Is there a phylogenetic analysis for HIV?
['The results of Burst and phylogenetic analysis suggested that the C. neoformans var. grubii strains could be separated into three nonredundant evolutionary groups (Burst group 1 to group 3). ', 'Phylogenetic trees were constructed to evaluate the relationships between the variants', 'We analyzed pol (protease/reverse transcriptase) sequences from 135 newly diagnosed HIV-1-infected patients during the years 2009-2011. For phylogenetic relationships, sequences were aligned to the most recent reference data set from the Los Alamos database using BioEdit (version 7.1.3). The resulting alignment was analyzed with the Phylip package (version 3.67) building a neighbor-joining tree based on the Kimura two-parameter substitution model', '. Phylogenetic analysis of gag gene were then performed using the MEGA 3.1 software, the gene distances were calculated by Distance program. There were three different HIV-1 subtypes including B, CRF01-AE and CRF07-BC present among twenty four MSMs in Zhengzhou', 'Phylogenetic analysis showed interpatient and intrapatient clustering of LTR nucleotide sequences.', ' We evaluated the risk factors for intrafamilial transmission of HIV-1 infection through qualitative epidemiology following pol and env gene sequencing and phylogenetic analysis', 'Phylogenetic analysis has shown that the Siberian 10.RU.6637 isolate displays the highest sequence identity to the HIV-1 subtype AG forms circulating in Uzbekistan', 'Phylogenetic analysis showed that the evolutionary relationship of Env between HIV and SIV was the closest and they appeared to descend from a common ancestor, and the relationship of HIV and EIAV was the furthest', 'DI was confirmed when maximum sequence divergence was excessive and supported by phylogenetic analysis', ' (HIV-1) dual infection (DI) has been associated with decreased CD4 T-cell counts and increased viral loads; however, the frequency of intrasubtype DI is poorly understood.', 'The aim of this study was to investigate the phylogenetic relationships of HIV-1 subtype C strains from Bangladesh and related strains from other countries, and thereby clarify when and from where subtype C was introduced in the country and how it subsequently spread within Bangladesh', ' This study characterized HCV genotype 5 sequences from South Africa, including six near full-length genomes, as well as the E1 region from an additional 12 genotype 5 samples. Phylogenetic analysis of these near full-length genome sequences revealed that all genotype 5 sequences formed a close cluster with high bootstrap support', ' The evolutionary history of the B subregion was not as clear as the C subregion, as the short length of this region yielded poor phylogenetic results', ' Finally, a phylogenetic tree was constructed to elucidate the observed pattern of HIV TDR']
['In biology, phylogenetics is the study of evolutionary relationships among groups of organisms (e.g. species, populations), which are discovered through molecular sequencing data and morphological data matrices. The result of phylogenetic studies is a hypothesis about the evolutionary history of taxonomic groups: their phylogeny. \nPhylogenetic analysis examines small differences in HIV’s genes using computational methods to calculate the genetic distance between strains. Unlike\nhuman DNA, which remains stable for a lifetime, HIV’s RNA changes very rapidly, leading to a huge amount of genetic diversity. This diversity means that scientists, using phylogenetic analysis, have been able to ascertain where HIV comes from, as well as track the various strains of HIV that exist worldwide.\nBased on results, there are found many studies on HIV phylogenetic analysis.']
['yes']