That's the passage. I think I've disentangled this. They didn't have all the DNA tools we have now. Some people refused to accept what ChatGPT says below, which

That's the passage. I think I've disentangled this. They didn't have all the DNA tools we have now. Some people refused to accept what ChatGPT says below, which is the only possible way it could have happened. They insisted there had to be a third plant involved. I think I ignored his last sentence. But then he doesn't tell us what the controversy WAS.