Oh, I thought I addressed this, several times, but I’ll address it again for you. So you have polyploidy, how do you transform those duplicated genes to a new form? Why Kotatsu, it requires mutation and selection and as we have seen over and over, transforming more than a single gene at a time profoundly slows the evolutionary process.
Cute. However, your stock answer doesn't in any way address what I am talking about, as the process I mention is independent of random point mutations and other kinds of mutations that alter the exact sequence. I am talking about the very process of polyploidisation, not what happens afterwards.
"I" transform the diploid genome into a polyploid one simply by doubling the copies of all involved chromosomes by one of several known mechanisms. When this occurs in only one of several individuals --- as is often the case --- we see diploid and polyploid individuals who have the exact same gene order and nucleotide sequences. No other mutations need to be involved. This is still evidence of common descent of these organisms.
I remind you also of the paper by Song
et al. in which allopolyploids evolved "extensive genomic differences" which were expressed in at least five ecological or morphological traits. This occurred within five generations after the polyploidisation event. Apparently, these things
can happen more rapidly than you can imagine.
And please don't take me on the "name the selection pressures and targeted genes" merry-go-round again --- at least not until you have read that article and understood it.
You can construct phylogenic trees based on similarities of genes. All that it shows is that living things can have some similarity in chemical structure. In order to use these phylogenic trees as evidence of common descent, you need to show how mutation and selection can accomplish the transformation from one form to another. The mathematical and empirical evidence of mutation and selection shows that it can not make the transformations.
The mathematical and empirical evidence shows that "we"
can make those "transformations". I take it you have never seen an alignment of genes, have you?
Showing how this could work is rather easy. Take COI, for example, which I have worked with previously. When examining almost any given alignment of COI, you will notice a pattern. The differences between taxa almost invariably occur in every third position. A small amount occur in the positions before those, and almost none are in the positions after the first ones. This shows us that there is a higher tolerance for variation in every third position. Not surprisingly, when we translate these sequences into amino acids, the variable positions are third positions, the less variable positions are second positions, and the least variable positions are first positions. This makes sense, because variation in third positions is least likely to change the resulting amino acid, whereas variations in second and first positions are progressively more likely to change amino acid.
Thus, if we study this gene in organisms of a given genus, we will see slight differences between them. These differences are mainly in third positions, and can be adequately explained by random point mutations. These mutations may occur at any point in the gene, of course, but as first and second positions are more likely to change the amino acid, and thus the chemical and sterical properties of the protein, they are usually selected against.
This gives us a framework for phylogenetic research. Add sufficient taxa to your matrix, and compare the differences between the sequences. Many of the third positions will differ between closely related species. Most of them differ between more distantly related organisms, and with sufficient time of separation, second positions also show differences, and even first positions. When the taxa are too distantly related, of course, there is saturation, and COI cannot be used (but there are other regions used for those levels). However, the point is that these differences, which occur precisely by random point mutation and subsequent selection, form nested hierarchies. These are usually bifurcations, as is predicted from the more common ways of speciation.
These is no point along this road in which you are correct.
The only button you have pushed is the laughter button. Are you talking about the combined weight of the citations which show that n+1 selection pressures evolve more rapidly than n selection pressures? I don’t know how I can bear all zero of your citations.
I have posted five or six examples of how you are wrong in this regard. You have dismissed them without reading them, because you cannot understand what they are about. This is not my problem, obviously, but it is wrong to say that I have presented zero citations.
Also, the pressure I was referring to was that I believe there are more people arguing against you (or at least trying to, but your childish copy-paste-dismiss routine makes that kind of hard) than there used to be. We are your selection pressures, and in this limited context, you are correct. The evolution of your arguments has slowed and will presumably stop once we are enough people.