Repeated intraspecific divergence in life span and aging of African annual fishes along an aridity gradient
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F17%3A00467272" target="_blank" >RIV/68081766:_____/17:00467272 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/17:10338214
Result on the web
<a href="http://dx.doi.org/10.1111/evo.13127" target="_blank" >http://dx.doi.org/10.1111/evo.13127</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/evo.13127" target="_blank" >10.1111/evo.13127</a>
Alternative languages
Result language
angličtina
Original language name
Repeated intraspecific divergence in life span and aging of African annual fishes along an aridity gradient
Original language description
Life span and aging are substantially modified by natural selection. Across species, higher extrinsic (environmentally related) mortality (and hence shorter life expectancy) selects for the evolution of more rapid aging. However, among populations within species, high extrinsic mortality can lead to extended life span and slower aging as a consequence of condition-dependent survival. Using within-species contrasts of eight natural populations of Nothobranchius fishes in common garden experiments, we demonstrate that populations originating fromdry regions (with short life expectancy) had shorter intrinsic life spans and a greater increase in mortality with age, more pronounced cellular and physiological deterioration (oxidative damage, tumor load), and a faster decline in fertility than populations from wetter regions. This parallel intraspecific divergence in life span and aging was not associated with divergence in early life history (rapid growth, maturation) or pace-of-life syndrome (high metabolic rates, active behavior). Variability across four study species suggests that a combination of different aging and life-history traits conformed with or contradicted the predictions for each species. These findings demonstrate that variation in life span and functional decline among natural populations are linked, genetically underpinned, and can evolve relatively rapidly.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10618 - Ecology
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Evolution
ISSN
0014-3820
e-ISSN
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Volume of the periodical
71
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
17
Pages from-to
386-402
UT code for WoS article
000394985200015
EID of the result in the Scopus database
2-s2.0-85011822012