if you can ignore the Lysenkoist view of genetics that was popular at the time

This is probably really in the weeds, but what was the deal with Lysenkoism? As I understand it, there was a tension between notions of individual genetic traits and competition, and vulgar Marxist interpretations of that as being somehow bourgeois.

I feel like the more reasonable approach to this, is to take a page from Kropotkin and assert that, in the process of natural selection, there's a dialectic between individual competition and cooperation between species (mutualism, symbiosis, etc.)

But obviously Lysenkoism doesn't really do that, so what was the explanation given, instead?