bioRxiv preprint doi: https://doi.org/10.1101/2020.12.30.424594; this version posted April 4, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 1 Title: Intergenerational microbial transmission in the little skate (Leucoraja erinacea) 2 Running Title: Microbial transmission in the little skate 3 Katelyn Mika,1,2* Alexander S. Okamoto,3* Neil H. Shubin,1 David B. Mark Welch4 4 1Organismal Biology and Anatomy, University of Chicago, Chicago, IL, USA 5 2Genetic Medicine, University of Chicago, Chicago, USA 6 3Human Evolutionary Biology, Harvard University, Cambridge, MA, USA 7 4Josephine Bay Paul Center for Comparative Molecular Biology and Evolution, Marine 8 Biological Laboratory, Woods Hole, MA, USA 9 *These authors contributed equally to this work. 10 11 Correspondence should be addressed to K.M. (
[email protected]). 12 900 E 57th St, Culver Hall 108 OBA 13 University of Chicago 14 Chicago, IL 60637-1428 15 Phone: 773-834-4774 16 17 18 19 20 21 22 23 1 bioRxiv preprint doi: https://doi.org/10.1101/2020.12.30.424594; this version posted April 4, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 24 Abstract 25 26 Background 27 Microbial transmission from parent to offspring is hypothesized to be universal in vertebrates.