Chimera African Violets

The African violet chimera Erin, is a single blue flower with wide white stripes. It has plain foliage and is considered a standard plant in size.  This plant when mature and full of flowers is very impressive indeed.  I have an image of it in my gallery and gives you an idea what it looks like if you are not familiar with it.  I have dozens of this plant and among them I noticed one plant that had two flower stalks where the flower was semi-double and maintained the chimera attributes!  (See the above image)  The question for me becomes… …is this a genetic mutation unique to the two adjacent flower stalks or was this produced as a consequence of some environmental condition or stress (it became very dry for an extended period)?   I have subsequently tissue cultured the stalks with the hope that if it is a genetic mutation I can produce more of these.  If all goes well in 6 weeks plantlets will be produced and about 4 months after that, probably in December I will get an answer. Now that would be a nice Christmas present.