Somes R G
J Hered. 1984 Jan-Feb;75(1):71-2. doi: 10.1093/oxfordjournals.jhered.a109870.
An unusual feather-color mosaic of the variegated type is described in the fowl. The bird, a female, has the e+/e+ wild-type plumage pattern with light tan or buffish colored feathers intermingled over her sides and dorsal surface. This condition is bilateral and symmetrical with whole feathers being diluted in some areas and parts of feathers in others. Breeding tests with e+/e+ males showed that the bird was heterozygous for dominant white (l/i+) and homozygous for e+. All her e+/e+, l/i+ offspring were of the red-pyle pattern as would be expected from that genotype. The possible cause of this mosaic condition may be due either to the loss of the l-bearing locus or to a reverse mutation to i+ in neural crest cells destined to become the primordial melanoblasts.
在家禽中描述了一种不寻常的杂色型羽毛颜色镶嵌现象。这只鸟是雌性，具有e+/e+野生型羽毛图案，浅棕褐色或浅黄色羽毛夹杂在其身体两侧和背部表面。这种情况是双侧对称的，有些区域的整根羽毛变淡，而其他区域则是部分羽毛变淡。用e+/e+雄性进行的育种试验表明，这只鸟对于显性白色（l/i+）是杂合的，对于e+是纯合的。她所有的e+/e+、l/i+后代都具有红桩图案，正如从该基因型所预期的那样。这种镶嵌情况的可能原因可能是携带l的基因座丢失，或者是在注定要成为原始成黑素细胞的神经嵴细胞中反向突变为i+。
