Karyotypic study ofCallicebus coimbrai: a rare and threatened primate species from Brazil

Rodrigues, Luís Reginaldo Ribeiro; Sousa, Marcelo Cardoso de; Pieczarka, Júlio César; Nagamachi, Cleusa Yoshiko

doi:10.1080/00087114.2006.10797922

Cited by 4 publications

(3 citation statements)

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“…Our results support this status for the personatus group, since chromosomal painting revealed 4 fusions (1b/1c, 3c/8b, 20/13, 21/3a/15a/14) and one fission event (2a; 2a/22) in CPE that were not shared with C. pallescens and C. cupreus [Barros et al, 2003, Dumas et al, 2005. As G-banding comparisons suggest that the C. personatus karyotype is highly similar to those of C. nigrifrons and C. coimbrai [Rodrigues et al, 2006], we could hypothesize that the same fusions/fission rearrangements may also be present in the latter 2 species. Such chromosomal traits could be interpreted as synapomorphies for the personatus group; however, additional species must be mapped to test this hypothesis.…”

Section: Discussionmentioning

confidence: 99%

“…Their diploid numbers range from 16 chromosomes in C. lugens [Bonvicino et al, 2003] to 50 chromosomes in C. donacophilus , C. pallescens , and C. hoffmannsi [De Boer, 1974;Minezawa and Borda, 1984;Stanyon et al, 2000;Rodrigues et al, 2001]. Classical cytogenetic methods, such as G-banding, C-banding and NOR silver-nitrate staining, have been used to examine the chromosomal rearrangements involved in the karyotypic divergence of Callicebus [for review see Minezawa and Borda, 1984;Pieczarka and Nagamachi, 1988;Minezawa et al, 1989;Barros et al, 2000;Rodrigues et al, 2001Rodrigues et al, , 2004Rodrigues et al, , 2006Bonvicino et al, 2003;Nagamachi et al, 2003].…”

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Genomic Mapping of Human Chromosome Paints on the Threatened Masked Titi Monkey (Callicebus personatus)

Rodrigues¹,

Pieczarka²,

Pissinati

et al. 2011

Cytogenet Genome Res

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Callicebus is a complex genus of neotropical primates thought to include 29 or more species. Currently, the genus is divided into 5 species groups: donacophilus, cupreus, moloch, torquatus and personatus. However, the phylogenetic relationships among the species are still poorly understood. This genus is karyotypically diverse and shows extensive variation in diploid number (2n = 16 to 50). To foster a better understanding of the chromosomal diversities and phylogenetic relationships among the species of Callicebus, we performed a chromosome-painting analysis on the Callicebus personatus genome using human probes, and compared the resulting hybridization map to those of previously mapped titi species. We detected 38 hybridization signals per haploid autosomal set of C. personatus. Few ancestral syntenies were conserved without rearrangement, but 4 human associations (HSA20/13, 3c/8b, 1b/1c and 21/3a/15a/14) were demonstrated to be apomorphic traits for C. persona tus. G-banding suggested that these associations are shared with C. nigrifrons and C. coimbrai (personatus group), while C. personatus is linked with C. pallescens (donacophilus group) by 2 synapomorphies: HSA10b/11 (submetacentric) and an inversion of HSA1a.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

Genomic Mapping of Human Chromosome Paints on the Threatened Masked Titi Monkey (Callicebus personatus)

Rodrigues¹,

Pieczarka²,

Pissinati

et al. 2011

Cytogenet Genome Res

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“…Titi monkeys (Pitheciidae; subfamily Callicebinae) are a monophyletic clade of pair-bonded species exhibiting biparental care [ 52 , 53 , 54 , 55 ] and in which the taxonomy remains contentious [ 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 ], with several taxa being re-evaluated and/or newly described within last two decades [ 59 , 67 , 68 , 69 , 70 , 71 , 72 ]. Until recently, our understanding of the taxonomy and phylogeny of titi monkeys was based mainly on biogeographical, morphological, and anatomical criteria complemented by chromosome analysis [ 73 , 74 , 75 , 76 ]. However, recent molecular studies involving multiple genetic markers [ 62 , 63 , 64 , 65 , 66 ] have prompted a reassessment of phylogenetic and biogeographic relationships among the various titi taxa, leading Byrne et al [ 62 ] to split the former genus Callicebus into three genera, including Plecturocebus (with 22 species) and Cheracebus (with six species), which together are distributed in the Amazon and Chaco ecoregions, and Callicebus (with five species), which is endemic to eastern Brazil.…”

