I think the Striped/Aberrant Ruthven's and the Patternless Black Gap Graybands might be codom too. I am working with the Patternless Black Gap's and from the info posted on Dan Johnson's website it appears that Patternless X normal results in about 50% of the clutch showing Patternless traits. As far as I know nobody has bred Patternless X Patternless but I hope to do it within a year or two.
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www.hcu-tx.org/

