'ploids

[delltraveller]

Diploid or tetraploid?

I've got my seed starter mix, I've got my trays, I've got my Tom Wagner TPS, I've got my tags and my sharpie marker. I'm ready to go!

I'd like to note which " 'ploid " each variety is, so I'd love help filling in the blanks and correcting errors.

320370--di
473276 Purple --tetra
498171--di
Blue Rose--tetra
Brevoort River--tetra
Cocoon Khuchi--di
Hedge Rose--?
Land Races--di
Marble Gold--tetra
Negate--tetra
Northern Can Do--?
Papa's Pick--di
Skagit Magic F3 Magic Dragons--di
Skagit Plenty--di
Skagit Valley Gold--di
Suytu Vilquina--di
Thunder Row--di

[Tom Wagner]

Thanks, Dell.....no problem....ploidy levels identified as follows:


320370--diploid
473276 Purple --tetra
498171--diploid
Blue Rose--tetra
Brevoort River--tetra
Cocoon Khuchi--diploid
Hedge Rose--tetraploid
Land Races--diploid
Marble Gold--tetra
Negate--tetra
Northern Can Do- tetraploid
Papa's Pick--diploid
Skagit Magic F3 Magic Dragons--diploid
Skagit Plenty--diploid
Skagit Valley Gold--diploid
Suytu Vilquina--diploid (CORRECTION PROBABLY TETRAPLOID)
Thunder Row--diploid

[delltraveller]

Thanks, Tom, I sure appreciate the help.

[Tom Wagner]

Dell,

Curious as to why you are interested in the ploidy level?

The diploids are of a great mix of diversity, and any seedlings growing to the point of blooming will be obligated by self incompatibility to cross to all kinds of other diploids...as they themselves are hybrids.

The tetras will be mostly selfers and natural hybrids will be fairly rare. However, I will bet...some of the flowers on those tets will be begging you to "Cross Me, Cross Me!"

Hey, I thought these potato lines were familiar...thank you so much for the three orders for my seed! You are either a serious collector or a future plant breeder. I see that you are from Iowa? That should be comparable climate wise to my days in Kansas and Missouri. Without a doubt, I will be interested in any and all results.

BTW, to any readers on this forum that had joined lately, my apologies for not welcoming you to the forum. I don't have the social media graces to concurrently listen, read, and write like a pro on Facebook :-(

Blame it on my 'hard of hearing' insularity. I would not be a plant breeder if I were conscious 24/7 of social interactions.

[samyaza]

Suytu Vilquina is diploid ?!

CIP gives it as S. tuberosum subsp andigenum, so I thought it was tetraploid.

Anyway, this is a very unique line, and you'll notice it from only a few weeks after germination. I posted pictures of my 2011 testbed, if you wish.

[Tom Wagner]

After looking up the GRIN data and CIP data....it appears to be a genuine andigena type tuberosum. Also ditto per Samyaza's posts...both here and at....



semences-partage.net/viewtopic.php?t=10553



Part of my problem is that the re-naming of species has confused me...especially when phureja (diploids) are andigena now.

I re-read the GRIN data ...but no indication there of ploidy but no indication of re-naming either. The picture above and others of the foliage sure looks andigena. My apologies as it was a error on my part not sleeping well last night and in my haste.....

[samyaza]

Don't be sorry, I also wonder why this new classification sometimes.

The Hawkes classification is still the one used by CIP, for example, Solanum phureja do appears when you search for an accession.

Here is a summary of the history of this classification :


We all know that each of these species do represent distinct groups of varieties, with different characters, especially between the diploid and the tetraploid group.

I have a question about ploidy in potato.

In which case can a dihaploid appear, and in which case does a tetraploid appears from a diploid ?

If I understood, sometimes a diploid makes a few unreduced gametes (pollen or ovule containing all the material instead of half), so, if you cross a tetraploid and a diploid, you'll get a tetraploid hybrid, with half material from each parent.

Does this type of cross also give birth to (sterile) triploids ? Is it common ?

On the other hand, I read this kind of pollination induce dihaploids : it gives birth to a diploid which contains only the material from the gamete of the tetraploid parent. It seems to be rare, and that a few genes can "jump" from the diploid material into the progeny material, and go unnoticed.

I imagine you've made these types of crosses for decades, and you've faced all kinds of these strange results.

Edit : you know... I'm not the only person in France to grow your TPS, see here, here, here, here, here, here... I think I'll stop now ! ;D

You can rely on me to increase the number I tried to make a short "How to grow TPS", and swap some of the big amount of seeds I got from Suytu Vilquina and Orangutan in 2011 but nobody asked me for them. They're interested, it's even a good thing.

I think karamazovv is also on Homegrown Goodness, so he's more aware of TPS cultivation than most of other members.

Belzeb posted pictures of his Diamond Toro here on the forum.

[delltraveller]

Mar 7, 2012 2:13:53 GMT -8 Tom Wagner said:

Dell,

Curious as to why you are interested in the ploidy level?

I was interested in which ones were likely to self and which would need to cross.

Don't want to leave someone who can't go stag without a date for the prom, as it were.

[delltraveller]

Mar 7, 2012 2:13:53 GMT -8 Tom Wagner said:

Hey, I thought these potato lines were familiar...thank you so much for the three orders for my seed! You are either a serious collector or a future plant breeder. I see that you are from Iowa? That should be comparable climate wise to my days in Kansas and Missouri. Without a doubt, I will be interested in any and all results.

Yes, that's me. Three orders this year and a couple orders last year. And one order this year of Rob's "other" seeds.

I'll do my best to report back on what the results are.

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