About the Authors

Tasha M. Santiago-Rodriguez

Affiliation Department of Biology, University of Puerto Rico, San Juan, Puerto Rico, United States of America

Yvonne M. Narganes-Storde

Affiliation Center for Archaeological Research, University of Puerto Rico, San Juan, Puerto Rico, United States of America

Luis Chanlatte

Affiliation Center for Archaeological Research, University of Puerto Rico, San Juan, Puerto Rico, United States of America

Edwin Crespo-Torres

Affiliation Center for Archaeological Research, University of Puerto Rico, San Juan, Puerto Rico, United States of America

Gary A. Toranzos

Affiliation Department of Biology, University of Puerto Rico, San Juan, Puerto Rico, United States of America

Rafael Jimenez-Flores

Affiliation Dairy Products Technology Center, California Polytechnic State University, San Luis Obispo, California, United States of America

Alice Hamrick

Affiliation Center for Applications in Biotechnology, California Polytechnic State University, San Luis Obispo, California, United States of America

Raul J. Cano

rcano@calpoly.edu

Affiliation Center for Applications in Biotechnology, California Polytechnic State University, San Luis Obispo, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Performed the experiments: RJC AH RJF TSR. Analyzed the data: RJC GT TSR. Contributed reagents/materials/analysis tools: YNS LC ECT TSR RJC. Wrote the paper: TSR RJC.