The Search for Common Origin: Homology Revisited.

Autor: Ochoterena H; Instituto de Biología, Universidad Nacional Autónoma de México, Apdo. Postal 70-233, CdMx 04510, Mexico., Vrijdaghs A; Ecology, Evolution and Biodiversity Conservation, KU Leuven, Kasteelpark Arenberg 31, Box 2437, BE-3001 Leuven, Belgium.; Botanic Garden Meise, Nieuwelaan 38 BE-1860 Meise, Belgium., Smets E; Ecology, Evolution and Biodiversity Conservation, KU Leuven, Kasteelpark Arenberg 31, Box 2437, BE-3001 Leuven, Belgium.; Naturalis Biodiversity Center, PO Box 9517, 2300 RA, Leiden, The Netherlands., Claßen-Bockhoff R; Institute of Organismic and Molecular Evolution (iomE), Johannes Gutenberg-Universität Mainz, Saarstraße, 55099 Mainz, Germany.
Jazyk: angličtina
Zdroj: Systematic biology [Syst Biol] 2019 Sep 01; Vol. 68 (5), pp. 767-780.
DOI: 10.1093/sysbio/syz013
Abstrakt: Understanding the evolution of biodiversity on Earth is a central aim in biology. Currently, various disciplines of science contribute to unravel evolution at all levels of life, from individual organisms to species and higher ranks, using different approaches and specific terminologies. The search for common origin, traditionally called homology, is a connecting paradigm of all studies related to evolution. However, it is not always sufficiently taken into account that defining homology depends on the hierarchical level studied (organism, population, and species), which can cause confusion. Therefore, we propose a framework to define homologies making use of existing terms, which refer to homology in different fields, but restricting them to an unambiguous meaning and a particular hierarchical level. We propose to use the overarching term "homology" only when "morphological homology," "vertical gene transfer," and "phylogenetic homology" are confirmed. Consequently, neither phylogenetic nor morphological homology is equal to homology. This article is intended for readers with different research backgrounds. We challenge their traditional approaches, inviting them to consider the proposed framework and offering them a new perspective for their own research.
(© The Author(s) 2019. Published by Oxford University Press on behalf of the Society of Systematic Biologists.)
Databáze: MEDLINE
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