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Robdog
Sun Jun 11, 2006, 10:11 AM
I've recently aquired a fairly nice Orange Flash Caca and was wondering if he bred with my double red(I think) female would I be more likely to get a 50/50 ratio or would it depend on whats in the breeding lines of both fish???
Has either strain been proven to be dominant over the other?
Should I consider breeding them together or get an Orange Flash female for him to play with?

fishgeek
Sun Jun 11, 2006, 12:45 PM
http://www.apistogramma.com/cms/Articles/General_Dwarf_Cichlid_Articles/The_Yellow_Gold_Cockatoo_by_Mike_Yamamoto/

mike yamamoto's article on the genetics in cacatoides colouration

hth andrew

Robdog
Sun Jun 11, 2006, 05:30 PM
I was going really well until I hit something that resembled algebra!
I'll read it again when it's not 3:30am and I don't have the soccer on telly yelling at me.

fishgeek
Mon Jun 12, 2006, 07:12 AM
basically suggesting that the yellow gold/orange flash genetics are recessive
so if you outcross with a standard double red you will see either no orange young or if you doube red is already crossed then 1/4 of the young will be orange

simple mendelian genetics and homozygous(pure geneticaly) or heterozygous cross ratio's

if you cross out you will need at least 2 generations to get back to the colour you like

andrew

Robdog
Mon Jun 12, 2006, 08:16 AM
Yeah I read it again today and it made a lot more sense.
I think I'll cover all bases and pick me up an OF female and have a bit of a play around.