Related Experiment Video
Updated: May 11, 2026
10:44
Generating Whole Bacterial Genomes from Clinical Samples using a Target Enrichment Workflow
Published on: August 15, 2025
Genetic diversity in Trichomonas vaginalis
1Department of Microbiology, University of Mississippi Medical Center, Jackson, Mississippi, USA.
Sexually Transmitted Infections
|May 25, 2013
Summary
Genetic diversity in Trichomonas vaginalis correlates with clinical variability. Further research using standardized genotyping methods like microsatellite analysis is needed to understand these genotype-phenotype associations.
Area of Science:
- Microbiology
- Genetics
- Infectious Diseases
Background:
- Trichomoniasis, caused by Trichomonas vaginalis, exhibits significant clinical variability.
- This variability may be linked to the genetic diversity within the parasite itself.
- Previous studies have shown high genetic heterogeneity in Trichomonas vaginalis isolates.
Purpose of the Study:
- To explore the relationship between the genetic identity of Trichomonas vaginalis isolates and their clinical manifestations.
- To identify robust genotyping techniques for future parasite investigations.
- To address conflicting evidence regarding genotype-phenotype correlations.
Main Methods:
- Utilized multiple genotyping techniques to assess genetic heterogeneity.
- Identified a unique two-type population structure with evidence of recombination.
- Acknowledged conflicting findings on correlations with clinical presentation, drug susceptibility, and viral presence.
Main Results:
- Significant genetic diversity exists within Trichomonas vaginalis isolates.
- A distinct population structure was identified, with limited recombination between groups.
- Evidence suggests a link between genetic identity and clinical variability.
Conclusions:
- The genetic makeup of Trichomonas vaginalis influences its clinical presentation.
- A standardized approach to parasite genotyping is crucial.
- Microsatellite genotyping and multilocus sequence typing are recommended for future studies on genotype-phenotype associations.
Related Concept Videos
01:15Diversity of Protists I
Excavata is a diverse group of protists that includes both chemoorganotrophic and phototrophic species, with some thriving in anaerobic environments. Among the key groups within Excavata are diplomonads and parabasalids, which are flagellated protists that lack mitochondria and chloroplasts. These microorganisms typically inhabit anoxic environments, such as the intestines of animals, where they exist either symbiotically or as parasites, relying on fermentation for energy production. Some...
01:27Diversity of Protists IV
Amoebozoa represent a diverse group of terrestrial and aquatic protists that utilize lobe-shaped pseudopodia for locomotion and feeding. This characteristic differentiates them from the Rhizaria, which possess threadlike pseudopodia. The primary classifications within Amoebozoa include gymnamoebas, entamoebas, and the plasmodial and cellular slime molds. Phylogenetic evidence indicates that Amoebozoa diverged from a lineage that ultimately gave rise to fungi and animals.Gymnamoebas and...
01:27Diversity of Protists III
Rhizaria are a diverse group of unicellular protists characterized by their threadlike cytoplasmic extensions known as pseudopodia. These structures aid in both locomotion and feeding, giving Rhizaria an amoeboid appearance. Their amoeboid morphology once led to taxonomic confusion, but molecular phylogenetics has clarified their evolutionary placement and emphasized their shared use of pseudopodia despite divergent lineages.This clade comprises diverse lineages such as Chlorarachniophyta,...
01:27Diversity of Protists II
Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
01:28Microbiota of the Urogenital Tract
The human urogenital system, once thought to be sterile in healthy individuals, is now recognized as a complex microbial habitat. Advancements in molecular sequencing techniques have revealed that even in healthy adults, the kidneys and bladder harbor microbial populations similar to those found in the distal urethra, albeit in much lower abundance. These resident microorganisms, while generally innocuous, can become opportunistic pathogens under conditions that alter the urogenital...
01:25Genetic Variation
Genetic variation is the diversity in DNA sequences found among individuals of the same species. This diversity is crucial for a species' survival because it helps organisms adapt to environmental changes. Genetic variation begins with fertilization, where an egg and sperm cell merge. Each of these cells carries 23 chromosomes, up to 46 in the fertilized egg. Chromosomes are long DNA strands that contain genes, the basic units of heredity.
Genes exist in different versions called alleles, which...
Genes exist in different versions called alleles, which...