Sex-linked heredity - Ino (heterosomal recessive)

Both Lutinos and Creaminos are called "Inos".

lutino The lutino birds show a luscious yellow colour, tail feathers and primaries sometimes are lighter or even white. They show absolutely now plumage markings. The elbow is white and is sometimes used for sex determination of the birds (which is at Inos even more faulty than at green or turquoise birds). The claws are light and shiny, the eyes red, beak and toes are flesh coloured like these of the green birds.

Creaminos, which emerge from the combination of the ino and the turquoise mutation, can be nearly white, some are more cream-coloured and others nearly yellow. Pure white birds, which are found as albinos at the budgies, don't exist at the Lineolated Parakeets, just as little as pure blue birds. The birds are always covered by a yellow mist. Therefore I prefer the denotation "Creamino" for these birds, because for me "Albinos" are pure white birds.
In other respects the same features apply as for the Lutinos.

Photo: Andreas Beck
Creamino (left) and Lutino

This mutation inhibits the production of melanin completely. It is possible, analogue to the turquoise mutation, that the gene for the melanin productions might be inactivated just partially. That would lead to birds with a colour somewhere between yellow and green, in several gradations. Probably this mutation already exists, and is called "dilute". The green colour is much lighter than that of the wild type Lineolated Parakeets.

Here you can find a few examples for the heredity of the Ino mutation!

For breeding that lovely mutation one should "use" split-birds, for the birds but also the results sake. If turquoise or even Lutinos or Creaminos are "crossed in", the offspring might be small, or even wimpy. It's not known, what's the mortality rate of embryos before hatching. F. Pfeffer (GW 1994) reported, that the breeding with the lutino Lineolated Parakeets works as good as with the type form, but with worse results.