Inverted duplication including Endothelin 3 closely related to dermal hyperpigmentation in Silkie chickens Ming TIAN;Suyun FANG;Yanqiang WANG;Xiaorong GU;Chungang FENG;Rui HAO;Xiaoxiang HU ;Ning LI ; State Key Laboratory for Agrobiotechnology, China Agricultural University, Beijing 100193, China ; Fig.1 Founding breeds of the mapping populations and chick pigmentation phenotypes. Individuals of the chicken breeds used to develop the population for pigmentation: a Silkie, b Gushi and c Youxima; after hatching, four-week-old chickens from the mapping populations displaying different pigmentation phenotypes in the comb, which represents the color of the skin: d a putative Fm fm + black comb individual and e a putative fm + fm + white comb individual. Frontiers of Agricultural Science and Engineering,2014,1(2),121-129. Doi:10.15302/J-FASE-2014026