Posted: Jun 15, 2017 5:43 pm
Well presented, Shrunk.
Just to muddy the waters there is the documented instances of whole genome duplication arising in one generation and both the ancestral and descendants coexisting. The entire genome of the parental species doubles in this one generation. This genetic landscape seems to allow for selective filtering and experimentation overhead, and more than one new species may arise from an ancestral stock/population that is coextant. From a morphological cladistic prospective it could be impossible to detect a species line which could be drawn between them. Testing of the genome would show the similarities and forensic evidence of the position of the test subject(s) within the nested hierarchy. This is yet another way speciation events take place. The fusion of our chromosomes is just another form of this completely natural, and random, event wherein DNA undergoes radical shifts.
RS
Just to muddy the waters there is the documented instances of whole genome duplication arising in one generation and both the ancestral and descendants coexisting. The entire genome of the parental species doubles in this one generation. This genetic landscape seems to allow for selective filtering and experimentation overhead, and more than one new species may arise from an ancestral stock/population that is coextant. From a morphological cladistic prospective it could be impossible to detect a species line which could be drawn between them. Testing of the genome would show the similarities and forensic evidence of the position of the test subject(s) within the nested hierarchy. This is yet another way speciation events take place. The fusion of our chromosomes is just another form of this completely natural, and random, event wherein DNA undergoes radical shifts.
RS