Relative positions of the loci of the peacomb (P), eumelanin restrictor (Db), eumelanin extension (Ml) and plumage pattern (Pg) genes of the domestic fowl.

摘要: Abstract 1. A single comb Partridge Wyandotte bantam male was mated with two Indian Game females to produce a double heterozygote of the linked eumelanin extension (Ml) and pea (P) genes. 2. Four so produced were their sire provide backcross recessive. 3. Forty crossovers occurred among 86 progeny suggesting linkage approximately 46 units between Ml P. 4. The restrictor gene (Db) had previously been shown be P, Pg by 28, 10 17 respectively and, furthermore, locus lie loci Db Pg. appears therefore P hence relative positions 4 genes is Db, Ml,