For the technically interested. Others can jump this post.
Last night I thought about the Dahlia chimera. What you might call a "thought experiment"
Each inflorecence bud started from a single cell. That doubled, then doubled again. In the second doubling a mutation/reversion occured in one cell. This left 3 original cell types and one mutated. From then on this status continued. This explains the almost exact 90º angle of the segment, ie. 1/4 of a circle.
I then thought of propagating from seed-culture rather than tissue-culture (hypotheically of course).
The rub is: Dahlia are Daisy family (Asteracea/Compositae). They have both ray flowers and disk flowers. Only the disk flowers are fertile. We only have evidence that the ray flowers have been affected, so taking seeds from the disk would prove nothing.
There is as much wonder in science as there is in just wondering.
location: Surrey Hills, England, ex-woodland acidic sand. "Have nothing in your garden that you don't know to be useful, or believe to be beautiful."
Some really muddled thinking there. It is highly unlikely that any seeds would contain the mutation. I think wondering at the sheer beauty, is a far better option.
How can you lie there and think of England When you don't even know who's in the team
The mutation occurs in a gene responsible for flower colour, in one particular flower. it is not passed onto the seed. If it was it would be easy to repeat this colouration, which might well be considered desirable by breeders, however it is not possible and these mutations remain a chance occurence.
How can you lie there and think of England When you don't even know who's in the team
I'm sure it's an entirely different mechanism, but I used to have a very old camellia bush that would have 3 different flower colors on the same stem. One was an almost-white pale pink, one was pink with dark pink stripes, and one was solid dark pink.
Posts
Last night I thought about the Dahlia chimera. What you might call a "thought experiment"
Each inflorecence bud started from a single cell. That doubled, then doubled again. In the second doubling a mutation/reversion occured in one cell. This left 3 original cell types and one mutated. From then on this status continued. This explains the almost exact 90º angle of the segment, ie. 1/4 of a circle.
I then thought of propagating from seed-culture rather than tissue-culture (hypotheically of course).
The rub is: Dahlia are Daisy family (Asteracea/Compositae). They have both ray flowers and disk flowers. Only the disk flowers are fertile. We only have evidence that the ray flowers have been affected, so taking seeds from the disk would prove nothing.
There is as much wonder in science as there is in just wondering.
"Have nothing in your garden that you don't know to be useful, or believe to be beautiful."
It is highly unlikely that any seeds would contain the mutation.
I think wondering at the sheer beauty, is a far better option.
When you don't even know who's in the team
S.Yorkshire/Derbyshire border
"Have nothing in your garden that you don't know to be useful, or believe to be beautiful."
When you don't even know who's in the team
S.Yorkshire/Derbyshire border
When you don't even know who's in the team
S.Yorkshire/Derbyshire border