{"corpus_id":86160437,"paper_sha":"cbb0f3690661c288f1a383293a67d42218081e2c","doi":"10.1093/SYSBIO/20.4.406","arxiv_id":null,"pmid":null,"pmcid":null,"mag_id":2163892779,"dblp_id":null,"acl_id":null,"title":"Toward Defining the Course of Evolution: Minimum Change for a Specific Tree Topology","year":1971,"publication_date":"1971-12-01","venue":"","journal":{"name":"Systematic Biology","pages":"406-416","volume":"20"},"journal_issn":null,"journal_title":null,"publication_types":[],"pubmed_pub_types":null,"s2_fields_of_study":["Biology"],"reference_count":12,"citation_count":7700,"influential_citation_count":556,"is_open_access":false,"arxiv_categories":null,"arxiv_license":null,"arxiv_journal_ref":null,"mesh_headings":null,"chemicals":null,"comments_corrections":null,"source_flags":1,"s2_open_access_pdf_url":null,"s2_open_access_landing_url":null,"s2_open_access_license":null,"s2_open_access_status":null,"pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"Toward defining the course of evolution: minimum change for a specific tree topology. Syst. Zool., 20:406–416.—A method is presented that is asserted to provide all hypothetical ancestral character states that are consistent with describing the descent of the present-day character states in a minimum number of changes of state using a predetermined phylogenetic relationship among the taxa represented. 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