Convergent evolution of spherical shells in Miocene planktonic foraminifera documents the parallel emergence of a complex character in response to environmental forcing

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F23%3A10136103" target="_blank" >RIV/00023272:_____/23:10136103 - isvavai.cz</a>

Result on the web

<a href="https://www.cambridge.org/core/journals/paleobiology/article/convergent-evolution-of-spherical-shells-in-miocene-planktonic-foraminifera-documents-the-parallel-emergence-of-a-complex-character-in-response-to-environmental-forcing/F26FEC402FD603FDA18BE70488B3A71A" target="_blank" >https://www.cambridge.org/core/journals/paleobiology/article/convergent-evolution-of-spherical-shells-in-miocene-planktonic-foraminifera-documents-the-parallel-emergence-of-a-complex-character-in-response-to-environmental-forcing/F26FEC402FD603FDA18BE70488B3A71A</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1017/pab.2022.48" target="_blank" >10.1017/pab.2022.48</a>

Result language

angličtina

Original language name

Convergent evolution of spherical shells in Miocene planktonic foraminifera documents the parallel emergence of a complex character in response to environmental forcing

Original language description

The spherical encompassing final chamber of the planktonic foraminifera Orbulina universa is a prime example of a complex character whose evolution has been documented by a sequence of intermediate forms. However, the mechanism that induced evolution of the spherical chamber remain unclear. Here we show that shortly after the emergence of Orbulina, documented throughout the oceans, a convergent evolutionary transition occurred in the semi-isolated Paratethys, leading to the emergence of the endemic Velapertina, which occupied a similar niche to Orbulina in the surface waters. Using X-ray computed tomography scanning, we show that the evolution of the encompassing final chamber involved the same sequence of steps in both lineages, combining a progressively spherical shell shape with changes in the position, number, and sizes of apertures. The similarity in the sequence of character acquisitions suggests structural determinism in the way foraminiferal shells are constructed and the presence of natural selection favoring a spherical morphology. Collectively, the emergence of spherical chambers in the two lineages at a similar time suggests that the evolution of this spectacular complex character occurred in response to a singular environmental driver.

Czech name

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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

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OECD FORD branch

10506 - Paleontology

Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2023

Confidentiality

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

Name of the periodical

Paleobiology

ISSN

0094-8373

e-ISSN

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Volume of the periodical

49

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

17

Pages from-to

454-470

UT code for WoS article

000935767400001

EID of the result in the Scopus database

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