Published October 24, 2019 RESEARCH Exploring the Genetic Diversity of Wild Cranberry Populations in the Upper Midwestern United States Lorraine Rodríguez-Bonilla,* Fabian Rodríguez Bonilla, Daniel Matusinec, Eric Wiesman, Sean D. Schoville, Amaya Atucha, and Juan Zalapa* L. Rodríguez-Bonilla, A. Atucha, and J. Zalapa, Dep. of Horticulture, ABSTRACT Univ. of Wisconsin, Madison, WI 53706; F.R. Bonilla, Dep. of Biology, Plant breeding continuously evolves to satisfy Univ. of Puerto Rico Mayaguez, Mayaguez, Puerto Rico 00680; D. the needs of the growing population, but in Matusinec, Dep. of Atmospheric and Oceanic Sciences and Political many crops, it has resulted in a decline in the Science, Univ. of Wisconsin, Madison, WI 53706; E. Wiesman and genetic diversity available. Therefore, increasing J. Zalapa, USDA-ARS, Vegetable Crops Research Unit, Univ. of knowledge of the range, genetic relationships, Wisconsin, Madison, WI 53706; S.D. Schoville, Dep. of Entomology, and diversity among crop wild relatives (CWR) Univ. of Wisconsin, Madison, WI 53706. Received 5 June 2019. Accepted is essential for the efficient use of available 30 Sept. 2019. *Corresponding authors (
[email protected]; germplasm in breeding programs. In cran-
[email protected]). Assigned to Associate Editor Joseph Robins. berries (Vaccinium macrocarpon Ait.), most Abbreviations: CTAB, cetyltrimethylammonium bromide; CWR, cultivars share the same genetic background crop wild relative(s); EDTA, ethylenediaminetetraacetic acid; PCA, based on only a few wild selections. This limits principal component analysis; PCoA, principal coordinate analysis; the breeding pool for selection to support the PC, principal component; PCR, polymerase chain reaction; RAPD, cranberry industry. Therefore, we studied 36 random amplified polymorphic DNA; SSR, simple sequence repeat.