Section: Introductionmentioning

confidence: 99%

Duetting Patterns of Titi Monkeys (Primates, Pitheciidae: Callicebinae) and Relationships with Phylogeny

Adret

Dingess

Caselli

et al. 2018

Animals

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Simple SummaryTiti monkeys—a diversified group of pair-bonded, territorial neotropical primates exhibiting biparental care—produce elaborate, powerful vocal duets used for long-range communication. While the callicebine taxonomy has been centered mainly on the biogeography, morphology, anatomy, and genetics of titi populations, vocal attributes have received little attention as potentially informative markers of phylogenetic relationships. We conducted acoustic analysis of callicebine loud calls recorded from ten species of titis at sites in Bolivia, Peru, and Ecuador and found four distinct patterns of duetting that only partially match three major clades identified in recent molecular genetic studies. In particular, we found that the loud calls of the San Martin titi monkey, P. oenanthe, and the Urubamba brown titi, P. urubambensis, strikingly differ from putative relatives within the donacophilus lineage. Our findings highlight interplay between genes and environment on the expression of vocal behavior and suggest that closer interaction between taxonomists, ethologists, and molecular biologists should be rewarding in resolving the callicebine phylogeny. Such concerted efforts, in turn, will most likely generate valuable recommendations for the conservation of some endangered populations of titi monkeys, such as the vocally distinctive San Martin titi.AbstractLong-range vocal communication in socially monogamous titi monkeys is mediated by the production of loud, advertising calls in the form of solos, duets, and choruses. We conducted a power spectral analysis of duets and choruses (simply “duets” hereafter) followed by linear discriminant analysis using three acoustic parameters—dominant frequency of the combined signal, duet sequence duration, and pant call rate—comparing the coordinated vocalizations recorded from 36 family groups at 18 sites in Bolivia, Peru and Ecuador. Our analysis identified four distinct duetting patterns: (1) a donacophilus pattern, sensu stricto, characteristic of P. donacophilus, P. pallescens, P. olallae, and P. modestus; (2) a moloch pattern comprising P. discolor, P. toppini, P. aureipalatii, and P. urubambensis; (3) a torquatus pattern exemplified by the duet of Cheracebus lucifer; and (4) the distinctive duet of P. oenanthe, a putative member of the donacophilus group, which is characterized by a mix of broadband and narrowband syllables, many of which are unique to this species. We also document a sex-related difference in the bellow-pant phrase combination among the three taxa sampled from the moloch lineage. Our data reveal a presumptive taxonomic incoherence illustrated by the distinctive loud calls of both P. urubambensis and P. oenanthe within the donacophilus lineage, sensu largo. The results are discussed in light of recent reassessments of the callicebine phylogeny, based on a suite of genetic studies, and the potential contribution of environmental influences, including habitat acoustics and social learning. A better knowledge of callicebine loud calls may also impac...

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2020

Atlas of Mammalian Chromosomes

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Karyotypic study ofCallicebus coimbrai: a rare and threatened primate species from Brazil

Cited by 4 publications

References 19 publications

Genomic Mapping of Human Chromosome Paints on the Threatened Masked Titi Monkey <i>(Callicebus personatus)</i>

Genomic Mapping of Human Chromosome Paints on the Threatened Masked Titi Monkey <i>(Callicebus personatus)</i>

Duetting Patterns of Titi Monkeys (Primates, Pitheciidae: Callicebinae) and Relationships with Phylogeny

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