Abstract The Chinese Panorpa species without anal horn are normally assigned to the davidi group. Here, we taxonomically revise P. group, which currently includes 17 known and four new species: gaokaii sp. nov., huayuani uncinata nov. yaoluopingensis shanyangensis Chou & Wang, 1981 sexspinosa zhongnanensis Ran, treated as junior synonyms of Cheng, 1949. We describe for first time male s...

Mycobacterium tuberculosis strains contain different genomic insertions or deletions called large sequence polymorphisms (LSPs). Distinguishing between LSPs that occur one time versus ones that occur repeatedly in a genomic region may provide insights into the biological roles of LSPs and identify useful phylogenetic markers. We analyzed 163 clinical M. tuberculosis isolates for 17 LSPs identif...

Colibacillosis caused by avian pathogenic Escherichia coli (APEC) is an economic threat to the poultry industry throughout the world. Some of the virulence genes may enhance the ability of E. coli isolates to grow in the tissues of broilers. The APEC strains are assigned to a few distinct phylogenetic groups. The purpose of the present study was to detect the virulence genes a...

A phylogenetic profile captures the pattern of gene gain and loss throughout evolutionary time. Proteins that interact directly or indirectly within the cell to perform a biological function will often co-evolve, and this co-evolution should be well reflected within their phylogenetic profiles. Thus similar phylogenetic profiles are commonly used for grouping proteins into functional groups. Ho...

Streptococcus sinensis is a recently discovered human pathogen isolated from blood cultures of patients with infective endocarditis. Its phylogenetic position, as well as those of its closely related species, remains inconclusive when single genes were used for phylogenetic analysis. For example, S. sinensis branched out from members of the anginosus, mitis, and sanguinis groups in the 16S ribo...

To compare the genetic structures of uropathogenic and commensal Escherichia coli populations, a total of 181 urinary and rectal E. coli isolates were classified into intraspecies phylogenetic groups by PCR amplifications of phylogenetic markers. The genetic variability of these isolates within phylogenetic groups was further assessed by enterobacterial repetitive intergenic consensus (ERIC) ty...