Site Talk forum: Iris Database

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Name: Catherine
IN (Zone 5b)
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Cat
May 13, 2014 11:02 PM CST
Just wondering why there is not a listing for ploidy in the Iris Database? I know it is included in the Daylily listings. I was adding Irises to my Flower 2013 software and noticed there is a ploidy menu there.
Cat
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Name: Catherine
IN (Zone 5b)
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Cat
May 14, 2014 9:25 AM CST
I got an answer from the Iris list. Thanks!
Cat
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Name: Dave Whitinger
Jacksonville, Texas (Zone 8b)
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dave
May 14, 2014 1:16 PM CST

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What was the answer?
Name: Catherine
IN (Zone 5b)
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Cat
May 14, 2014 1:21 PM CST
Well, here is the answer I was provided in the Iris form was

Most of the modern TBs & SDBs are 48 c. MTBs are diploid & more tets are coming. the hybridizers usually indicate. The old pallidas & other early historics are diploids (24). so it is not necessary to list for each plant. the change to tet for the larger TBs is not new so not listed.
Cat
"Plant your own garden and decorate your own soul, instead of waiting for someone to bring you flowers." - Veronica A. Shoffstall
Name: Catherine
IN (Zone 5b)
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Cat
May 14, 2014 2:11 PM CST
I'll have to do a little research to figure out what it all means.. lol
Cat
"Plant your own garden and decorate your own soul, instead of waiting for someone to bring you flowers." - Veronica A. Shoffstall
Name: Jennifer
48036 MI (Zone 6b)
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jvdubb
May 14, 2014 2:30 PM CST
Its all completely foreign to me! I'll stick with my NOIDS handed down from Grandma Rolling on the floor laughing
Name: Catherine
IN (Zone 5b)
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Cat
May 14, 2014 3:34 PM CST
@ Jennifer, me too!! lol
Cat
"Plant your own garden and decorate your own soul, instead of waiting for someone to bring you flowers." - Veronica A. Shoffstall
Name: Catherine
IN (Zone 5b)
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Cat
May 14, 2014 4:05 PM CST
@ Dave if you have simpler explanation or can explain the reply I go, it would help. *Blush*
Cat
"Plant your own garden and decorate your own soul, instead of waiting for someone to bring you flowers." - Veronica A. Shoffstall
Name: Connie
Willamette Valley OR (Zone 8a)
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pardalinum
May 14, 2014 4:39 PM CST
I think I can help on this one.

First sentence: "Most of the modern TBs & SDBs are 48 c." This means that modern tall bearded irises ("TBs") and standard dwarf irises (SDBs) have 48 chromosomes ("48 c"). This is double the normal count for irises, hence they are "tetraploid".

Second sentence: "MTBs are diploid & more tets are coming. the hybridizers usually indicate." This means that miniature tall bearded irises (MTBs) are diploid (24 chromosomes) but hybridizers are creating more of them that are tetraploid (tets) and the hybridizer would include this information in the description.

A short explanatory dictionary to summarize:

Diploid iris have 24 chromosomes
Tetraploid (tet) iris have double that, 48 chromosomes
TB = Tall bearded iris
SDB = Standard dwarf bearded iris
MTB = Miniature tall bearded iris. These are tall irises that have little flowers.

All of this is important to know for hybridizers. For a cross to be successful the two parents need to have the same chromosome count, for example, both diploid or both tetraploid. Otherwise it is not important to know if you are just growing them to look pretty in the garden.

Well now that I have muddied the waters more....
Name: Suzanne/Sue
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Calif_Sue
May 14, 2014 4:49 PM CST

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Far from it Connie, that was an excellent explanation, easily understood in laymans terms. Thumbs up
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Name: Connie
Willamette Valley OR (Zone 8a)
Forum moderator Hybridizer Region: Pacific Northwest Lilies Sempervivums Sedums
Pollen collector I was one of the first 300 contributors to the plant database! Plant Database Moderator Charter ATP Member Garden Ideas: Master Level Plant Identifier
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pardalinum
May 14, 2014 5:38 PM CST
Thanks Sue I tip my hat to you. . I'm sure there is more to it than that. Mostly I simply tried to expand on irisarian's comment. I know more about crossing liliums but I do have a few iris crosses I have made.
Name: Catherine
IN (Zone 5b)
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Cat
May 14, 2014 6:12 PM CST
Well she lost me after TBs lol so, your explanation helped a great deal! Thank You! Thank You! I am trying to learn more about them but was pretty much lost there. Guess I need to study some more. lol
Cat
"Plant your own garden and decorate your own soul, instead of waiting for someone to bring you flowers." - Veronica A. Shoffstall
Name: Jennifer
48036 MI (Zone 6b)
Cottage Gardener Houseplants Spiders! Heucheras Frogs and Toads Dahlias
Hummingbirder Sedums Winter Sowing Peonies Region: Michigan Garden Ideas: Level 2
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jvdubb
May 14, 2014 6:28 PM CST
Thank you very much Connie!! That made it seem easy! Thumbs up
Name: Connie
Willamette Valley OR (Zone 8a)
Forum moderator Hybridizer Region: Pacific Northwest Lilies Sempervivums Sedums
Pollen collector I was one of the first 300 contributors to the plant database! Plant Database Moderator Charter ATP Member Garden Ideas: Master Level Plant Identifier
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pardalinum
May 14, 2014 6:34 PM CST
I tip my hat to you. Glad to help!

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