Rapid Parallel Morphological and Mechanical Diversification of South American Pike Cichlids (Crenicichla)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F23%3A43906394" target="_blank" >RIV/60076658:12310/23:43906394 - isvavai.cz</a>

Result on the web

<a href="https://academic.oup.com/sysbio/article/72/1/120/6542329?login=true" target="_blank" >https://academic.oup.com/sysbio/article/72/1/120/6542329?login=true</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/sysbio/syac018" target="_blank" >10.1093/sysbio/syac018</a>

Result language

angličtina

Original language name

Rapid Parallel Morphological and Mechanical Diversification of South American Pike Cichlids (Crenicichla)

Original language description

Explosive bouts of diversification are one of the most conspicuous features of the tree of life. When such bursts are repeated in similar environments, it suggests some degree of predictability in the evolutionary process. We assess parallel adaptive radiation of South American pike cichlids (Crenicichla) using phylogenomics and phylogenetic comparative methods. We find that species flocks in the Uruguay and Iguazu River basins rapidly diversified into the same set of ecomorphs that reflect feeding ecology. Both adaptive radiations involve expansion of functional morphology, resulting in unique jaw phenotypes. Yet, form and function were decoupled such that most ecomorphs share similar mechanical properties of the jaws (i.e., jaw motion during a feeding strike). Prey mobility explained 6- to 9-fold differences in the rate of morphological evolution but had no effect on the rate of mechanical evolution. We find no evidence of gene flow between species flocks or with surrounding coastal lineages that may explain their rapid diversification. When compared with cichlids of the East African Great Lakes and other prominent adaptive radiations, pike cichlids share many themes, including the rapid expansion of phenotypic diversity, specialization along the benthic-to-pelagic habitat and soft-to-hard prey axes, and the evolution of conspicuous functional innovations. Yet, decoupled evolution of form and function and the absence of hybridization as a catalyzing force are departures from patterns observed in other adaptive radiations. Many-to-one mapping of morphology to mechanical properties is a mechanism by which pike cichlids attain a diversity of feeding ecologies while avoiding exacerbating underlying mechanical trade-offs. [Adaptive radiation; ecological opportunity; feeding kinematics; functional trade-off; hybridization; introgression.]

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

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

Project

<a href="/en/project/GA19-20012S" target="_blank" >GA19-20012S: Genomics of replicated cichlid diversification in rivers: The role of hybridization in adaptive radiation of Neotropical pike cichlids (Crenicichla)</a><br>

Continuities

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

Publication year

2023

Confidentiality

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

Name of the periodical

Systematic Biology

ISSN

1063-5157

e-ISSN

1076-836X

Volume of the periodical

72

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

14

Pages from-to

120-133

UT code for WoS article

000785562100001

EID of the result in the Scopus database

2-s2.0-85171196314