Abstract
Most genetic variation in blueberries is quantitative. However, after a decade of exploration among Florida's native blueberry populations and more than 100,000 seedlings grown in nursery plots, several qualitative variants have been found. An allele for anthocyanin-free foliage in Vaccinium elliottii is recessive to wildtype. A second recessive allele at a different locus in the same species depletes anthocyanin in the fruit but not the foliage. A recessive allele in V. ashei produces white, pink, or purple berries when homozygous, the color depending on the clone that is made homozygous for the allele. A dominant allele in V. darrowi produces pink fruit and is nonallelic with the fruit anthocyanin deficiency allele in V. elliottii. Two V. elliottii clones with a weeping to prostrate growth habit have been found in west Florida. This phenotype is maintained by clonal propagation, but its inheritance has not been determined. A V. ashei plant with compact growth habit transmits this phenotype to a small percentage of its F-1 progeny when crossed with most V. ashei cultivars.
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