Altered rest-activity patterns evolve via circadian independent mechanisms in cave adapted balitorid loaches
Circadian rhythms and rest homeostasis are independent processes, each regulating important components of rest-activity patterns. Evolutionarily, the two are distinct from one another; total rest time is maintained unaffected even when circadian pacemaker cells are ablated. Throughout the animal kin...
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| Veröffentlicht in: | PloS one 2012-02, Vol.7 (2), p.e30868-e30868 |
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| description | Circadian rhythms and rest homeostasis are independent processes, each regulating important components of rest-activity patterns. Evolutionarily, the two are distinct from one another; total rest time is maintained unaffected even when circadian pacemaker cells are ablated. Throughout the animal kingdom, there exists a huge variation in rest-activity patterns, yet it is unclear how these behaviors have evolved. Here we show that four species of balitorid cavefish have greatly reduced rest times in comparison to rest times of their surface relatives. All four cave species retained biological rhythmicity, and in three of the four there is a pronounced 24-hour rhythm; in the fourth there is an altered rhythmicity of 38-40 hours. Thus, consistent changes in total rest have evolved in these species independent of circadian rhythmicity. Taken together, our data suggest that consistent reduction in total rest times were accomplished evolutionarily through alterations in rest homeostasis. |
| doi_str_mv | 10.1371/journal.pone.0030868 |
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Taken together, our data suggest that consistent reduction in total rest times were accomplished evolutionarily through alterations in rest homeostasis.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0030868</identifier><identifier>PMID: 22348026</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Activity patterns ; Analysis ; Animal behavior ; Animals ; Behavior, Animal ; Biological Evolution ; Biology ; Cavernicolous species ; Caves ; Characiformes ; Circadian rhythm ; Circadian Rhythm - physiology ; Circadian rhythms ; Cypriniformes - physiology ; Developmental biology ; Drosophila ; Gene expression ; Homeostasis ; Insects ; Mutation ; Nemacheilus troglocataractus ; Neurosciences ; Organisms ; Rest ; Rest - physiology ; Rodents ; Saguinus oedipus ; Siluriformes ; Sleep deprivation ; Sleep disorders ; Teleostei ; Vertebrates ; Zebrafish</subject><ispartof>PloS one, 2012-02, Vol.7 (2), p.e30868-e30868</ispartof><rights>COPYRIGHT 2012 Public Library of Science</rights><rights>2012 Duboué, Borowsky. This is an open-access article distributed under the terms of the Creative Commons Attribution License: https://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>Duboué, Borowsky. 2012</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c691t-76912794eb091af274e437258eec4d6b4ae1bbcd0e20c6dd8797768bdad4337e3</citedby><cites>FETCH-LOGICAL-c691t-76912794eb091af274e437258eec4d6b4ae1bbcd0e20c6dd8797768bdad4337e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3278411/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3278411/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,2096,2915,23845,27901,27902,53766,53768,79569,79570</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22348026$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Duboué, Erik R</creatorcontrib><creatorcontrib>Borowsky, Richard L</creatorcontrib><title>Altered rest-activity patterns evolve via circadian independent mechanisms in cave adapted balitorid loaches</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>Circadian rhythms and rest homeostasis are independent processes, each regulating important components of rest-activity patterns. Evolutionarily, the two are distinct from one another; total rest time is maintained unaffected even when circadian pacemaker cells are ablated. Throughout the animal kingdom, there exists a huge variation in rest-activity patterns, yet it is unclear how these behaviors have evolved. Here we show that four species of balitorid cavefish have greatly reduced rest times in comparison to rest times of their surface relatives. All four cave species retained biological rhythmicity, and in three of the four there is a pronounced 24-hour rhythm; in the fourth there is an altered rhythmicity of 38-40 hours. Thus, consistent changes in total rest have evolved in these species independent of circadian rhythmicity. 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Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Duboué, Erik R</au><au>Borowsky, Richard L</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Altered rest-activity patterns evolve via circadian independent mechanisms in cave adapted balitorid loaches</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2012-02-13</date><risdate>2012</risdate><volume>7</volume><issue>2</issue><spage>e30868</spage><epage>e30868</epage><pages>e30868-e30868</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Circadian rhythms and rest homeostasis are independent processes, each regulating important components of rest-activity patterns. Evolutionarily, the two are distinct from one another; total rest time is maintained unaffected even when circadian pacemaker cells are ablated. Throughout the animal kingdom, there exists a huge variation in rest-activity patterns, yet it is unclear how these behaviors have evolved. Here we show that four species of balitorid cavefish have greatly reduced rest times in comparison to rest times of their surface relatives. All four cave species retained biological rhythmicity, and in three of the four there is a pronounced 24-hour rhythm; in the fourth there is an altered rhythmicity of 38-40 hours. Thus, consistent changes in total rest have evolved in these species independent of circadian rhythmicity. Taken together, our data suggest that consistent reduction in total rest times were accomplished evolutionarily through alterations in rest homeostasis.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>22348026</pmid><doi>10.1371/journal.pone.0030868</doi><tpages>e30868</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Activity patterns Analysis Animal behavior Animals Behavior, Animal Biological Evolution Biology Cavernicolous species Caves Characiformes Circadian rhythm Circadian Rhythm - physiology Circadian rhythms Cypriniformes - physiology Developmental biology Drosophila Gene expression Homeostasis Insects Mutation Nemacheilus troglocataractus Neurosciences Organisms Rest Rest - physiology Rodents Saguinus oedipus Siluriformes Sleep deprivation Sleep disorders Teleostei Vertebrates Zebrafish |
| title | Altered rest-activity patterns evolve via circadian independent mechanisms in cave adapted balitorid loaches |
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