Expression Analysis of Ruby.
(A) Expression of Ruby in different tissues of blond Cadenera and blood Moro oranges. Albedo is the spongy white layer of the orange peel. The flavedo is the peripheral surface of the pericarp.
(B) Expression of Ruby in diploid hybrids obtained crossing clementine (C. clementina cv Oroval) with C. sinensis cv Moro (OMO series) or C. sinensis cv Tarocco (OTA series). Hybrids lacking anthocyanins (OMO41, 3, and 5; OTA11, 17, 31, and 35) appear slightly different colors due to varying carotenoid levels in the fruit flesh. Error bars show se of the mean.