Received: 17 July 2020 | Revised: 9 December 2020 | Accepted: 14 December 2020 DOI: 10.1002/ece3.7172 ORIGINAL RESEARCH Relative genetic diversity of the rare and endangered Agave shawii ssp. shawii and associated soil microbes within a southern California ecological preserve Jeanne P. Vu1 | Miguel F. Vasquez1 | Zuying Feng1 | Keith Lombardo2 | Sora Haagensen1,3 | Goran Bozinovic1,4 1Boz Life Science Research and Teaching Institute, San Diego, CA, USA Abstract 2Southern California Research Learning Shaw's Agave (Agave shawii ssp. shawii) is an endangered maritime succulent growing Center, National Park Services, San Diego, along the coast of California and northern Baja California. The population inhabiting CA, USA 3University of California San Diego Point Loma Peninsula has a complicated history of transplantation without documen- Extended Studies, La Jolla, CA, USA tation. The low effective population size in California prompted agave transplanting 4 Biological Sciences, University of California from the U.S. Naval Base site (NB) to Cabrillo National Monument (CNM). Since 2008, San Diego, La Jolla, CA, USA there are no agave sprouts identified on the CNM site, and concerns have been raised Correspondence about the genetic diversity of this population. We sequenced two barcoding loci, rbcL Goran Bozinovic, Boz Life Science Research and Teaching Institute, 3030 Bunker Hill St, and matK, of 27 individual plants from 5 geographically distinct populations, includ- San Diego CA 92109, USA. ing 12 individuals from California (NB and CNM). Phylogenetic analysis revealed the Emails:
[email protected]; gbozinovic@ ucsd.edu three US and two Mexican agave populations are closely related and have similar ge- netic variation at the two barcoding regions, suggesting the Point Loma agave popu- Funding information National Park Services (NPS) Pacific West lation is not clonal.