However, a molecular phylogeny study on peacock-pheasants shows the opposite; the most recently evolved species is actually the least ornamented one.
A molecular phylogeny study in 2007 also supported this old idea, while its conclusions about other phyla agreed with those of several other analyses.
Debate within the scientific community regarding continues, and additional molecular phylogeny studies are being carried out in an attempt to clarify the issue.
Most molecular phylogeny studies focus on the genus Drosophila and related genera.
Both classifications were based upon cladistical analyses and included modern taxonomic molecular phylogeny studies.
Using genetic phylogeny studies, researchers suspect the virus originated in Asia, likely India, about 2,250 years ago.
Molecular phylogeny studies, however, have shown that the mysterious mesozoans are polyphyletic.
The species has yet to be included in any molecular phylogeny study of the family.
This species has not been used in recent molecular phylogeny studies of the group.
Molecular phylogeny studies suggest that the genus is a sister group of the Buteoninae.