Genomic data reveals cryptic diversity in the Soda Lake cichlid Oreochromis amphimelas
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F25%3A00639205" target="_blank" >RIV/68081766:_____/25:00639205 - isvavai.cz</a>
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.72054" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.72054</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/ece3.72054" target="_blank" >10.1002/ece3.72054</a>
Alternative languages
Result language
angličtina
Original language name
Genomic data reveals cryptic diversity in the Soda Lake cichlid Oreochromis amphimelas
Original language description
The cichlid fishes of East Africa are renowned for their rapid and species-rich adaptive radiations. However, some specialist cichlid lineages in the region have not undergone extensive diversification, it is plausible that these lineages contain cryptic allopatric diversity. The tilapiine cichlid Oreochromis amphimelas (Hilgendorf, 1905) is a distinctive species specialised for high salinity, high alkalinity and high temperature soda lakes in the East African Rift Valley. Here, we investigated variation among O. amphimelas populations using a combination of reduced-representation genome sequences, mitochondrial DNA sequences and morphological data. Genetic data revealed two highly divergent genomic lineages, with no evidence of ongoing gene flow. Specifically, the Lake Manyara population was strongly differentiated from the four other populations studied, which show relatively low levels of genetic differentiation among them. Genetic differentiation between Lake Manyara and the other populations is seen across the genome, as characterised by elevated windowed F ST. Despite the clear genomic divergence between the Lake Manyara and other soda lake populations, there were no apparent morphological differences between the two lineages, indicating they may be considered two cryptic species. It is possible that O. amphimelas lineages have diverged vicariantly following regional geomorphological change. Identification of two potential geographically separated cryptic species in the lineage has conservation implications, given that O. amphimelas is currently categorised as Endangered on the IUCN Red List of Threatened Species, due to threats from fisheries and environmental change.
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
10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology
Result continuities
Project
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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
Ecology and Evolution
ISSN
2045-7758
e-ISSN
2045-7758
Volume of the periodical
15
Issue of the periodical within the volume
9
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
e72054
UT code for WoS article
001569990500001
EID of the result in the Scopus database
2-s2.0-105015791740