Acknowledgements: We gratefully acknowledge Dr. Weiwei Yan for assistance in the laboratory. This work was funded by a grant from the National Institutes of Health (1R35GM138284) to AHM. JLH was supported by a Cornell Presidential Life Sciences Fellowship and National Science Foundation Graduate Research Fellowship. All procedures conducted in this study were approved by the Institutional Animal Care and Use Committee at Cornell University. We declare we have no competing interests.
Data accessibility: All sequence data are available in the European Nucleotide Archive under accession PRJEB44013.
Authors’ contributions: JLH carried out study design, conducted data analysis, and drafted the manuscript; JGS conducted data analysis and critically revised the manuscript; AD collected field data and critically revised the manuscript; AHM carried out study design, conducted data analysis, and drafted the manuscript. All authors gave final approval for publication and agree to be held accountable for the work performed therein.