Abstract
Flowering dogwood (Cornus florida L.) is an ornamental tree valued for its showy white, pink, or red spring bract display and red fall color. A “pseudo” F2 flowering dogwood population was recently developed from a honeybee mediated cross of ‘Cherokee Brave’ × ‘Appalachian Spring’. The foliage color of 94 “pseudo” F2 plants segregated into green- and red- leaved phenotypes and was visually rated for color on five spring dates over 3 years (2007–2009). Chi-square analyses of observed segregation of phenotypes indicated that a complementary gene interaction form of epistasis controls foliage color with a 9:7 two gene ratio. We propose the symbols rl1 and rl2 for the genes controlling this trait.
Published Version
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