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Extended Pedigrees of Apple Cultivars from the University of Minnesota Breeding Program
Might be of interest here https://doi.org/10.21273/HORTSCI16354-21
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davem
297 Posts
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February 12, 2022 - 3:59 pm
Here's the paper with all the details: https://doi.org/10.21273/HORTSCI16354-21
 

full-472fig1.jpg

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Reinettes
Lewis Co., WA
370 Posts
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February 13, 2022 - 4:55 pm

Holy Toledo, Dave!

What this suggests to me is that -- even in some "planned" hybridization programs -- people have not been very good about their "controlled" crosses.  Other crosses, perhaps based upon the appearance of the resulting apple, were "speculated" to have a particular parentage.  It's all quite astounding to me in looking at your post.  Controlled hybridization has to be done very conscientiously in order to prevent unintended pollen donors.  ...As I've often told my wife over the last 3 decades:  "Good help is hard to find".  If you want it done properly, you need to do it yourself.  Plant hybridizing is not something that you leave to others....

In the case of those crosses for which records weren't kept, but nevertheless "assumptions" were made about parentage, those guesses are wild ones.  Unlike many other cultivated plants, the numerous characters exhibited in domestic apples are largely polygenic.  Consequently, one cannot expect Mendelian genetics to apply.  ...Dare I say it:  this is one of the things that makes apple hybridization such a challenge and adventure.

It's a bit amusing to me that the chart starts with 'Reinette Franche'.  That cultivar was among the very first few items that I requested from the national germplasm collection, merely because I was trying to acquire the "earliest known" Reinette.  It's interesting that someone, somewhere, is running the DNA profiles for so many apple cultivars.  Of course, the data is only as accurate as the veracity of the clone's identity.  🙂  Far too many varieties have never had a comprehensive, morphological and visual description published.

Nevertheless, this is a very fascinating post and I appreciate your posting it.  Somehow you manage to find all kinds of obscure things online.  I always appreciate it when you share them with "the rest of us" Forumites.

Thanks again!

Tim (Reinettes).

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DanielW
Clark County, WA
518 Posts
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February 14, 2022 - 4:21 pm

Very interesting DaveM.  Thank you for posting.

I wonder if I'm reading correctly.  Looks like MN 1627 is Golden Delicious X Duchess of Oldenburg?

And Keepsake is Frostbite X Northern Spy?

And then  Honeycrisp is Keepsake X MN 1627?  So then Honeycrisp has genes from GD, DO, Frostbite, and NS.

Also Keepsake and Sweet 16 are from the same parents?  I think Frostbite must be where Sweet 16 gets its cherry flavor.  

 

Other comments.

I think Minneiska is SweeTango (TM).  

and Minnewashta is Zestar! (TM)

I've seen great reviews of Keepsake as a good tasting, long keeper.  Mine (scion from Fedco) was a shy bearing, small,  scabby ugly apple and flavor not that good.  I cut it off.  

Liberty is often described as triploid but here is a parent of MN80.  I guess that's possible.  I've seed other triploids listed as parents, I think Gravenstein but I forget the progeny.

Macoun is listed as Jersey Black X MacIntosh.  I have Macoun on Bud-9 but it will probably be a few years before I can taste it.  

I think this shows Wealthy is progeny of Jonathan and Duchess of Oldenberg, and is ancestor to Liberty.  I always like Jonathan flavors and think I can detect that in Liberty.

Flavor wise, Jonathan remains one of my favorite all time apples.  I'm glad its genetics continue through some others.  

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Reinettes
Lewis Co., WA
370 Posts
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February 14, 2022 - 8:16 pm

DW,

"I've seen great reviews of Keepsake as a good tasting, long keeper.  Mine ... was a shy bearing, small, scabby ugly apple and flavor not that good."

I've only had one opportunity to taste 'Keepsake' and that was, perhaps, 6 years ago at an HOS Fall Fruit Show (--ah, the memories...).  Given all the hype that I'd heard, I was rather disappointed to find it a rather small, unimpressively-tasting thing.  I'm guessing that its putative value is in its disease resistance, or ...something.  Perhaps, as a parent for further future crosses it's genes may learn to shine!  'Keepsake' itself, as a named variety, may as well have been something that I pulled off the the shoulder of the road to sample in a hedgerow.  

I don't mean to be mean in saying so.  If you and I both tasted the same clone of apple passing as 'Keepsake', then I....  Well.  Let me just leave it there.  I obviously don't know when to shut the heck up and I don't want to offend anyone.

Reinettes.

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