimiri boliviensis (primates: cebidae) |
| publishDate |
2007 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02752565_v69_n11_p1236_Steinberg http://hdl.handle.net/20.500.12110/paper_02752565_v69_n11_p1236_Steinberg |
| _version_ |
1768544223418646528 |