Molecular analyses of turtle relationships have overturned prevailing morphological hypotheses and prompted the development of a new taxonomy. Here we provide the first genome-scale analysis of turtle phylogeny. We sequenced 2381 ultraconserved element (UCE) loci representing a total of 1,718,154bp of aligned sequence. Our sampling includes 32 turtle taxa representing all 14 recognized turtle f...

The initial analysis of complete genomes has suggested that horizontal gene transfer events are very frequent between microorganisms. This could potentially render the inference, and even the concept itself, of the organismal phylogeny impossible. However, a coherent phylogenetic pattern has recently emerged from an analysis of about a hundred genes, the so-called 'core', strongly suggesting th...

Recent research has cast doubt on the reliability of bones and teeth for reconstructing phylogenetic relationships among higher primate species and genera. Herein, we investigate whether this problem is confined to hard tissues by examining the utility of higher primate soft-tissue characters for reconstructing phylogenetic relationships at low taxonomic levels. We use cladistic methods to anal...

The Multi-State Perfect Phylogeny Problem is an extension of the Binary Perfect Phylogeny Problem, allowing characters to take on more than two states. In this article, we consider three problems that extend the utility of the multi-state perfect phylogeny model: (1) the Missing Data (MD) Problem, where some entries in the input are missing and the question is whether (bounded) values for the m...

MOTIVATION Traditional sequence distances require an alignment and therefore are not directly applicable to the problem of whole genome phylogeny where events such as rearrangements make full length alignments impossible. We present a sequence distance that works on unaligned sequences using the information theoretical concept of Kolmogorov complexity and a program to estimate this distance. ...

aspergillus fumigatus is a saprophyte fungus, widely spread in a variety of ecologicalniches and the most prevalent aspergilli responsible for human and animal invasiveaspergillosis. the first step to develop novel and efficient therapies is the identificationand understanding of the key tolerance and virulence factors of pathogens. the mainfocus of the present study is to perform the similarit...

this study represents phylogenetic analyses of two woody polygonaceous genera calligonum and pteropyrum using both chloroplast fragment (trnl-f) and the nuclear ribosomal internal transcribed spacer (nrdna its) sequence data. all inferred phylogenies using parsimony and bayesian methods showed that calligonum and pteropyrum are both monophyletic and closely related taxa. they have no affinity w...

three species belonging to three genera of the family tylenchidae, namely, cephalenchus leptus, eutylenchus excretorius, and lelenchus leptosoma were discovered as first reports for iran's nematode fauna. they were characterized by morphological, morphometric and molecular phylogenetic studies. the two latter genera are new for iran. iranian population of cephalenchus leptus is characterized by...

a myxozoan parasite belonging to the genus thelohanellus kudo, 1933 (cnidaria, myxosporea, bivalvulida) was isolated from the fins of labeo dero inhabiting ranjit sagar wetland, punjab, india. the plasmodium was 0.5-0.7 mm in diameter each containing 80- 100 number of myxospores. myxospores were egg shaped to ovoidal in valvular view having bluntly pointed anterior and broad rounded posterior e...

background: cockroaches are of vital importance medically and hygienically as they can disperse human patho­genic agents and are especially responsible for food contamination and spreading of food borne pathogens. in this study, part of mtdna-coi gene of five common pest cockroaches was tested for diagnostic and phylogenetic pur­poses. methods: we have described barcode region of mtdna-coi gene...