Genomic data reveals cryptic diversity in the Soda Lake cichlid Oreochromis amphimelas

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Genomic data reveals cryptic diversity in the Soda Lake cichlid Oreochromis amphimelas

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Genomic data reveals cryptic diversity in the Soda Lake cichlid Oreochromis amphimelas

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology

Projekt

—

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

Ecology and Evolution

ISSN

2045-7758

e-ISSN

2045-7758

Svazek periodika

15

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

e72054

Kód UT WoS článku

001569990500001

EID výsledku v databázi Scopus

2-s2.0-105015791740