Dioscorea breeding for True seeds

Hi there permies, I wanted to see if anyone knows how we can get true seed potato breeding network/program going. I like yams and I am growing yams first yr and also true seed potato. I wanted to if any wild, toxic or anything true yams that have male and female flowers and are fertile exist.

Ooh, good question! I've thought about this too, and did try to look it up in the past. If my memory serves, at least some wild populations of Dioscorea polystachya/batatas do contain both male and female plants and reproduce at least partially with true seed. For the domesticated ones, maybe not. It seems (if memory serves) like the domesticated D.polystachya is divided in two ploidy types, one of which contains only male plants, and the other only female plants... but cannot be crossed with each other because of the different ploidy. Grr... I did read that in Japan (in the 80's or 90's I think) they discovered one mutated plant of one of the types that had the opposite flower type, and used it in some breeding work. But all that info is old, so whether any of those clones still exist, and how to get them if they do, who knows? I also didn't manage to track down a source for wild-type D. polystachya. If there is anyone on here from eastern Asia who could source some, I for one would be very interested. (The reason I focused on D. polystachya/batatas is that it's the only edible one likely to survive in our climate.)

Yeah the info is mad low but the plant flower when the temperature gets above for a few days I guess in a row. If the earth hotter we at least can grow banana and yam coffee and mango so there's that. Maybe some genius sepp holtzer style permanent microclimate things need to be done. All in all I plan to plant multiple yam from the "ethnic" stores like Mexican Chinese and Indian. Plant in grow bag and hope for a hot summer and hotter fall. God permit. And then flower. Wish me and you luck