I basically just planted this plant and let it grow all summer more or less untended. It's become extremely viney, and has a ton of aphids. We live in a very dry area, near Sacramento, and I'm curious what might be the cause of some if not most of the fruit coming out with this splotchy yellow interior
In an effort to close this discussion, I noticed that my tomatoes that grew in contact with the concrete below them (have only a small plot of dirt and they grew over onto the cement) had blotchy skins like this, which on further examination extended through most of the flesh of the tomato. I don't yet know why this is the case but when compared to the other tomatoes from the vine that climbed up the wire fence, this definitely seems to be the cause.
Also, I had a crazy aphid problem, so there is that too.