About the Authors

Carlos G. Schrago

Affiliation Departamento de Genética, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil

Albert N. Menezes

Affiliation Programa de Genética, Instituto Nacional do Câncer, Rio de Janeiro, Rio de Janeiro, Brazil

Miguel A. M. Moreira

Affiliation Programa de Genética, Instituto Nacional do Câncer, Rio de Janeiro, Rio de Janeiro, Brazil

Alcides Pissinatti

Affiliation Centro de Primatologia do Rio de Janeiro, Rio de Janeiro, Brazil

Hector N. Seuánez

genetics@inca.gov.br

Affiliations Departamento de Genética, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil, Programa de Genética, Instituto Nacional do Câncer, Rio de Janeiro, Rio de Janeiro, Brazil

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CGS MAM ANM. Performed the experiments: MAM. Analyzed the data: ANM. Contributed reagents/materials/analysis tools: HNS. Wrote the paper: HNS CGS. Provided blood samples and was responsible for keeping the male B. arachnoides in captivity: AP.