Sky, sea, and forest islands: Diversification in the African leaf-folding frog Afrixalus paradorsalis (Anura: Hyperoliidae) of the Lower Guineo-Congolian rain forest

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F18%3A00492024" target="_blank" >RIV/68081766:_____/18:00492024 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00023272:_____/18:10133973

Výsledek na webu

<a href="http://dx.doi.org/10.1111/jbi.13365" target="_blank" >http://dx.doi.org/10.1111/jbi.13365</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jbi.13365" target="_blank" >10.1111/jbi.13365</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Sky, sea, and forest islands: Diversification in the African leaf-folding frog Afrixalus paradorsalis (Anura: Hyperoliidae) of the Lower Guineo-Congolian rain forest

Popis výsledku v původním jazyce

AimnTo investigate how putative barriers, forest refugia, and ecological gradients across the lower Guineo‐Congolian rain forest shape genetic and phenotypic divergence in the leaf‐folding frog Afrixalus paradorsalis, and examine the role of adjacent land bridge and sky‐islands in diversification.nLocationnThe Lower Guineo‐Congolian Forest, the Cameroonian Volcanic Line (CVL), and Bioko Island, Central Africa.nTaxonnAfrixalus paradorsalis (Family: Hyperoliidae), an African leaf‐folding frog.nMethodsnWe used molecular and phenotypic data to investigate diversity and divergence among the A. paradorsalis species complex distributed across lowland rain forests, a land bridge island, and mountains in Central Africa. We examined the coincidence of population boundaries, landscape features, divergence times, and spatial patterns of connectivity and diversity, and subsequently performed demographic modelling using genome‐wide SNP variation to distinguish among divergence mechanisms in mainland (riverine barriers, forest refugia, ecological gradients) and land bridge island populations (vicariance, overwater dispersal).nResultsnWe detected four genetically distinct allopatric populations corresponding to Bioko Island, the CVL, and two lowland rain forest populations split by the Sanaga River. Although lowland populations are phenotypically indistinguishable, pronounced body size evolution occurs at high elevation, and the timing of the formation of the high elevation population coincides with mountain uplift in the CVL. Spatial analyses and demographic modelling revealed population divergence across mainland Lower Guinea is best explained by forest refugia rather than riverine barriers or ecological gradients, and that the Bioko Island population divergence is best explained by vicariance (marine incursion) rather than overseas dispersal.nMain conclusionsnWe provide growing support for the important role of forest refugia in driving intraspecific divergences in the Guineo‐Congolian rain forest. In A. paradorsalis, sky‐islands in the CVL have resulted in greater genetic and phenotypic divergences than marine incursions of the land bridge Bioko Island, highlighting important differences in patterns of island‐driven diversification in Lower Guinea.

Název v anglickém jazyce

Sky, sea, and forest islands: Diversification in the African leaf-folding frog Afrixalus paradorsalis (Anura: Hyperoliidae) of the Lower Guineo-Congolian rain forest

Popis výsledku anglicky

AimnTo investigate how putative barriers, forest refugia, and ecological gradients across the lower Guineo‐Congolian rain forest shape genetic and phenotypic divergence in the leaf‐folding frog Afrixalus paradorsalis, and examine the role of adjacent land bridge and sky‐islands in diversification.nLocationnThe Lower Guineo‐Congolian Forest, the Cameroonian Volcanic Line (CVL), and Bioko Island, Central Africa.nTaxonnAfrixalus paradorsalis (Family: Hyperoliidae), an African leaf‐folding frog.nMethodsnWe used molecular and phenotypic data to investigate diversity and divergence among the A. paradorsalis species complex distributed across lowland rain forests, a land bridge island, and mountains in Central Africa. We examined the coincidence of population boundaries, landscape features, divergence times, and spatial patterns of connectivity and diversity, and subsequently performed demographic modelling using genome‐wide SNP variation to distinguish among divergence mechanisms in mainland (riverine barriers, forest refugia, ecological gradients) and land bridge island populations (vicariance, overwater dispersal).nResultsnWe detected four genetically distinct allopatric populations corresponding to Bioko Island, the CVL, and two lowland rain forest populations split by the Sanaga River. Although lowland populations are phenotypically indistinguishable, pronounced body size evolution occurs at high elevation, and the timing of the formation of the high elevation population coincides with mountain uplift in the CVL. Spatial analyses and demographic modelling revealed population divergence across mainland Lower Guinea is best explained by forest refugia rather than riverine barriers or ecological gradients, and that the Bioko Island population divergence is best explained by vicariance (marine incursion) rather than overseas dispersal.nMain conclusionsnWe provide growing support for the important role of forest refugia in driving intraspecific divergences in the Guineo‐Congolian rain forest. In A. paradorsalis, sky‐islands in the CVL have resulted in greater genetic and phenotypic divergences than marine incursions of the land bridge Bioko Island, highlighting important differences in patterns of island‐driven diversification in Lower Guinea.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

<a href="/cs/project/GJ15-13415Y" target="_blank" >GJ15-13415Y: Druhová diverzifikace obojživelníků v prostorovém a ekologickém kontextu horských a nížinných deštných lesů: transekt genomem a kontinentem</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

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

45

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

1781-1794

Kód UT WoS článku

000440297300007

EID výsledku v databázi Scopus

2-s2.0-85050792768