African bushpigs exhibit porous species boundaries and appeared in Madagascar concurrently with human arrival

Balboa Renzo F., Bertola Laura D., Brüniche-Olsena Anna, Rasmussen Malthe Sebro, Liu Xiaodong, Besnard Guillaume, Salmona Jordi, Santander Cindy G., He Shixu, Zinner Dietmar, Pedrono Miguel, Muwanika Vincent, Masembe Charles, Schubert Mikkel, Kuja Josiah, Quinn Liam, Garcia-Erill Genís, Stæger Frederik Filip, Rakotoarivony Rianja Tsanta Ny Aina, Henrique Margarida, Lin Long, Wang Xi, Heaton Michael P., Smith Timothy P. L., Hanghøj Kristian, Sinding Mikkel-Holger S., Atickem Anagaw, Chikhi Lounès, Roos Christian, Gaubert Philippe, Siegismund Hans R., Moltke Ida, Albrechtsen Anders, Heller Rasmus. 2024. African bushpigs exhibit porous species boundaries and appeared in Madagascar concurrently with human arrival. Nature Communications, 15:172, 15 p.

Url - autres données associées : https://github.com/popgenDK/seqAfrica_bushpigs / Url - jeu de données - Entrepôt autre : https://www.ncbi.nlm.nih.gov/bioproject/PRJNA1027560/ / Url - jeu de données - Entrepôt autre : https://ngdc.cncb.ac.cn/biosample/browse/SAMC146518 / Url - jeu de données - Entrepôt autre : https://www.ncbi.nlm.nih.gov/biosample/SAMN28197093 / Url - jeu de données - Entrepôt autre : https://www.ncbi.nlm.nih.gov/nuccore/NC_008830

Résumé : Several African mammals exhibit a phylogeographic pattern where closely related taxa are split between West/Central and East/Southern Africa, but their evolutionary relationships and histories remain controversial. Bushpigs (Potamochoerus larvatus) and red river hogs (P. porcus) are recognised as separate species due to morphological distinctions, a perceived lack of interbreeding at contact, and putatively old divergence times, but historically, they were considered conspecific. Moreover, the presence of Malagasy bushpigs as the sole large terrestrial mammal shared with the African mainland raises intriguing questions about its origin and arrival in Madagascar. Analyses of 67 whole genomes revealed a genetic continuum between the two species, with putative signatures of historical gene flow, variable FST values, and a recent divergence time (<500,000 years). Thus, our study challenges key arguments for splitting Potamochoerus into two species and suggests their speciation might be incomplete. Our findings also indicate that Malagasy bushpigs diverged from southern African populations and underwent a limited bottleneck 1000-5000 years ago, concurrent with human arrival in Madagascar. These results shed light on the evolutionary history of an iconic and widespread African mammal and provide insight into the longstanding biogeographic puzzle surrounding the bushpig's presence in Madagascar.

Mots-clés Agrovoc : variation génétique, génétique des populations, dynamique des populations, biogéographie, porcin, biodiversité, flux de gènes

Mots-clés géographiques Agrovoc : Madagascar, Afrique, Ouganda

Mots-clés libres : Adaptive radiation, Evolutionary genetics, Invasive species, Population genetics

Agences de financement hors UE : Agence Nationale de la Recherche

Projets sur financement : (FRA) CEnter of the study of Biodiversity in Amazonia, (FRA) Towards a Unified theory of biotic Interactions: the roLe of environmental

Auteurs et affiliations

• Balboa Renzo F., UCPH (DNK)
• Bertola Laura D., UCPH (DNK)
• Brüniche-Olsena Anna, UCPH (DNK)
• Rasmussen Malthe Sebro, UCPH (DNK)
• Liu Xiaodong, UCPH (DNK)
• Besnard Guillaume, CNRS (FRA)
• Salmona Jordi, IRD (FRA)
• Santander Cindy G., UCPH (DNK)
• He Shixu, UCPH (DNK)
• Zinner Dietmar, Georg-August University of Göttingen (DEU)
• Pedrono Miguel, CIRAD-BIOS-UMR ASTRE (FRA)
• Muwanika Vincent, Makerere University (UGA)
• Masembe Charles, Makerere University (UGA)
• Schubert Mikkel, UCPH (DNK)
• Kuja Josiah, UCPH (DNK)
• Quinn Liam, UCPH (DNK)
• Garcia-Erill Genís, UCPH (DNK)
• Stæger Frederik Filip, UCPH (DNK)
• Rakotoarivony Rianja Tsanta Ny Aina, CIRAD-BIOS-UMR ASTRE (FRA)
• Henrique Margarida, IGC (PRT)
• Lin Long, UCPH (DNK)
• Wang Xi, UCPH (DNK)
• Heaton Michael P., USDA (USA)
• Smith Timothy P. L., USDA (USA)
• Hanghøj Kristian, UCPH (DNK)
• Sinding Mikkel-Holger S., UCPH (DNK)
• Atickem Anagaw, Addis Ababa University (ETH)
• Chikhi Lounès, CNRS (FRA)
• Roos Christian, Leibniz Institute for Primate Research (DEU)
• Gaubert Philippe, IRD (FRA)
• Siegismund Hans R., UCPH (DNK)
• Moltke Ida, UCPH (DNK) - auteur correspondant
• Albrechtsen Anders, UCPH (DNK) - auteur correspondant
• Heller Rasmus, UCPH (DNK) - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/613162/)

Métriques

[ Page générée et mise en cache le 2025-09-05 ]