@ercgrat I wrote a draft for spinach (Spinacia oleracea) and submitted it but have a question. I noticed in one of the links that briefly describes spinach (typo in the botanical name there by the way) that it suggests F1 hybrids should be avoided to prevent CMS from entering the mix. I cannot find a scientific paper that confirms this. I did find one (see link below) that describes breeding but no mention is made of CMS. Can you point me to a paper which confirms this please?
Paper looking at spinach