Twin Cradles of Diversity: Parallel In-Situ Radiations in India and Africa Drive the Evolution of Hemidactylus Geckos
The result's identifiers
Result code in 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>
Alternative codes found
RIV/00216208:11310/25:10511727
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
Twin Cradles of Diversity: Parallel In-Situ Radiations in India and Africa Drive the Evolution of Hemidactylus Geckos
Original language description
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'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'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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10613 - Zoology
Result continuities
Project
<a href="/en/project/GA22-12757S" target="_blank" >GA22-12757S: Genomic highways in extreme environments: historical and present patterns of population connectivity of desert reptiles</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Biogeography
ISSN
0305-0270
e-ISSN
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Volume of the periodical
52
Issue of the periodical within the volume
August
Country of publishing house
US - UNITED STATES
Number of pages
15
Pages from-to
1-15
UT code for WoS article
001494978300001
EID of the result in the Scopus database
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