We selected the orthologous gene sets which have undergone adaptive evolution that were also on the site of mutually exclusive AA substitution to identify convergent evolution
by adaptive selection pressure for the monotocous or polytocous traits.
The scientists carried out one of the largest genome-wide surveys of its type to discover the extent to which convergent evolution
of a physical feature involves the same genes.
In many cases of convergent evolution
, says Cunningham, the benefits of a structure or form are obvious, such as the hydrodynamic body shape of marine predators like dolphins and sharks.
Washington, Jan 23 ( ANI ): Several populations of cavefish have constantly and independently, lost their eyesight and pigmentation, which is a remarkable example of convergent evolution
, researchers say.
This kind of event, a molecular version of convergent evolution
, makes two animals' sequences look similar even though they may be only distantly related.
When two animals arrive at the same endpoint, in this case, these similar feeding structures, via different processes, it is called convergent evolution
They regard any similarity between birds and dinosaurs as an example of convergent evolution
, by which two independent groups grow to look alike.
It appears that both sharks and marine mammals may have arrived at the same visual design by convergent evolution
, in other words, they acquired the same biological trait in unrelated lineages," said Hart.
Because the rest of the clock genes are quite different between plants and humans, Harmer thinks that the fact that a very similar gene has the same function in both plants and humans is probably an example of convergent evolution
, rather than something handed down from a distant common ancestor.
Consequently, the two groups of eyes have been thought a classic example of convergent evolution
In the April 15 Proceedings of the National Academy of Sciences, researchers from the University of Illinois at Urbana-Cham paign describe the evolutionary transformation of this gene and report that convergent evolution
in other fish has produced the same antifreeze from a different starting point.
Our results provide the first compelling evidence that social interaction can cause convergent evolution
in species competing for space and resources.