Genetic diversity analysis of big-bracted dogwood (Cornus florida and C. kousa) cultivars, interspecific hybrids, and wild-collected accessions using RADseq.

Big-bracted dogwoods are popular ornamental trees known for their beautiful spring blooms with showy bracts and four-season appeal. The two most widely grown species are Cornus florida and Cornus kousa, native to Eastern North America and East Asia. Despite their horticultural prominence, there is little information available regarding genetic diversity, population structure, relatedness, and subspecies origins of dogwood cultivars.

Genetic Diversity Analysis of in the Pacific Northwest and New Jersey.

, a biotrophic ascomycete, causes eastern filbert blight (EFB) of hazelnuts ( spp.). EFB is endemic in eastern North America, preventing the commercial production of European hazelnut ( L.

Population structure, genetic diversity and downy mildew resistance among Ocimum species germplasm.

Background: The basil (Ocimum spp.) genus maintains a rich diversity of phenotypes and aromatic volatiles through natural and artificial outcrossing. Characterization of population structure and genetic diversity among a representative sample of this genus is severely lacking.