I used to have a post telling about Peppermint (Red Pigment Suppressor - RPS gene) is a recessive trait to Red pattern (the most popular pattern of domesticated Swordtail since its first introduction to hobbyists in 1922.) The oldest offspring batch from last test reached 3 months old, yet still not showing any RPL (Red pigment loss)
The next test that I am coming up with is to test Peppermint on Albino Koi pattern. So far, I am still using the full-white peppermint ♂ in last test to cross with an Albino Koi female. Why Albino female? As being proved before, Albino red eye is recessive to Normal (or Wild type) Black eye, so it would be easier to expect the F1 should yield 100% black eyes, thus playing as a control for the test. Also when the frys come out, I would like to see if the trait is dominant (suffering RPL at some point of their development) or recessive (koi pattern shows on some or all individuals at birth). B - Peppermint male x Albino Koi female: F1? (Picture or clip of the Peppermint male is posted here ...
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September 2019
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