Source:http://linkedlifedata.com/resource/pubmed/id/14667379
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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
2003-12-11
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pubmed:abstractText |
Evolutionary theories of senescence postulate that lifespan is determined by the age-dependent decrease in the effects of natural selection. Factors that influence survival and reproduction at early life stages have a larger impact on fitness than factors that influence later life stages. According to these views, selection for rapid sexual maturation and a steep age-dependent decrease in fitness drive the evolution of short lifespans. Here, we report on the survival trajectory of Nothobranchius furzeri (Pisces: Ciprinodontidae): a member of a group of annual species found in temporary bodies of water whose life expectancy in the wild is limited to a few months. We find that maximum survival of N. furzeri in the laboratory is less than 12 weeks. The temporal trajectory of survival shows an age-dependent increase in the mortality rate that is typical of organisms with defined lifespans. The lifespan of N. furzeri is exceptionally short for a vertebrate: owing to its small size and the possibility of propagation in captivity, N. furzeri could be used as a convenient model for ageing research.
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pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/14667379-10716732,
http://linkedlifedata.com/resource/pubmed/commentcorrection/14667379-11017081,
http://linkedlifedata.com/resource/pubmed/commentcorrection/14667379-11792861,
http://linkedlifedata.com/resource/pubmed/commentcorrection/14667379-11869731,
http://linkedlifedata.com/resource/pubmed/commentcorrection/14667379-12213556,
http://linkedlifedata.com/resource/pubmed/commentcorrection/14667379-42059,
http://linkedlifedata.com/resource/pubmed/commentcorrection/14667379-4696516,
http://linkedlifedata.com/resource/pubmed/commentcorrection/14667379-5042930,
http://linkedlifedata.com/resource/pubmed/commentcorrection/14667379-6015424,
http://linkedlifedata.com/resource/pubmed/commentcorrection/14667379-7475352,
http://linkedlifedata.com/resource/pubmed/commentcorrection/14667379-8707063,
http://linkedlifedata.com/resource/pubmed/commentcorrection/14667379-9007227,
http://linkedlifedata.com/resource/pubmed/commentcorrection/14667379-9599158
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0962-8452
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
7
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pubmed:volume |
270 Suppl 2
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
S189-91
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pubmed:dateRevised |
2009-11-18
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pubmed:meshHeading | |
pubmed:year |
2003
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pubmed:articleTitle |
Extremely short lifespan in the annual fish Nothobranchius furzeri.
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pubmed:affiliation |
Associazione Italiana Killifish, Canossa 42026, Italy.
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pubmed:publicationType |
Journal Article,
Comparative Study
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