Paper in Heredity explores non-Darwinian evolution
| November 11, 2011 | Posted by News under Darwinism, Evolution, Intelligent Design, News |
Also non-Lamarckian:
A discussion is brewing at Heredity (Nature Publishing Group) – two letters to the editor in response to a review which suggests that a great deal of adaptive evolution is the fixation of traits which were previously plastic responses to different environments:
Heredity advance online publication 2 November 2011; doi: 10.1038/hdy.2011.97
Evolution of adaptive phenotypic traits without positive Darwinian selection
- A L Hughes
Recent evidence suggests the frequent occurrence of a simple non-Darwinian (but non-Lamarckian) model for the evolution of adaptive phenotypic traits, here entitled the plasticity–relaxation–mutation (PRM) mechanism. This mechanism involves ancestral phenotypic plasticity followed by specialization in one alternative environment and thus the permanent expression of one alternative phenotype. Once this specialization occurs, purifying selection on the molecular basis of other phenotypes is relaxed. Finally, mutations that permanently eliminate the pathways leading to alternative phenotypes can be fixed by genetic drift. Although the generality of the PRM mechanism is at present unknown, I discuss evidence for its widespread occurrence, including the prevalence of exaptations in evolution, evidence that phenotypic plasticity has preceded adaptation in a number of taxa and evidence that adaptive traits have resulted from loss of alternative developmental pathways. The PRM mechanism can easily explain cases of explosive adaptive radiation, as well as recently reported cases of apparent adaptive evolution over ecological time.
From adaptation to molecular evolution – L-M Chevin and A P Beckerman
Dangers of ‘Adaptation’ – J F Y Brookfield
6 Responses to Paper in Heredity explores non-Darwinian evolution
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Interesting – yet another non-teleological explanation for the development of life – yet another nail in the argument:
“Couldn’t have happened via RM+NS therefore information therefore design”
One step at a time, Mark. First things first, are you now finally in agreement with ID proponents and evolutionists like James Shapiro that life “couldn’t have happened via RM+NS”? Because that is a massive concession on your part and you should take time to explore it before you rush on to “but it’s STILL not ID!” After all, to have been so wrong for so long must surely make you very cautious about jumping to another wrong conclusion!
Or, do you still believe in the creative power of NS+RM despite the fact that there’s still no evidence for it (after vast amounts of time and money looking for it)? Even your fellow evolutionists are starting to distance themselves from all the things (that is to say, everything) that Darwin got wrong.
The title says it all:
Besides Darwinists being severely misleading as to the fact that Natural Selection actually reduces genetic information instead of ever creating any new functional genetic information, these following studies reveal the fact that Darwinian evolution cannot even account for the fact a parent species/kind will have a more ‘robust genome’ than its sub-species. A more robust genome that gives all indication of being ‘designed’ to ‘rapidly radiate’ in a ‘top down’ fashion, instead gradually differentiate in a ‘bottom up’ fashion.
These following studies and video, on Cichlid fishes, are very good evidence of the ‘limited and rapid’ variation from a parent kind predicted by the Genetic Entropy model:
Further notes:
Music and verse:
what forces other than RM and NS are being discussed in those papers?
Chris
I don’t have the expertise to decide. I have been aware for many years that evolutionary biologists belief that life developed through a number of mechanisms – one of which is RM+NS – and that in some cases there is controversy among them as to relative importance of the mechanisms. I have never made a secret of this and frequently brought up the point on UD. So no concession and no change of mind.
The only point I want to make is that the more non-teleological alternatives to RM+NS the weaker the case for ID. Dembski himself has admitted that the argument for ID is an argument from elimination. The more there is to eliminate the harder it gets.
I have bumped into claims of plasticity and this YEC welcomes it. They have been forced to admit to it because they witnessed it. lizards and such.
Selection of mutations just doesn’t work as its too quick. So they need another mechanism to explain change.
the concept of mutation and then selection on it was always just a hunch.
Its just too sloppy and unlikely after all.
These new writers are just admiting another mechanism, a little, is needed.
creationists have been saying this a long time.