Talk:Divergent evolution

message: Does anyone know if this is synonymous with adaptive radiation? Might need a redirect if so... --postglock 06:14, 21 Jun 2005 (UTC)
replies: text: "Alternatively, "divergent evolution" can be applied to molecular biology characteristics. This could apply to a pathway in two or more organisms or cell types, for example. This can apply to genes and proteins, such as nucleotide sequences or protein sequences that derive from two or more homologous genes. Both orthologous genes (resulting from a speciation event) and paralogous genes (resulting from gene duplication within a population) can be said to display divergent evolution. Because of the latter, it is possible for divergent evolution to occur between two genes within a species."
"The usage of this term and other related terms can vary slightly from one researchers to the next." 
This could be because some of the researchers are confused. I gather "Divergent evolution" is a neologism, apparently defined in opposition to "convergent evolution."   I looked in the indices of five books about evolution (by Futuyma, Ridley, Mayr, Dobzhansky, and Freeman, 2/e) and did not find the term "divergent evolution" in any of them. 
I recommend a pretty thorough revision of this article. I would omit the organismal examples and focus on how the term is used by the molecular community.   Eperotao 02:54, 13 November 2006 (UTC)
thread_title: Untitled

message: This article gives as an example of divergent evolution the history the apple maggot fly, which it states as having occurred in the 1860s onward in Australia.
Yet in checking the 'apple maggot' article, it gives as a time and place for the evolution of this fly as being from 1800 - 1850 in North America.
Both articles can't be correct, can they? So if not, which article is correct? Van Dieman (talk) 04:17, 23 October 2009 (UTC)
thread_title:  Apple maggot (fly) - evolved where? 

message: The text puts only allopatry as a cause, and even though I don't recall any textbook example for sure, but I think that sympatric divergence is pretty much a classic notion (perhaps more so than actual sympatric speciation). When two related species (or a single species with enough variation) live in the same habitat/territory, they/it may diverge towards different niches not only without isolation but "because" there's no isolation, to "avoid" competition against one another (a particular case of disruptive selection I guess). Whereas geographical isolation/distance can as well inversely have the effect of preserving the species as it was, as long as the environment does not differ that much. An example may be the ground finches of the genus Geospiza. They share the same environment, but each species specializes in feeding from different seed sizes. --Extremophile (talk) 21:55, 2 April 2012 (UTC)
thread_title:  Simpatry as a factor driving the divergence 

message: Though I greatly enjoyed seeing another example incorporated in divergent evolution, I can't seem to find the reference for the apple maggot fly in order to check its credibility... Please add references to that section.
Do we know if divergent evolution is forced or voluntary? If so, why didn't the following evolving population die out due to natural selection? Just some food for thought and if anyone comes across this information in any articles, it would be a great addition to this article!
"After many generations and continual evolution of the separated species, the population eventually becomes two separate species to such an extent where they are no longer able to interbreed with one another. One particular cause of divergent species is adaptive radiation." This is in the divergent species section. Could we get a reference on this fact? This fact seems very limiting. If this is true, then why are mules produced when horses and donkeys mate?  — Preceding unsigned comment added by Pangapalan.1 (talk • contribs) 01:43, 2 October 2014 (UTC)
thread_title: Untitled

message: See: Talk:Divergent evolution in animals Andrew Z. Colvin • Talk 01:53, 10 July 2018 (UTC)
thread_title:  Discussion of merge 

message: — Assignment last updated by Cara.begley (talk) 17:40, 10 March 2024 (UTC)
thread_title: Wiki Education assignment: BIOL 412 HONORS