Comparative chromosomal study of five taxa of genus Callithrix, group Jacchus (Platyrrhini, primates)

✍ Scribed by Cleusa Y. Nagamachi; Julio C. Pieczarka; Marco Schwarz; Regina M. S. Barros; Margarete S. Mattevi

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 263 KB
• Volume: 41
• Category: Article
• ISSN: 0275-2565
• DOI: 10.1002/(sici)1098-2345(1997)41:1<53::aid-ajp5>3.0.co;2-z

✦ Synopsis

The karyotypes of four marmoset species of the Callithrix jacchus group (C. aurita, C. kuhlii, C. geoffroyi, and C. penicillata) were investigated. The patterns of G-, C-, and NOR-bands of these karyotypes were compared with those of C. jacchus, previously described, in order to clarify the taxonomic relationships of this species group. All species present 2n = 46, 14 uni-and 30 biarmed autosomes, a median size submetacentric X chromosome, and the same NOR-band patterns. No rearrangement or constitutive heterochromatic variation differentiate these species, which differ only in the morphology of the Y chromosome. The data obtained indicate that, from the chromosomal point stand, the marmoset species of C. jacchus group constitute a homogeneous clade. Am.