The phenotypic plasticity in Chinese populations of Daphnia similoides sinensis: recurvate helmeted forms are associated with the presence of predators

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F16%3A10326172" target="_blank" >RIV/00216208:11310/16:10326172 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1093/plankt/fbw031" target="_blank" >http://dx.doi.org/10.1093/plankt/fbw031</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/plankt/fbw031" target="_blank" >10.1093/plankt/fbw031</a>

Result language

angličtina

Original language name

The phenotypic plasticity in Chinese populations of Daphnia similoides sinensis: recurvate helmeted forms are associated with the presence of predators

Original language description

Morphological species delineation within the cladoceran genus Daphnia is often blurred by phenotypic plasticity, frequently associated with predator presence. We focused on phenotypic variation and genetic relatedness of nine Chinese populations of Daphnia (Ctenodaphnia) similoides sinensis. The typical form of this taxon inhabits fishless pools, a habitat characteristic for most Ctenodaphnia species. However, we demonstrate that D. similoides sinensis also occurs in large lakes where it coexists with multiple predators (planktivorous fish, Cyclops and Leptodora). Individuals from such lakes differ substantially phenotypically (to the extent they have been considered a distinct undescribed species), being significantly smaller and exhibiting prominent recurvate helmets. Genetic variation of D. similoides sinensis, based on mitochondrial cytochrome c oxidase subunit 1 sequences, was low; all Chinese populations studied, regardless of phenotype or environment, apparently recently expanded from a single mitochondrial lineage. This is consistent with other Daphnia species in which body and helmet size are phenotypically plastic traits responding to predator presence. The general phenotype of lake populations of D. similoides sinensis is strikingly similar to North American Daphnia retrocurva, an unrelated species of the subgenus Daphnia. We presume that similar predation pressures in lake habitats triggered convergent evolution of body shapes in both species.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EG - Zoology

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Name of the periodical

Journal of Plankton Research

ISSN

0142-7873

e-ISSN

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Volume of the periodical

38

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

855-864

UT code for WoS article

000381692300007

EID of the result in the Scopus database

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