Résumé.Les teignes le plus fréquemment rencontrées chez les singes Platyrhiniens et Cynomorphes sont des microspories à Microsporum canis ou des trichophyties à Trichophyton mentagro phytes ou T. simii. Espèce anthropo-zoophile, le T. mentagrophytes doit être distingué plus spécialement de T. rubum et T. interdigitale, dermatophytes de l'homme ; en cas d'isolements atypiques, différents tests sont utilisés pour la diagnose.Sur les 226 sujets examinés, il a été enregistré : 2 trichophyties à T. mentagrophytes (un onyxis chez un Sajou capucin et une implantation dorsale chez une Mone de Campbell) et 13 cas de lésions pseudo-dermatophytiques, sans isolement de dermatophyte. Parmi 40 des 211 singes sans lésions de la peau et des phanères, il a été décelé 14 porteurs de champi gnons kératinophiles (2 T. terrestre, 1 Keratinomyces ajelloi, 5 Chrysosporium keratinophilum et 7 Chrysosporium sp.). La question des dépilations des primates d'origine non dermatophytique a été discutée.
Summary.Dermatophytosis, pseudo-dermatophytosis and healthy cutaneous portage observed in Platyrhini and Cynomorpha monkeys.
The karyotypes of four species of Cercopithecidae: Cercopithecus aethiops tantalus, C. sabaeus, Erythrocebus patas, and Miopithecus talapoin are analysed with nearly all the banding techniques. They are compared with each other, and with the karyotypes of the Baboon P. papio and with that of man. It can be concluded that the quasi-totality or the totality of the euchromatin is common to all, but has undergone structural rearrangements, generally detectable. The heterochromatin, defined by C-band staining, and late-replicating DNA, in contrast, appears very variable: In particular, E. patas has acquired very large heterochromatic segments. The significance of these modifications is discussed.
SummaryDemonstration of a heterozygote centromeric fission in a male Theropithecus gelada and chromosomal comparison with the other Papioninae.The karyotype of a Theropithecus gelada male specimen is described and compared to that of the other Papioninae (CercopithecidaeJ. Its normal karyotype is composed of 42 chromosomes and is similar to that of Papio, Lophocebus and Macaca. The specimen studied here is heterozygote for a centromeric fission of chromosome 7. The role of chromosomal fissions in the evolution of Cercopithecoids is discussed.
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