Crimson Gene

[Douglas14]

I was in a local garden center and came across the tomato variety Dakota Sport. I looked it up online, and found that it's a sport of Crimson Sprinter, which carries the Crimson Gene, which gives a tomato a high lycopene content(I think). I'm wondering if genetic testing is done to see if a variety carries the Crimson Gene, or if it can be deterimined by mere observation of the fruit?

Has anyone here grown Dakota Sport or Crimson Sprinter? If so, what did you think of them?