Dear Yeşerin

Population expansion following recent or historical bottlenecks as well as reducing mutation rate via natural selection, associated with increasing effective population sizes may lead to the erosion of past divergence event. I don't think that the obscuring effect would have the same extent in both nuclear and mtDNA markers as each marker has its own unique genealogy, which may indicate concordance or divergence from the species history. Indeed, mitochondrial DNA only reveals a species maternal demographic history. However, nuclear-derived data are influenced by sex-biased dispersal because of the character of biparental inheritance.  

Thank you Temim.

What if the organism is simultaneous obligate hermaphrodite that often copulates reciprocally? Then the mtDNA is transferred biparentally, which will eliminate sex-biased dispersal if I am thinking correctly. But still "lack of recombination" and "smaller effective population size" should create a difference for mtDNA. I am assuming neutrality, by the way. I guess that mtDNA would lose divergence signal faster than nuclear DNA.

Hi,

Your question is really interesting. Yes I think it is possible, in the event that population will be found in a position to adapt an environment that will "compel" of evolutionary conducted a convergence.

For the second installment of your question. All will depend on two things, the first is the history of this population (es that there was migration? By maternal or paternal way?), The second depends on the mode of transmission of mtDNA.

I hope I have made a draft response. What do you think?

Hi Semir,

Thank you for your answer.