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Domestication and the behavior-genetic analysis of captive populations
Captive environments are believed to produce behavioral changes in animal populations that may limit our ability to generalize back to natural populations. These behavioral changes are thought to be associated with one or both of the following: (a) changes in frequencies of genes or gene complexes d...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Published by Elsevier B.V.
1987
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7133803/ https://www.ncbi.nlm.nih.gov/pubmed/32287572 http://dx.doi.org/10.1016/0168-1591(87)90257-7 |
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author | Ricker, Jeffry P. Skoog, Linda A. Hirsch, Jerry |
author_facet | Ricker, Jeffry P. Skoog, Linda A. Hirsch, Jerry |
author_sort | Ricker, Jeffry P. |
collection | PubMed |
description | Captive environments are believed to produce behavioral changes in animal populations that may limit our ability to generalize back to natural populations. These behavioral changes are thought to be associated with one or both of the following: (a) changes in frequencies of genes or gene complexes due to the effects of inbreeding or to changes in selection pressure; (b) changes in development of the phenotype due to the effects of changes in environmental variables. Inbreeding leads to increase in homozygosity, that may result in developmental anomalies because of a breakdown in developmental homeostasis. Changes in selection pressure may disrupt coadapted gene complexes that have evolved in the wild. Often, domestication is believed to result in individuals that are “degenerate”; i.e. inferior to individuals in the wild. However, this notion has received no empirical support. In fact, if phenotype changes do occur under domestication, these are usually quantitative, not qualitative, in nature. We suggest that the study of the domestication process may reveal evolutionary principles that would be difficult to discover in other ways, and the zoological parks may be ideal situations for such research. |
format | Online Article Text |
id | pubmed-7133803 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 1987 |
publisher | Published by Elsevier B.V. |
record_format | MEDLINE/PubMed |
spelling | pubmed-71338032020-04-08 Domestication and the behavior-genetic analysis of captive populations Ricker, Jeffry P. Skoog, Linda A. Hirsch, Jerry Appl Anim Behav Sci Article Captive environments are believed to produce behavioral changes in animal populations that may limit our ability to generalize back to natural populations. These behavioral changes are thought to be associated with one or both of the following: (a) changes in frequencies of genes or gene complexes due to the effects of inbreeding or to changes in selection pressure; (b) changes in development of the phenotype due to the effects of changes in environmental variables. Inbreeding leads to increase in homozygosity, that may result in developmental anomalies because of a breakdown in developmental homeostasis. Changes in selection pressure may disrupt coadapted gene complexes that have evolved in the wild. Often, domestication is believed to result in individuals that are “degenerate”; i.e. inferior to individuals in the wild. However, this notion has received no empirical support. In fact, if phenotype changes do occur under domestication, these are usually quantitative, not qualitative, in nature. We suggest that the study of the domestication process may reveal evolutionary principles that would be difficult to discover in other ways, and the zoological parks may be ideal situations for such research. Published by Elsevier B.V. 1987-07 2003-10-02 /pmc/articles/PMC7133803/ /pubmed/32287572 http://dx.doi.org/10.1016/0168-1591(87)90257-7 Text en Copyright © 1987 Published by Elsevier B.V. Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active. |
spellingShingle | Article Ricker, Jeffry P. Skoog, Linda A. Hirsch, Jerry Domestication and the behavior-genetic analysis of captive populations |
title | Domestication and the behavior-genetic analysis of captive populations |
title_full | Domestication and the behavior-genetic analysis of captive populations |
title_fullStr | Domestication and the behavior-genetic analysis of captive populations |
title_full_unstemmed | Domestication and the behavior-genetic analysis of captive populations |
title_short | Domestication and the behavior-genetic analysis of captive populations |
title_sort | domestication and the behavior-genetic analysis of captive populations |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7133803/ https://www.ncbi.nlm.nih.gov/pubmed/32287572 http://dx.doi.org/10.1016/0168-1591(87)90257-7 |
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