Morphological and genetic diversity in Callithrix hybrids in an anthropogenic area in southeastern Brazil (Primates: Cebidae: Callitrichinae)

By

Cezar, Adrielle M.
Pessôa, Leila Maria
Bonvicino, Cibele Rodrigues

Type

Article

Date of Publication

2017-7-28

Original Publication

NeoBiota : advancing research on alien species and biological invasions

Volume

34

Pages

1--9

Subjects

Atlantic forest , introduced species , Marmosets , morphometry , Phylogeny

Contributed by

Pensoft Publishers

Language

English

Published by

Sophia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zoologia.34.e14881

 

Abstract

Two species ofCallithrix,C. jacchus(Linnaeus, 1758) andC. penicillata(É. Geoffroy, 1812), are considered invasive in Rio de Janeiro. This study determined the genetic and morphological diversity and verified the species involved in the hybridization of 10 individuals from the municipalities of Silva Jardim (N = 9) and Rio das Ostras (N = 1). We compared the external morphology and skull ofC. jacchus(N = 15) andC. penicillata(N = 14) specimens deposited in the collection of the National Museum of Rio de Janeiro (MN- UFRJ). Phylogenetic (maximum likelihood and Bayesian inference) and phylogeographical analyses (network analysis) were performed based on cytochrome b sequences. These analyses included hybrids from the metropolitan region of Rio de Janeiro (N = 3),C. penicillata(N = 2),C. jacchus(N = 2),C. geoffroyi(N = 2),C. kuhlii(N = 2),C. aurita(N = 1), and as outgroups,Mico emiliae(N = 1) andSaguinus mystax(N = 1). The pelage and skull characters of most hybrids were more closely related toC. jacchus. Skull morphometric analysis revealed an intermediate state for the hybrids. Phylogenetic analyses revealed a high similarity between the hybrids andC. penicillata. Six haplotypes of hybrids were identified. Network analysis including them andC. penicillatarecovered the topology generated by phylogenetic analysis. The results corroborate thatC. jacchusandC. penicillataparticipate in the hybridization process. There was no geographic structure between hybrids from the coastal lowlands and from the metropolitan region of Rio de Janeiro.