Extremely rapid maturation of a wild African annual fish

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F18%3A43897353" target="_blank" >RIV/60076658:12520/18:43897353 - isvavai.cz</a>

Alternative codes found

RIV/68081766:_____/18:00492014 RIV/00216208:11310/18:10390751

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0960982218308224" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0960982218308224</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cub.2018.06.031" target="_blank" >10.1016/j.cub.2018.06.031</a>

Result language

angličtina

Original language name

Extremely rapid maturation of a wild African annual fish

Original language description

Ephemeral habitats can impose challenging conditions for population persistence. Survival strategies in these environments can range from high dispersal capacity to the evolution of dormant stages able to tolerate a harsh environment outside the temporal window of favourable conditions [1]. Annual killifish have evolved to live in seasonal pools on the African savannah and display a range of adaptations to cope with an unpredictable environment 2, 3. For most of the year, killifish populations survive as diapausing embryos buried in dry sediment. When savannah depressions fill with rainwater, the fish hatch, grow rapidly and, after attaining sexual maturity, reproduce daily 2, 4. Nothobranchius furzeri, a model species in ageing research 2, 3, is distributed in a region where the climate is particularly dry and rains are unpredictable [5]. Here, we demonstrate that the fast juvenile growth and rapid sexual maturation shown by N. furzeri in captivity is actually an underestimate of their natural developmental rate. We estimated the age of N. furzeri in natural populations by counting daily-deposited increments in the otoliths and performing histological analysis of gonads. We found that N. furzeri are capable of reaching sexual maturity within 14 days after hatching, which to our knowledge is the fastest rate of sexual maturation recorded for a vertebrate. We also demonstrate that N. furzeri can grow from an initial length of 5 mm up to 54 mm over the course of a two-week period. Such rapid juvenile development is likely to be adaptive since some pools were entirely desiccated 3–5 weeks after filling, but retained a viable killifish population that reproduced before the adults succumbed to the disappearance of their pool.

Czech name

—

Czech description

—

Type

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

CEP classification

—

OECD FORD branch

10604 - Reproductive biology (medical aspects to be 3)

Project

<a href="/en/project/GA16-00291S" target="_blank" >GA16-00291S: Ageing in the wild: from demography to gene expression</a><br>

Continuities

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Publication year

2018

Confidentiality

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

Name of the periodical

Current Biology

ISSN

0960-9822

e-ISSN

—

Volume of the periodical

28

Issue of the periodical within the volume

15

Country of publishing house

US - UNITED STATES

Number of pages

4

Pages from-to

"R822"-"R824"

UT code for WoS article

000440787800006

EID of the result in the Scopus database

2-s2.0-85050888905