Evolution of the endothelin pathway drove neural crest cell diversification

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F20%3A10418190" target="_blank" >RIV/00216208:11310/20:10418190 - isvavai.cz</a>

Result on the web

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Xkm_Ta_zja" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Xkm_Ta_zja</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41586-020-2720-z" target="_blank" >10.1038/s41586-020-2720-z</a>

Result language

angličtina

Original language name

Evolution of the endothelin pathway drove neural crest cell diversification

Original language description

CRISPR-Cas9-mediated disruption of the endothelin-signalling pathway in the sea lampreyPetromyzon marinusand the frogXenopus laeviswere used to delineate ancient and lineage-specific roles of endothelin signalling and provide insights into vertebrate evolution. Neural crest cells (NCCs) are migratory, multipotent embryonic cells that are unique to vertebrates and form an array of clade-defining adult features. The evolution of NCCs has been linked to various genomic events, including the evolution of new gene-regulatory networks(1,2), the de novo evolution of genes(3)and the proliferation of paralogous genes during genome-wide duplication events(4). However, conclusive functional evidence linking new and/or duplicated genes to NCC evolution is lacking. Endothelin ligands (Edns) and endothelin receptors (Ednrs) are unique to vertebrates(3,5,6), and regulate multiple aspects of NCC development in jawed vertebrates(7-10). Here, to test whether the evolution of Edn signalling was a driver of NCC evolution, we used CRISPR-Cas9 mutagenesis(11)to disruptedn,ednranddlxgenes in the sea lamprey,Petromyzon marinus. Lampreys are jawless fishes that last shared a common ancestor with modern jawed vertebrates around 500 million years ago(12). Thus, comparisons between lampreys and gnathostomes can identify deeply conserved and evolutionarily flexible features of vertebrate development. Using the frogXenopus laevisto expand gnathostome phylogenetic representation and facilitate side-by-side analyses, we identify ancient and lineage-specific roles for Edn signalling. These findings suggest that Edn signalling was activated in NCCs before duplication of the vertebrate genome. Then, after one or more genome-wide duplications in the vertebrate stem, paralogous Edn pathways functionally diverged, resulting in NCC subpopulations with different Edn signalling requirements. We posit that this new developmental modularity facilitated the independent evolution of NCC derivatives in stem vertebrates. Consistent with this, differences in Edn pathway targets are associated with differences in the oropharyngeal skeleton and autonomic nervous system of lampreys and modern gnathostomes. In summary, our work provides functional genetic evidence linking the origin and duplication of new vertebrate genes with the stepwise evolution of a defining vertebrate novelty.

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

10613 - Zoology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

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

Name of the periodical

Nature

ISSN

0028-0836

e-ISSN

—

Volume of the periodical

585

Issue of the periodical within the volume

7826

Country of publishing house

GB - UNITED KINGDOM

Number of pages

6

Pages from-to

563-568

UT code for WoS article

000570130400007

EID of the result in the Scopus database

2-s2.0-85091138649