Low Glycemic Potatoes

[AndrewB]

Working on growing out my Huckleberry Gold potatoes this year. Looking good.

Does anyone have germplasm for Muru, Multa, Green Mountain, (and an October Blue x Colorado Rose cross)?

https://www.biorxiv.org/content/10.1101/2021.08.09.455724v1.abstract

I notice Tom Wagner is one of the authors of the article, so I would assume he might. Is he active here on the forum? Anyone have his contact info?

[bill]

All of the varieties that you mention are available from the USDA except OBxCR.  I doubt that Tom has any of the clones anymore, but he might have seed of some of them.  For OBxCR, you might contact the lead author to find out if they still have it in the lab at MSU. They might be willing to share.  I also have Muru in tissue culture.

[nathanp]

What you should be looking for is high amylose potatoes.  Some of those are, but this is what the breeders working on low glycemic potatoes are using.  You can download a list of 361 potatoes (2nd link) related to the study below (first link), then sort the list below and look for ones with the highest amylose levels. 

https://npgsweb.ars-grin.gov/gringlobal/method?id=495286

https://npgsweb.ars-grin.gov/gringlobal/methodaccession?id1=73178&id2=495286

[nathanp]

There are quite a few of Tom's potatoes in that study.  I know he has mentioned in the past he was working on low glycemic potatoes but this is the first I have seen that lists what some of them are.  I was not even aware that some of these still existed as clones, so someone related to the study must still have them.

Quite a few of those in this study, including Bzura, which you did not mention, are available through the USDA genebank.

[AndrewB]

I didn't realize the preprint I linked to above had a full pdf available. Reading through it provides much more info than the abstract.

Looks like the best ones (other than Huckleberry Gold) to pursue are:

Muru and Bzura

with Multa and Green Mountain being honorable mentions.

[AndrewB]

All of the varieties that you mention are available from the USDA except OBxCR.  I doubt that Tom has any of the clones anymore, but he might have seed of some of them.  For OBxCR, you might contact the lead author to find out if they still have it in the lab at MSU. They might be willing to share.  I also have Muru in tissue culture.

I like the look of Muru in the pictures online. Looks similar to some of the new specialty potatoes I've seen in stores recently. I think a Muru x Huckleberry Gold cross might be rather interesting.

Bill, if you have anything of Muru you can share I am very interested. Thanks.

Of the study mentioned above, it looked like only Huckleberry Gold and Muru were listed as having 100% starch uniformity.

[bill]

Muru is a great potato.  I grew it for years and hundreds of seedlings out of it.  Delicious, heavy yielding, and pretty disease resistant.

Unfortunately, I don't have any tubers at the moment.  I'll probably have them again next year.  I can send you in vitro plantlets.  My normal offering is 5 tubes for $30 shipped and it takes six weeks to get them transferred and up to size.  Hit me up by email if you want to do that.

[AndrewB]

Muru is a great potato.  I grew it for years and hundreds of seedlings out of it.  Delicious, heavy yielding, and pretty disease resistant.

Unfortunately, I don't have any tubers at the moment.  I'll probably have them again next year.  I can send you in vitro plantlets.  My normal offering is 5 tubes for $30 shipped and it takes six weeks to get them transferred and up to size.  Hit me up by email if you want to do that.

Hey Bill, I would very much like to do that next year if you will have Muru available!