| I agree with much of your post, but have to point out that in natural carp populations the degree of variability is rather subtle... but notable differences in coloration etc do exist between segregated natural/naturalized populations. It is the mixing of carp populations and selective breeding (the European doitsu crossed with Japanese wagoi is an extreme example) that produces increased variability in offspring. The selective breeding of the rather rare truly different individual in a 'natural' population is what appears to have occurred in Niigata. Once recessive genes are allowed to express themselves, the opportunity for more recessive expression and mixing of recessive traits increases.
You should have come to my talk at CFKS. You might not have agreed with some of my thoughts, but it would have been fun to discuss. |