INTRODUCTION The most significant vector of tick-borne pathogens in the United States is Ixodes scapularis Say (the blacklegged tick). Previous studies have identified significant genetic, behavioral and morphological differences between northern vs. southern populations of this tick. Because tick-borne pathogens are dependent on their vectors for transmission, a baseline understanding of the v...

Genetic stock structure and historical demography of Indian oil sardine, a commercially and ecologically important small pelagic fish, was studied using mitochondrial control region and Cytochrome C Oxidase I (COI) sequences. A 758 bp portion of the control region in 287 individuals and a 576 bp portion of the COI gene in 291 individuals from 10 locations along the distribution range were ampli...

Angiostrongylus cantonensis is a zoonotic nematode parasite causing human eosinophilic meningitis (or meningoencephalitis) worldwide. A closely related species, Angiostrongylus malaysiensis, might also be a human pathogen. Larvae were obtained from land snails in Lao PDR, Cambodia, Myanmar and Thailand. We sequenced two nuclear gene regions (nuclear ribosomal ITS2 and SSU rRNA) and a portion of...

Soil nematodes play crucial roles in the soil food web and are a suitable indicator for assessing soil environments and ecosystems. Previous nematode community analyses based on nematode morphology classification have been shown to be useful for assessing various soil environments. Here we have conducted DNA barcode analysis for soil nematode community analyses in Japanese soils. We isolated ne...

Abstract The first record of the parasite Alebion carchariae in waters Ascension Island collected from Galapagos sharks, Carcharhinus galapagensis (Carcharhinidae), is described. No previous this exists for Island, nor have sharks previously been listed as a host. Specimens A. were identified using morphological techniques and DNA barcoding cytochrome c oxidase I subunit (COI) gene. This study ...

The subgenus Hystricochaetonotus Schwank, 1990 is one of the most species-rich subgenera Chaetonotus Ehrenberg, 1830. It has a worldwide distribution and encompasses 37 species predominantly living in benthos periphyton limnetic habitats. We have discovered further nine new running stagnant waters Slovakia (Central Europe): Ch. (H.) arcanus sp. nov., avarus gulosus iratus luxus mirabilis optabi...

The population genetic structure of Simulium tani was inferred from mitochondria-encoded sequences of cytochrome c oxidase subunits I (COI) and II (COII) along an elevational gradient in Cameron Highlands, Malaysia. A statistical parsimony network of 71 individuals revealed 71 haplotypes in the COI gene and 43 haplotypes in the COII gene; the concatenated sequences of the COI and COII genes rev...

Bird strikes usually occur due to the entry of aircraft into the bird layer, i.e. the region up to which birds fly in the sky and are common during landing or takeoff 1. Along with the financial losses, bird strike also reduces the mission capability of the crew, loss of flying hours, permanent damages to the aircraft and importantly , it is always associated with the risk of mortality 2–6. The...

Short DNA sequences from a standardized region of the genome provide a DNA barcode for identifying species. Compiling a public library of DNA barcodes linked to named specimens could provide a new master key for identifying species, one whose power will rise with increased taxon coverage and with faster, cheaper sequencing. Recent work suggests that sequence diversity in a 648-bp region of the ...

The Chaitophorinae is a bionomically diverse Holarctic subfamily of Aphididae. The current classification includes two tribes: the Chaitophorini associated with deciduous trees and shrubs, and Siphini that feed on monocotyledonous plants. We present the first phylogenetic hypothesis for the subfamily, based on molecular and morphological datasets. Molecular analyses were based on the mitochondr...