SpecI

SpecI performs species delineation of prokaryotic genomes by extracting and comparing 40 universal, single-copy phylogenetic marker genes against a database of 3,496 sequenced prokaryotic genomes to assign genomes to species clusters.

Key Features:

• Phylogenetic marker gene analysis: Uses a set of 40 universal, single-copy phylogenetic marker genes present across diverse prokaryotic genomes for comparative analysis.
• Automated species clustering: Compares marker gene sequences against a database of 3,496 sequenced prokaryotic genomes to group genomes into species clusters.
• Taxonomic discrepancy resolution: Identified 1,753 species clusters and resolved over 62% of discrepancies with existing taxonomic classifications, often supported by literature evidence.

Scientific Applications:

• Microbial diversity studies: Enables cataloging and assessment of prokaryotic diversity through species-level clustering based on marker genes.
• Evolutionary biology research: Supports inference of phylogenetic relationships and evolutionary histories among prokaryotes using conserved marker genes.
• Biotechnological applications: Provides species-level identification of microbial strains relevant to bioremediation and industrial microbiology.

Methodology:

Extraction of 40 universal, single-copy phylogenetic marker genes from genomic sequences, sequence comparison of those markers against a database of 3,496 sequenced prokaryotic genomes, and automated clustering of genomes into species clusters.