The karyotype of <i>Cercopithecus solatus</i> Harrison 1988, a new species belonging to <i>C. lhoesti,</i> and its phylogenetic relationships with other guenons

Dutrillaux, Bernard; Dutrillaux, Anne-Marie; Lombard, M.; Gautier, Jean‐Pierre; Cooper, Robert L.; Moysan, F.; Lernould, Jean-Marc

doi:10.1111/j.1469-7998.1988.tb02398.x

Cited by 11 publications

(7 citation statements)

References 2 publications

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“…Analysis of the chromosomes of C. solatus shows it to have a unique karyotype (Dutrillaux et al, 1988). All three species in the group have 60 chromosomes, but three structural rearrangements in two different chromosomes separate the karyotype of C. solatus from those of C. preussi and C. Ihoesti.…”

Section: Morphology and Cytogeneticsmentioning

confidence: 96%

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A new species of guenon (genus Cercopithecus) from Gabon

Harrison

1988

Journal of Zoology

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A new species of African forest monkey has been discovered in the lowland tropical rainforest of central Gabon. The previously undescribed monkey is a guenon, a member of the widespread African genus Cercopithecus. and belongs to the Cercopithecus lhoesti superspecies, whose two previously recognized species live in widely separated populations, C. preussi in Cameroon, and C. lhoesti east of the Zaire basin. The new guenon occurs as a small isolated population separated by 600 km and 1600 km, respectively, from the other two. Distinctive external characteristics are its white throat‐ruff, extensive chestnut‐orange saddle, and yellow‐orange tip to the tail. Chromosomal analysis confirms its close phylogenetic affinities with C. preussi and C. Ihoesti, but reveals a unique karyotype. The guenon is described as a new species, Cercopithecus solatus, the sun‐tailed monkey.

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Section: Morphology and Cytogeneticsmentioning

confidence: 96%

“…A cytogenetic study of the new guenon shows it to have 60 chromosomes, a number found only in the C. lhoesti and C . aethiops superspecies (Table III), and a karyotype closest to C. lhoesti and C. preussi (Dutrillaux et al, 1988; see below).…”

Section: Karyologjjmentioning

confidence: 99%

A new species of guenon (genus Cercopithecus) from Gabon

Harrison

1988

Journal of Zoology

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“…Thus, we have considered only euchromatin segments in our analysis. Chromosome homologies were established between humans, Cercopithecini 3,4,5,6,7,9,10,14,15,16,20,21 Kingdon (1997) and Groves (2001 and Macaca sylvanus karyotypes by pairing homologous chromosomes deduced from painting results (see Table 1 for details) and/or banding pattern homoeologies obtained from R-banding comparisons (Dutrillaux et al 1980(Dutrillaux et al , 1982(Dutrillaux et al , 1988bpresent work). After homologous chromosomal segments were identified, a character matrix was constructed (Dobigny et al 2004) based on the presence or absence of the following detected characters: first syntenic associations between these segments, corresponding to primary homologies (characters 1 to 36), then functional centromere position on each homologous segment (characters 37 to 74) (described in Figure 3 and Supplementary Figures S6 to S19).…”

Section: Chromosome Homology Rearrangement Matrixmentioning

confidence: 99%

Phylogenomics of African guenons

et al. 2008

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The karyotypes of 28 specimens belonging to 26 species of Cercopithecinae have been compared with each other and with human karyotype by chromosome banding and, for some of them, by Zoo-FISH (human painting probes) techniques. The study includes the first description of the karyotypes of four species and a synonym of Cercopithecus nictitans. The chromosomal homologies obtained provide us with new data on a large number of rearrangements. This allows us to code chromosomal characters to draw Cercopithecini phylogenetic trees, which are compared to phylogenetic data based on DNA sequences. Our findings show that some of the superspecies proposed by Kingdon (1997 The Kingdon Field Guide to African Mammals, Academic Press.) and Groves (2001 Primates Taxonomy, Smithsonian Institution Press) do not form homogeneous groups and that the genus Cercopithecus is paraphyletic, in agreement with previous molecular analyses. The evolution of Cercopithecini karyotypes is mainly due to non-centromeric chromosome fissions and centromeric shifts or inversions. Non-Robertsonian translocations occurred in C. hamlyni and C. neglectus. The position of chromosomal rearrangements in the phylogenetic tree leads us to propose that the Cercopithecini evolution proceeded by either repeated fission events facilitated by peculiar genomic structures or successive reticulate phases, in which heterozygous populations for few rearranged chromosomes were present, allowing the spreading of chromosomal forms in various combinations, before the speciation process.

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“…lhoesti solatus, a recently described species of forest guenon [1,2], has been the focus of considerable interest [3,4,6,7,9,10], but studies of wild groups have been hampered by dense vegetation resulting in relatively few direct observations of these attractive monkeys. The opportunity to study these animals at close range provided by the CIRMF breeding group's being placed in a naturally forested enclosure was seized upon, to resolve questions on habitat exploitation, diet and some reproductive parameters.…”

Section: Discussionmentioning

confidence: 99%

“…Morphological [1] and cytogenetic [2] studies showed C. lhoesti solatus to be a member of the C. lhoesti superspecies.…”

Section: Introductionmentioning

confidence: 99%