Maternal source of variability in the embryo development of an annual killifish

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F17%3A00472362" target="_blank" >RIV/68081766:_____/17:00472362 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1111/jeb.13038" target="_blank" >http://dx.doi.org/10.1111/jeb.13038</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jeb.13038" target="_blank" >10.1111/jeb.13038</a>

Result language

angličtina

Original language name

Maternal source of variability in the embryo development of an annual killifish

Original language description

Organisms inhabiting unpredictable environments often evolve diversified reproductive bet-hedging strategies, expressed as production of multiple offspring phenotypes, thereby avoiding complete reproductive failure. To cope with unpredictable rainfall, African annual killifish from temporary savannah pools lay drought-resistant eggs that vary widely in the duration of embryo development. We examined the sources of variability in the duration of individual embryo development, egg production and fertilization rate in Nothobranchius furzeri. Using a quantitative genetics approach (North Carolina type II design), we found support for maternal effects rather than polyandrous mating as the primary source of the variability in the duration of embryo development. The number of previously laid eggs appeared to serve as an internal physiological cue initiating a shift from rapid-to-slow embryo developmental mode. In annual killifish, extensive phenotypic variability in progeny traits is adaptive, as the conditions experienced by parents have limited relevance to the offspring generation. In contrast to genetic control, with high phenotypic expression and heritability, maternal control of traits under natural selection prevents standing genetic diversity from potentially detrimental effects of selection in fluctuating environments.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology

Project

<a href="/en/project/GAP506%2F11%2F0112" target="_blank" >GAP506/11/0112: The evolution and life-history consequences of rapid ageing</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Evolutionary Biology

ISSN

1010-061X

e-ISSN

—

Volume of the periodical

30

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

738-749

UT code for WoS article

000398682700006

EID of the result in the Scopus database

2-s2.0-85010888126