Chromosome phylogeny of the subfamily Pitheciinae (Platyrrhini, Primates) by classic cytogenetics and chromosome painting

BMC Evolutionary Biology

Research Article

Alcides Pissinati¹  Michaela Neusser²  Stephan Müller²  Edivaldo HC de Oliveira³  Julio C Pieczarka⁴  Cleusa Y Nagamachi⁴  Paulo JS Amaral⁵  Liane FM Finotelo⁶ 

[1] Centro de Primatologia do Rio de Janeiro, Niterói, Brazil;Institut für Humangenetik, Klinikum der Ludwig-Maximilians-Universität, Munich, Germany;Laboratório de Citogenética, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Brazil;Laboratório de Citogenética, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Brazil;CNPq Researcher, Belém, Brazil;Laboratório de Citogenética, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Brazil;FAPESPA Doctorship Scholarship in Genetics and Molecular Biology, Belém, Brazil;Laboratório de Citogenética, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Brazil;FAPESPA Doctorship Scholarship in Neurociences and Celular Biology, Belém, Brazil;

关键词: Chromosome Painting;    Acrocentric Chromosome;    Chromosome Form;    Paint Probe;    Paracentric Inversion;   

DOI  :  10.1186/1471-2148-10-189

 received in 2009-12-11, accepted in 2010-06-20,  发布年份 2010

来源: Springer

【 摘 要 】

BackgroundThe New World monkey (Platyrrhini) subfamily Pitheciinae is represented by the genera Pithecia, Chiropotes and Cacajao. In this work we studied the karyotypes of Pithecia irrorata (2n = 48) and Cacajao calvus rubicundus (2n = 45 in males and 2n = 46 in females) by G- and C-banding, NOR staining and chromosome painting using human and Saguinus oedipus whole chromosome probes. The karyotypes of both species were compared with each other and with Chiropotes utahicki (2n = 54) from the literature.ResultsOur results show that members of the Pitheciinae have conserved several chromosome forms found in the inferred ancestral Platyrrhini karyotype (associations of human homologous segments 3a/21, 5/7a, 2b/16b, 8a/18, 14/15a and 10a/16a). Further, the monophyly of this subfamily is supported by three chromosomal synapomorphies (2a/10b, an acrocentric 15/14 and an acrocentric human 19 homolog). In addition, each species presents several autapomorphies. From this data set we established a chromosomal phylogeny of Pitheciinae, resulting in a single most parsimonious tree.ConclusionsIn our chromosomal phylogeny, the genus Pithecia occurred in a more basal position close to the inferred ancestor of Platyrrhini, while C. c. rubicundus and C. utahicki are closely related and are linked by exclusive synapomorphies.

【 授权许可】

Unknown   
© Finotelo et al; licensee BioMed Central Ltd. 2010. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.