Related Experiment Video
Updated: May 18, 2026
16:17
The ITS2 Database
Published on: March 12, 2012
The iPhyClassifier, an interactive online tool for phytoplasma classification and taxonomic assignment.
Yan Zhao1, Wei Wei, Ing-Ming Lee
1Molecular Plant Pathology Laboratory, USDA-Agricultural Research Service, Beltsville, MD, USA. yan.zhao@ars.usda.gov
Methods in Molecular Biology (Clifton, N.J.)
|September 19, 2012
Summary
iPhyClassifier is a web tool for identifying phytoplasmas using simulated RFLP analysis. It aids in classifying known and potentially new phytoplasma strains based on sequence data and similarity scores.
Area of Science:
- Phytopathology
- Bioinformatics
- Molecular Biology
Background:
- Phytoplasmas are plant pathogens with complex taxonomy.
- Accurate identification and classification are crucial for disease management.
- Current methods can be labor-intensive and time-consuming.
Purpose of the Study:
- To introduce iPhyClassifier, an internet-based tool for phytoplasma identification and classification.
- To provide a rapid and efficient method for analyzing phytoplasma strains.
- To support the taxonomic classification of 'Candidatus Phytoplasma' species.
Main Methods:
- Simulates restriction enzyme digestion and gel electrophoresis to generate virtual RFLP patterns.
- Aligns query sequences with reference strains of known 'Candidatus Phytoplasma' species.
- Calculates sequence similarity scores and RFLP pattern similarity coefficients.
Main Results:
- Provides instant suggestions for phytoplasma group and subgroup classification.
- Assigns phytoplasma strains to 'Ca. Phytoplasma' species based on established guidelines.
- Facilitates the delineation of potentially novel phytoplasma groups, subgroups, and species.
Conclusions:
- iPhyClassifier offers a valuable computational approach for phytoplasma taxonomy.
- The tool enhances the speed and accuracy of phytoplasma identification and classification.
- It aids researchers in understanding phytoplasma diversity and evolution.
Related Concept Videos
01:24Microbial Classification System
Classification is the process of organizing organisms into hierarchically inclusive groups based on their phenotypic similarities or evolutionary relationships. A species comprises one or more strains, and closely related species are grouped into genera. Genera are further classified into families, families into orders, orders into classes, and so forth, up to the domain level, which is the broadest taxonomic rank derived from a combination of phenotypic and genotypic data.The nomenclature of...
01:22Phylogenetic Species Concept in Microbiology
The phylogenetic species concept (PSC) is a framework used to delineate species based on evolutionary relationships, emphasizing shared ancestry and diagnosable genetic traits. Unlike morphological or biological species concepts, the PSC is particularly advantageous for microbial taxonomy, where traditional reproductive or phenotypic criteria often fall short due to the prevalence of asexual reproduction, minimal morphological differentiation, and widespread horizontal gene transfer among...
01:28Methods of Classification and Identification
Bacterial identification relies on a diverse array of techniques to classify and understand microorganisms, each tailored to uncover specific characteristics. Traditional morphological approaches, while still valuable, are limited for closely related or structurally simple organisms. Modern methods integrate biochemical, serological, genetic, and advanced molecular tools to achieve greater accuracy.Morphological and Biochemical TechniquesMorphological characteristics, such as cell shape 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,...
01:24Bacterial Phylum Tenericutes
The phylum Tenericutes, which includes the single class Mollicutes, comprises bacteria that lack cell walls. The term "Mollicutes" derives from the Latin word mollis, meaning "soft." These organisms are among the smallest known and are commonly referred to as mycoplasmas due to the prominence of the genus Mycoplasma, which includes well-known human pathogens. Despite their inability to stain gram-positively (a result of their lack of cell walls), mycoplasmas are phylogenetically related to the...
01:28Microbial Phylogeny
Understanding the evolutionary relationships among microorganisms is fundamental to microbial ecology and taxonomy. Phylogenetic trees are essential tools for inferring these relationships, relying primarily on comparative analyses of molecular sequences such as DNA, RNA, or proteins. In microbial studies, these trees typically depict the evolutionary paths of diverse bacterial and archaeal species by mapping genetic differences accumulated over time.Phylogenetic trees are composed of tips,...