Molecular phylogenetics
（重定向自Molecular systematics）
Molecular phylogenetics (/məˈlɛkjᵿlər ˌfaɪloʊdʒəˈnɛtɪks, mɒ-, moʊ-/) is the branch of phylogeny that analyses hereditary molecular differences, mainly in DNA sequences, to gain information on an organism's evolutionary relationships. The result of a molecular phylogenetic analysis is expressed in a phylogenetic tree. Molecular phylogenetics is one aspect of molecular systematics, a broader term that also includes the use of molecular data in taxonomy and biogeography.