Is it also another text that has proven how a phylogenetic tree has been used for taxon analysis?
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In the literature above, the main question the researchers are looking to satisfy is finding the exact duration when the bottleneck crash happened to make the cheetahs have a monophonic profile in their nuclear coding (Menotti-Raymond & O’Brien, 1993). The above question will only be answered through assessing the natural history of cheetahs using phylogenetic analysis.
Phylogenetic analysis plays an important role in dating the exact duration of the bottleneck. The existence of the last age brought a character of genetic diversity for two rapid DNA among cheetahs. To examine this DNA and find the exact date, phylogenetic analysis backtraces the hypervariable minisatellite loci to the ages is was not evolving rapidly (Menotti-Raymond & O’Brien, 1993). Following this traceback, it becomes apparent on the role that the phylogenetic figure creates for the question and assessment.
The data was collected through acquiring specimens from two cheetah subspecies located from South Africa and East Africa. Further data was extracted from the DNA samples of the cheetahs for tandem repeats.
The data collected was because of the following reasons. First, the Acinonyx Jubatus species of Cheetah are the most primitive subspecies of Cheetah, whose DNA was collected from East Africa. The DNA for A. Jubatus is present in the rest of the cheetahs (Menotti-Raymond & O’Brien, 1993). The A. raineyi from South Africa has different DNA and is a less primitive species that can help trace when the bottleneck happened. After collecting and tracing the DNA, it would be possible to detect when the DNA change occurred. A conclusion would then be made in regards to the dating of the bottleneck presence in the Cheetah. The reason for choosing the tandem repeats analysis is that earlier research linking the bottleneck to the demographic period is because of the allozymes that were used earlier, which was very slow.
For the results, the DNA proved that the evolution happened in a later year that the geographic partition earlier suggested. When analyzed for DNA, both subspecies retained large amounts of shared ancestry even after the minisatellite genetic and geographic partition (Menotti-Raymond & O’Brien, 1993). The analysis provided at the results dismisses the earlier allegations that geographic separation led to the Cheetah’s bottleneck. The answer to the research question mentioned earlier is that the generic analysis currently has nothing to do with the geographic partition or movement. The bottleneck is as a result of captive inbreeding management that occurs in certain species of the Cheetah. For example, the A. Raineyi undergoes the inbuild captive while A. Jubatus does not experience the inbreeding. Below are figures to prove the above analysis.
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