A tool used in bioinformatics quantifies the difference between genomes or genetic sequences. For example, it might compare specific genes in different species or variations within the same species’ population. The resulting numerical value represents evolutionary divergence, allowing researchers to construct phylogenetic trees or analyze population structure.
This quantification of divergence is essential for understanding evolutionary relationships, tracking disease outbreaks, and managing conservation efforts for endangered species. Historically, such analysis relied on phenotypic comparisons, but advances in molecular biology have enabled more precise measurements based directly on genetic data. This shift has revolutionized fields like evolutionary biology, epidemiology, and conservation genetics.
