The Greywing is an autosomal mutation of the " dil " locus with the symbol " dil gw ", and so is a member of the multiple allelic series which also includes the Clearwing ( " dil cw " ) mutations.
12.
It has been suggested that the German Fallow and the Non-sex-linked Ino are mutations of the same gene, " a + ", and hence they are given symbols " a bz " and " a " respectively, but evidence for this allelic series is scanty.
13.
The expression of any color, except white, requires the presence of the normal allele " C " +, an autosomic dominant allele that allows the synthesis of pigment in the feathers . " C " + is the most dominant of the allelic series of the locus " C " with the following order of dominance:
14.
Mutagenic lesions at this target site was induced using ZFN technique by a group of researchers in US . They suggested that the ZFN technique allows straightforward generation of a targeted allelic series of mutants; it does not rely on the existence of species-specific embryonic stem cell lines and is applicable to other vertebrates, especially those whose embryos are easily available; finally, it is also feasible to achieve targeted knock-ins in zebrafish, therefore it is possible to create human disease models that are heretofore inaccessible.
