On the hodological criterion for homology
Owen’s pre-evolutionary definition of a homologue as the same organ in different animals under every variety of form and function and its redefinition after Darwin as the same trait in different lineages due to common ancestry entail the same heuristic problem: how to establish sameness. Although di...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2015-06-01
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| Series: | Frontiers in Neuroscience |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fnins.2015.00223/full |
| _version_ | 1811325219179069440 |
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| author | Macarena eFaunes Joao eFrancisco Botelho Joao eFrancisco Botelho Patricio eAhumada Galleguillos Jorge eMpodozis |
| author_facet | Macarena eFaunes Joao eFrancisco Botelho Joao eFrancisco Botelho Patricio eAhumada Galleguillos Jorge eMpodozis |
| author_sort | Macarena eFaunes |
| collection | DOAJ |
| description | Owen’s pre-evolutionary definition of a homologue as the same organ in different animals under every variety of form and function and its redefinition after Darwin as the same trait in different lineages due to common ancestry entail the same heuristic problem: how to establish sameness. Although different criteria for homology often conflict, there is currently a generalized acceptance of gene expression as the best criterion. This gene-centered view of homology results from a reductionist and preformationist concept of living beings. Here, we adopt an alternative organismic-epigenetic viewpoint, and conceive living beings as systems whose identity is given by the dynamic interactions between their components at their multiple levels of composition. We posit that there cannot be an absolute homology criterion, and instead, homology should be inferred from comparisons at the levels and developmental stages where the delimitation of the compared trait lies. In this line, we argue that neural connectivity, i.e., the hodological criterion, should prevail in the determination of homologies between brain supra-cellular structures, such as the vertebrate pallium. |
| first_indexed | 2024-04-13T14:29:17Z |
| format | Article |
| id | doaj.art-296a57002e854a81887ca501d58212c0 |
| institution | Directory Open Access Journal |
| issn | 1662-453X |
| language | English |
| last_indexed | 2024-04-13T14:29:17Z |
| publishDate | 2015-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Neuroscience |
| spelling | doaj.art-296a57002e854a81887ca501d58212c02022-12-22T02:43:13ZengFrontiers Media S.A.Frontiers in Neuroscience1662-453X2015-06-01910.3389/fnins.2015.0022399584On the hodological criterion for homologyMacarena eFaunes0Joao eFrancisco Botelho1Joao eFrancisco Botelho2Patricio eAhumada Galleguillos3Jorge eMpodozis4University of AucklandUniversity of AucklandUniversidade Federal de Santa CatarinaUniversidad de ChileUniversidad de ChileOwen’s pre-evolutionary definition of a homologue as the same organ in different animals under every variety of form and function and its redefinition after Darwin as the same trait in different lineages due to common ancestry entail the same heuristic problem: how to establish sameness. Although different criteria for homology often conflict, there is currently a generalized acceptance of gene expression as the best criterion. This gene-centered view of homology results from a reductionist and preformationist concept of living beings. Here, we adopt an alternative organismic-epigenetic viewpoint, and conceive living beings as systems whose identity is given by the dynamic interactions between their components at their multiple levels of composition. We posit that there cannot be an absolute homology criterion, and instead, homology should be inferred from comparisons at the levels and developmental stages where the delimitation of the compared trait lies. In this line, we argue that neural connectivity, i.e., the hodological criterion, should prevail in the determination of homologies between brain supra-cellular structures, such as the vertebrate pallium.http://journal.frontiersin.org/Journal/10.3389/fnins.2015.00223/fullAmygdalaevolutionCortexepigenesisorganizationDorsal ventricular ridge |
| spellingShingle | Macarena eFaunes Joao eFrancisco Botelho Joao eFrancisco Botelho Patricio eAhumada Galleguillos Jorge eMpodozis On the hodological criterion for homology Frontiers in Neuroscience Amygdala evolution Cortex epigenesis organization Dorsal ventricular ridge |
| title | On the hodological criterion for homology |
| title_full | On the hodological criterion for homology |
| title_fullStr | On the hodological criterion for homology |
| title_full_unstemmed | On the hodological criterion for homology |
| title_short | On the hodological criterion for homology |
| title_sort | on the hodological criterion for homology |
| topic | Amygdala evolution Cortex epigenesis organization Dorsal ventricular ridge |
| url | http://journal.frontiersin.org/Journal/10.3389/fnins.2015.00223/full |
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