Rose sport and d reversion
Brandon Garner
last year
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can I pick your brains about Sports and Reversions?
Comments (25)Hi Susan, might you have any suckers of Dr. Huey sprouting from under any of your roses? Or, might you have some long whips of any other climbing or bush rose you're going to prune off anyway? The two things you want to practice before tackling the "good stuff" are lifting the bark from the cambium layer without going through it into the pith and removing the growth buds with cambium on them without a slice of pith. If you grab your budding knife, razor blade or whatever you're going to use and then start performing surgery on rubbish to practice, it'll help you determine when the sap is sufficiently flowing so the bark slips (separates) from the pith easily and how to do the operations without destroying the cambium. That's the bright green, juicy layer between the bark and the pith. It's the circulatory system of the plant and the tissue that differentiates, calluses and either becomes roots when rooting or knits the bud to the stock. I don't know of any which are more successful being budded, but if you start with larger buds, they're generally easier to hold on to. You want to match the width of the bud to the width of the stock. Putting a large HT bud on an eyebrow pencil gauge stock won't work. The curve of the bud has to fit the curve of the stock for best results. With practice, you'll find you can do all the things everyone tells you won't work, but to start out, doing those which are most likely to succeed will feed your confidence until you feel comfortable experimenting. I always try to stack the deck in favor of success first so you'll gain that confidence quickly and begin doing all the "Dr. Moreau" stuff when you feel ready. If your cuttings are thinner, look around for canes of those you might want to replicate and see what you can find that pretty much matches the same gauge or thickness. You'll be surprised how small a bud you can use and have it work. You can also try grafting pieces of stem to them as that also works. That's how mini trees are made as they have such small buds, using a piece of stem with buds is much faster, easier and has greater chances of success. Sequoia used to graft the stem pieces to the stocks then root them under mist so all the operations were accomplished at one time and all growth and knitting occurred simultaneously. It was fascinating to a newbie as I was when Ralph showed that to me. Feel free to play with Purple Buttons if you'd like. I'm glad she's working for you. I love the scent and color of that one. Thanks. Kim...See MoreSports and Striped Rose DNA
Comments (8)If a rose is notorious for sporting frequently, and if those sports are notorious for reverting, does it make sense that the change is due to a genetic mutation? Of course not. The DNA is the same, but the level of expression changes. Otherwise, what the claim is really stating is that a random mutation occurred, changing the DNA sequence such that now its flowers are different, and then randomly mutated back to the original DNA sequence, but everything else remained exactly the same. The odds of that happening are astronomical -- clearly not the accurate explanation of something occurring frequently. What's more likely is that as cells differentiated to form new top growth, the 3-D structure of the DNA (but not its sequence of nucleotides), which had to change anyway during cellular differentiation, didn't EXACTLY match the same 3-D structure in one branch as another, resulting in some genes being expressed at slightly different levels from cane to cane. Since the 3-D structure of DNA in the cells repeatedly changes as the cells differentiate (from stem to bud, or stem to root), there's much more possibility of this kind of variation going back and forth than that the actual DNA sequence changes and changes back again. If the DNA was that unstable sequentially, the plant likely couldn't survive. :-) ~Christopher This post was edited by AquaEyes on Wed, Apr 24, 13 at 23:15...See MoreSunstruck sport or reversion??
Comments (1)Since you aren't an expert at propagating cuttings, the safest route would be to send the cuttings to be budded as you did before... Once you can get them to grow and they are truly a white sport of Sunstruck, you will have a brand new rose on your hands......See MoreRosa Mundi is NOT a sport of the Apothecary’s Rose/Officinalis?!?!?
Comments (21)@malcolm_manners @User @User Would any of you have any idea how to get ahold of the original study in online form or otherwise? I’d like to read the publication. I am trying to track it down in the cracks between all my daughter’s school and med professional sessions but not having much luck. Thanks for any help you can offer. I know how to access scientific articles in other fields and in various journals but not published research on rose genes. Is there a single place (or even a few places) where the latest rose science congregate(s)? I plan to locate, cloud store and print anything I can gather on OGR genetic testing, especially Gallica DNA. How many of us in the rose world had high hopes for the mystery solving power of genetic testing… and are now feeling a bit dashed? (My hand goes up.) Good thing someone’s life doesn’t hang in the balance on these “scientific” genetic test results! OMG! Carol...See More
Brandon Garner thanked jacqueline9CAUser
last yearThe "reversion sport" of The Green Rose is a curious thing. I wonder how many people still have it? Ralph Moore discovered it many years ago.
Brandon Garner thanked User
mad_gallica (z5 Eastern NY)
last yearlast modified: last yearI grow the hybrid china/centifolia Juno. I'm not convinced they aren't the same rose.
This is what it is supposed to look like.
and this is what I found last spring
Brandon Garner thanked mad_gallica (z5 Eastern NY)Brandon Garner
last yearUser
last year@jacqueline9CA The "Green Rose Reversion" is unique, in that its a partial reversion to 'Old Blush'. What I mean is that it rarely produces a "normal" looking pink bloom like the photo I posted. Most of the time the blooms look like something halfway between the two types, with malformed petals of an odd "Lucky Elephant" pink coloring, streaked with white and sometimes patches of green, like this:
Brandon Garner thanked User
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