A5056609119- Parasite Biology and Host Interactions
- Helminth infection and control
- Parasites and Host Interactions
- Bird parasitology and diseases
- Genetic diversity and population structure
- Parasitic infections in humans and animals
- Animal Ecology and Behavior Studies
- Parasitic Infections and Diagnostics
- Vector-borne infectious diseases
- Identification and Quantification in Food
- Primate Behavior and Ecology
- Fish Biology and Ecology Studies
- Nematode management and characterization studies
- Myxozoan Parasites in Aquatic Species
- Marine Ecology and Invasive Species
- Mollusks and Parasites Studies
- Avian ecology and behavior
- Fish biology, ecology, and behavior
- Coccidia and coccidiosis research
- Insects and Parasite Interactions
- Parasitic Diseases Research and Treatment
- Yersinia bacterium, plague, ectoparasites research
- Ichthyology and Marine Biology
- Insect symbiosis and bacterial influences
- Genomics and Phylogenetic Studies
Universidad Nacional Autónoma de México
2016-2025
Universidad Autónoma de la Ciudad de México
2016
Institute of Animal Science and Pastures
2015
University of California, Davis
2005-2006
The Palaeacanthocephala is traditionally represented by 2 orders, Echinorhynchida and Polymorphida, with 10 3 families, respectively. To test the monophyly of class, these certain phylogenies were inferred using nuclear small-subunit (SSU) large-subunit (LSU) ribosomal DNA sequences obtained for 29 species representing other classes acanthocephalans, rotifer outgroups. Phylogenetic relationships analyzing combined SSU LSU maximum parsimony (MP) likelihood (ML) methods. Parsimony ML trees...
Although interest in Acanthocephala seems to have reached only a small community of researchers worldwide, we show this opinion article that group parasites is composed excellent model organisms for studying key questions parasite molecular biology and cytogenetics, evolutionary ecology, ecotoxicology. Their shared ancestry with free-living rotifers makes them an ideal explore the origins parasitic lifestyle drivers host shifts environmental transitions. They also provide useful features...
Neoechinorhynchus golvani is an intestinal parasite of freshwater and brackish water fishes distributed in Mexico. The genetic variability 40 samples representing 12 populations from north, south, central Mexico, 1 Costa Rica, was estimated by sequencing 2 nuclear genes (ITS1, 5.8S, ITS2, LSU rDNA, including the domain D2 D3). length both ranged 700 to 779 base pairs (bp) 813 821 bp, for ITSs LSU, respectively. divergence among 19.5 35.3% with 9.28 19.58% LSU. Maximum likelihood maximum...
SUMMARY The recent development of genetic methods allows the delineation species boundaries, especially in organisms where morphological characters are not reliable to differentiate species. However, few empirical studies have used these tools delineate among parasitic metazoans. Here we investigate boundaries Clinostomum , a cosmopolitan trematode genus with complex life cycle. We sequenced mitochondrial [cytochrome c oxidase subunit I (COI)] gene for multiple individuals (adults and...
Abstract Members of the genus Oncicola Travassos, 1916 are generalist parasites able to infect a broad spectrum carnivorous hosts, such as marsupials, procyonids, felids, and canids, distributed globally. Adult specimens were collected from intestines three white-nosed coatis ( N. narica ), whereas cystacanths (larval form) found in body cavities two amphibian species (paratenic hosts) localities northern southeastern Mexico. Morphologically, both stages identified O. luehei (Travassos,...
Members of the Polymorphidae (Acanthocephala) are distributed worldwide as endoparasites marine mammals, fish-eating birds, and waterfowl. The family contains 10 genera, with approximately 127 species. Polymorphids characterized by having a spinose trunk bulbous proboscis, double-walled proboscis receptacle, long lemnisci, 4 tubular cement glands. taxonomic position several genera within has been controversial when considering morphological ecological characters. mitochondrial coding gene...
The taxonomic position of an actinomycete strain isolated from soil Natore, Bangladesh, was examined by using a polyphasic approach. strain, designated AAB-4 T , assigned to the genus Streptomyces on basis chemical and morphological criteria. It formed Rectiflexibiles aerial hyphae that carried long chains rounded spores. 16S rRNA gene sequenced directly then compared with those previously studied streptomycetes following generation two phylogenetic trees maximum-likelihood neighbour-joining...
Fifty four named and twenty three undetermined species of acanthocephalans associated with 213 wildlife vertebrate host from Mexico are listed; they come 220 localities, pertaining to 28 the 33 Mexican states. The checklist contains information on their hosts, habitat, distribution, records. In addition, (Polymorphus obtusus, Polymorphus trochus, Southwellina dimorpha), registered for first time in Mexico, six new locality records, ten records presented.
Abstract In parasitic organisms, particularly helminths, the usage of mitochondrial cytochrome c oxidase subunit I gene as standard DNA barcoding region for species identification and discovery has been very limited. Here, we present an integrated study, based on both morphological analyses, acanthocephalans belonging to genus Polymorphus , whose larvae (cystacanths) are commonly found in mesentery freshwater fishes, while adults intestine fish‐eating birds. The alpha taxonomy helminths is...
The A canthocephala is a phylum of obligate endoparasitic animals comprising four classes ( rchiacanthocephala, P alaeacanthocephala, E oacanthocephala and olyacanthocephala), although the phylogenetic interrelationships these still remains unresolved. To investigate relationships major acanthocephalan groups, we characterized complete mitochondrial genome sequences two palaeacanthocephalan species C entrorhynchus aluconis rosthorhynchus transversus (representing different families order...
Species of Pseudocorynosoma are North and South American acanthocephalans that use waterfowl as definitive hosts amphipods intermediate hosts, whereas species Andracantha occur in fish-eating birds with a worldwide distribution. were originally described Corynosoma (now restricted to endoparasites marine mammals). Morphologically, is distinct from other genera Polymorphidae possessing 2 fields spines on the trunk, have single field. A recent phylogenetic hypothesis based morphological...
The genus Southwellina is composed of 3 described species, i.e., S. hispida (the type species), dimorpha, and macracanthus. All are endoparasites fish-eating birds that have worldwide distributions. Morphologically, the characterized by possessing a short compact trunk, 2 fields spines in anterior region trunk (in at least 1 sex), cylindrical proboscis (sometimes with swollen armed numerous longitudinal rows hooks), double-walled receptacle, 4 tubular cement glands males. In current study,...