Bichir external gills arise via heterochronic shift that accelerates hyoid arch development

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F19%3A10399391" target="_blank" >RIV/00216208:11310/19:10399391 - isvavai.cz</a>
Alternative codes found
RIV/00023272:_____/19:10134478
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=qm.~a7kn.a" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=qm.~a7kn.a</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.7554/eLife.43531" target="_blank" >10.7554/eLife.43531</a>

Result language
angličtina
Original language name
Bichir external gills arise via heterochronic shift that accelerates hyoid arch development
Original language description
In most vertebrates, pharyngeal arches form in a stereotypic anterior-to-posterior progression. To gain insight into the mechanisms underlying evolutionary changes in pharyngeal arch development, here we investigate embryos and larvae of bichirs. Bichirs represent the earliest diverged living group of ray-finned fishes, and possess intriguing traits otherwise typical for lobe-finned fishes such as ventral paired lungs and larval external gills. In bichir embryos, we find that the anteroposterior way of formation of cranial segments is modified by the unique acceleration of the entire hyoid arch segment, with earlier and orchestrated development of the endodermal, mesodermal, and neural crest tissues. This major heterochronic shift in the anteroposterior developmental sequence enables early appearance of the external gills that represent key breathing organs of bichir free-living embryos and early larvae. Bichirs thus stay as unique models for understanding developmental mechanisms facilitating increased breathing capacity.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10613 - Zoology

Project
<a href="/en/project/GA16-23836S" target="_blank" >GA16-23836S: Oro-pharyngeal interface: mapping gene expression patterns on the germ-layer dynamics during vertebrate primary mouth formation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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