Barbarian observes:
Yes, that’s one of the ways you can get rapid speciation. Polyploid mutants are often immediately and completely isolated from their original population. It’s not very common in mammals, but at least one case of such speciation has been noted in a polyploid rodent species in South America.
Rapid speciation or no,the O. gigas are not a self-perpetuating population,so they cannot be used as proof of theory of common descent.
You’ve been misled. We still have this species in existence, and they still reproduce just fine, like other self-perpetuating populations.
Polyphoid mutants are common among plants,like coffee plants and strawberries. They usually can’t interbreed with their parents,and there is no new genetic information.
You mean speciation can occur without new information?
That’s true. In some cases, new species can actually have less information than the population from which it sprung. In fact, it usually does, since allopatric speciation is more common.
They are still called coffee plants and strawberries.
And we are still primates. You find that amazing? It’s one of the predictions of common descent.
Barbarian observes:
They look quite different than O. lamarkana. They reproduce true to type. They are reproductively isolate from O. lamarkana. And they’ve had a few mutations since, so they are evolving.
They require constant care
So do Zea maize and ginko trees. Some species have become dependent on humans. But, of course, this doesn’t mean that they aren’t species.
and they always generate different chromosome sets,such as diploid, triploid, tetraploid,and so on.
And yet they still reproduce and breed true. Hmm… is it possible there’s something you’re missing here… :ehh:
Barbarian observes:
They fit the scientific defintion of a new species.
They are not an example of a species that is self-perpetuating
Since they reproduce and continue even now, they certainly would seem to be so.
Barbarian observes:
The author of that paper is dead, but O. gigas lives on. Imagine that.
That’s because O. gigas are being helped along and perpetuated by scientists.
And corn is “helped” along. But of course that polyploid rodent in South America had to go it alone. So we know it works. Moreover, there are quite a number of polyploid wild plants that do just fine without human intervention. You’re running out of excuses.
Barbarian observes:
I think I trust Dobzhansky’s understanding of science better than yours. Sorry.
His understanding of science didn’t make his discoveries any more relevant to the theory of common descent.
Other than demonstrate the fact of speciation. BTW, even most YE creationists admit the fact of speciation. They can hardly do otherwise, since it’s directly observed:
Creationists have no problem, however, with speciation, or even the “evolution” of new genera in some instances, as long as such development does not extend to the “family” (dogs, cats, horses, etc.). Henry Morris, ICR
icr.org/article/567/
Barbarian suggests:
Perhaps you don’t know what “hybrid” means. It has nothing whatever to do with these insects.
Ever hear of the Dobszanski-Muller model?
You mean the Dobzhansky-Muller model? You’ve been misled on that:
**The Dobzhansky-Muller model proposes that hybrid incompatibilities are caused by the interaction between genes that have functionally diverged in the respective hybridizing species. **
It explains why two divergent species can’t hybridize. It doesn’t mean that they are hybrids.
Barbarian observes:
Those flies would be surprised to learn that. They are still there, still reproducing, many generations later.
"Most mutants which arise in any organism are more or less disadvantageous to their possessors.
And yet, the flies live on, completely disregarding your interpretation of genetics. Cheeky little miscreants. BTW, since Dobzhansky wrote that, molecular biology has made it clear that most mutations don’t do much of anything. But of course, such mutations were not visible until we could examine DNA in detail.
This is one of the hazards of trying to cite papers over a half-century old, as current knowledge. Often you get embarassed. Like this time.