I don't know a lot about Genetics but I believe that they were thinking of Melanotic --
Melanotic [MI] --
Dominant Black intensifyer, one of the genes which, in concert with Pg and other genes, is responsible for plumage patterns. There is speculation that there may be more than one eumelanin intensifying gene similar to Ml and non-allelic.
http://sellers.kippenjungle.nl/page3.html
Note --
Pg = Pattern Gene
Chris
Melanotic [MI] --
Dominant Black intensifyer, one of the genes which, in concert with Pg and other genes, is responsible for plumage patterns. There is speculation that there may be more than one eumelanin intensifying gene similar to Ml and non-allelic.
http://sellers.kippenjungle.nl/page3.html
Note --
Pg = Pattern Gene
Chris