'ploidy question

A meeting place for rose breeders.
Judith Singer
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Joined: Wed Dec 31, 1969 7:00 pm
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'ploidy question

Post: # 70401Post Judith Singer
Tue Oct 01, 2019 9:29 am

I am the lead cyber rosarian for the ARS, filtering and answering questions from around the world, in most cases sending the question off to a local CR in their area or finding an expert to answer their question. Who better than the RHA to answer this one!?

Does anyone know the answer?

"Is the Natal Briar diploid or poliploid?"

Judith

roseseek
Posts: 4983
Joined: Sun Dec 11, 2011 6:54 pm
Location: Zone 9b Central California, Sunset Zone 15
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Re: 'ploidy question

Post: # 70402Post roseseek
Tue Oct 01, 2019 11:54 am

Perhaps someone can find the information in this paper? It seems as if it should be there, but I have run out of time to dig it out. Good luck, Judith!

https://link.springer.com/article/10.10 ... 008-0615-9

https://www.ncbi.nlm.nih.gov/pubmed/18839177
Kim
California Central Coast
USDA Zone 9b
Sunset Zone 15
Cooler inland coastal valley with strong marine influence

Peter Harris
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Joined: Thu Oct 13, 2011 1:08 am
Location: Charleston, West Virginia
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Re: 'ploidy question

Post: # 70414Post Peter Harris
Wed Oct 02, 2019 10:05 am

Likely a triploid

See https://www.helpmefind.com/rose/l.php?l=2.43529.0&tab=1

Thought to be a multiflora x damask seedling. Apparently does not set many hips (typical of many triploids), and from the pictures of some hips it seems that the hips have only one or two seeds.

Peter

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