Phylogenetic inertia or phylogenetic constraint refers to the limitations on the future evolutionary pathways that have been imposed by previous adaptations.[1]
Charles Darwin first recognized this phenomenon, though the term was later coined by Huber in 1939.[2] Darwin explained the idea of phylogenetic inertia based on his observations; he spoke about it when explaining the "Law of Conditions of Existence".[3] Darwin also suggested that, after speciation, the organisms do not start over from scratch, but have characteristics that are built upon already existing ones that were inherited from their ancestors; and these characteristics likely limit the amount of evolution seen in that new taxa.[4] This is the main concept of phylogenetic inertia.
Richard Dawkins also explained these constraints by likening natural selection to a river in his 1982 book The Extended Phenotype.[5]
^Johnson, K; McKinney, F; Sorenson, M (1999). "Phylogenetic constraint on male parental care in the dabbling ducks". Proceedings of the Royal Society of London B. 266 (1421): 759–763. doi:10.1098/rspb.1999.0702. PMC 1689901.
^Huber, B (1939). "Siebrohrensystem unserer Baume und seine jahreszeitlichen Veranderungen". Jahrbücher für Wissenschaftliche Botanik. 88: 176–242.
^Cite error: The named reference :4 was invoked but never defined (see the help page).
^Shanahan, Timothy (2011). "Phylogenetic Inertia and Darwin's Higher Law". Studies in History and Philosophy of Biological and Biomedical Sciences.
^Dawkins, Richard (1982). The Extended Phenotype: The Gene as a Unit of Selection. Oxford University Press. p. 42.
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