A Protocol for Horizontally Acquired Metabolic Gene Detection in Algae

Area of Science:

• Genomics
• Evolutionary Biology
• Bioinformatics

Background:

• Horizontal gene transfer (HGT) is crucial for prokaryotic evolution and adaptation.
• Phylogenetic methods for cataloging HGT are often limited by insufficient genomic data.
• Identifying foreign genes is essential for understanding genome evolution.

Purpose of the Study:

• To describe a novel HGT quantification protocol.
• To identify foreign genes using a combination of computational approaches.
• To provide a robust method for analyzing HGT in prokaryotes.

Main Methods:

• Integrative segmentation and clustering method.
• Comparative genomics approach.
• Phylogenetic tree reconstruction.

Main Results:

• The protocol identifies foreign genes supported by multiple lines of evidence.
• Evidence includes atypical gene composition and distribution.
• Aberrant phylogenetic patterns also indicate foreign genes.

Conclusions:

• The described protocol offers a robust method for HGT quantification.
• It overcomes limitations of traditional phylogenetic methods.
• Facilitates a deeper understanding of prokaryotic genome evolution and adaptation.