Twin Cradles of Diversity: Parallel In-Situ Radiations in India and Africa Drive the Evolution of Hemidactylus Geckos

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F25%3A10136853" target="_blank" >RIV/00023272:_____/25:10136853 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/25:10511727

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/10.1111/jbi.15165" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1111/jbi.15165</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jbi.15165" target="_blank" >10.1111/jbi.15165</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Twin Cradles of Diversity: Parallel In-Situ Radiations in India and Africa Drive the Evolution of Hemidactylus Geckos

Popis výsledku v původním jazyce

The dynamic geological history of the Earth, alongside dispersal and vicariance processes, has profoundly shaped global biodiversity patterns. The species-rich gecko genus Hemidactylus, with its nearly worldwide distribution, offers a compelling system to investigate these evolutionary processes. In this study, we aimed to resolve the long-debated origin of Hemidactylus and disentangle the directionality of its dispersal events, while identifying major centres of diversification across its range. Location: Worldwide. Taxon: Hemidactylus geckos. Methods: We reconstructed a time-calibrated phylogeny of Hemidactylus using six nuclear and three mitochondrial genes, covering ~80% of described species, by employing both concatenation and coalescent-based methods. We then used a time-stratified BioGeoBEARS framework, informed by plate tectonics, to estimate ancestral ranges. To further account for phylogenetic and geographic uncertainty, we implemented biogeographic stochastic mapping to quantify the frequency and direction of dispersal, in situ speciation, and vicariance events. Results: Our results supported an origin of Hemidactylus on the Indian plate around 58 million years ago, followed by a major dispersal into Africa. These two regions emerged as independent but parallel centres of in situ speciation. Subsequent dispersals led to a secondary diversification in the Middle East, and more recent colonisation events extended the genus&apos;s range into Southeast Asia and the Neotropics. Main Conclusion: We propose an Indian origin for Hemidactylus and identify multiple hubs of diversification, notably in India and Africa. The genus&apos;s evolutionary success appears to have been shaped by directional, long-distance dispersal events combined with repeated in situ speciation. Together, these processes have enabled Hemidactylus to become one of the most widespread and speciose gecko genera.

Název v anglickém jazyce

Twin Cradles of Diversity: Parallel In-Situ Radiations in India and Africa Drive the Evolution of Hemidactylus Geckos

Popis výsledku anglicky

The dynamic geological history of the Earth, alongside dispersal and vicariance processes, has profoundly shaped global biodiversity patterns. The species-rich gecko genus Hemidactylus, with its nearly worldwide distribution, offers a compelling system to investigate these evolutionary processes. In this study, we aimed to resolve the long-debated origin of Hemidactylus and disentangle the directionality of its dispersal events, while identifying major centres of diversification across its range. Location: Worldwide. Taxon: Hemidactylus geckos. Methods: We reconstructed a time-calibrated phylogeny of Hemidactylus using six nuclear and three mitochondrial genes, covering ~80% of described species, by employing both concatenation and coalescent-based methods. We then used a time-stratified BioGeoBEARS framework, informed by plate tectonics, to estimate ancestral ranges. To further account for phylogenetic and geographic uncertainty, we implemented biogeographic stochastic mapping to quantify the frequency and direction of dispersal, in situ speciation, and vicariance events. Results: Our results supported an origin of Hemidactylus on the Indian plate around 58 million years ago, followed by a major dispersal into Africa. These two regions emerged as independent but parallel centres of in situ speciation. Subsequent dispersals led to a secondary diversification in the Middle East, and more recent colonisation events extended the genus&apos;s range into Southeast Asia and the Neotropics. Main Conclusion: We propose an Indian origin for Hemidactylus and identify multiple hubs of diversification, notably in India and Africa. The genus&apos;s evolutionary success appears to have been shaped by directional, long-distance dispersal events combined with repeated in situ speciation. Together, these processes have enabled Hemidactylus to become one of the most widespread and speciose gecko genera.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10613 - Zoology

Projekt

<a href="/cs/project/GA22-12757S" target="_blank" >GA22-12757S: Genomické koridory v extrémních podmínkách: historická a současná populační dynamika pouštních plazů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Journal of Biogeography

ISSN

0305-0270

e-ISSN

—

Svazek periodika

52

Číslo periodika v rámci svazku

August

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

1-15

Kód UT WoS článku

001494978300001

EID výsledku v databázi Scopus

—