Data from: ‘Becoming a species by becoming a pest’ or how two maize pests of the genus Ostrinia possibly evolved through parallel ecological speciation eventsDenis Bourguet, Sergine Ponsard, Rejane Streiff, Serge Meusnier, Philippe Audiot, Jing Li & Zhen-Ying Wang
New agricultural pest species attacking introduced crops may evolve from pre-existing local herbivores by ecological speciation, thereby becoming a species by becoming a pest. We compare the evolutionary pathways by which two maize pests (the Asian and the European corn borers, ACB and ECB) in the genus Ostrinia (Lepidoptera, Crambidae) probably diverged from an ancestral species close to the current Adzuki bean borer (ABB). We typed larval Ostrinia populations collected on maize and dicotyledons across...
Data from: The demographic history of populations experiencing asymmetric gene flow: combining simulated and empirical data.Ivan Paz Viñas, Erwan Quéméré, Lounès Chikhi, Géraldine Loot & Simon Blanchet
Population structure can significantly affect genetic-based demographic inferences, generating spurious bottleneck-like signals. Previous studies have typically assumed island or stepping-stone models, which are characterized by symmetric gene flow. However, many organisms are characterized by asymmetric gene flow. Here, we combined simulated and empirical data to test whether asymmetric gene flow affects the inference of past demographic changes. Through the analysis of simulated genetic data with three methods (i.e. bottleneck, M-ratio and msvar), we demonstrated that...
The Réunion grey white-eye, Zosterops borbonicus, a passerine bird endemic to Réunion Island in the Mascarene archipelago, represents an extreme case of microgeographical plumage colour variation in birds, with four distinct colour forms occupying different parts of this small island (2512 km2). To understand whether such population differentiation may reflect low levels of dispersal and gene flow at a very small spatial scale, we examined population structure and gene flow by analysing variation at 11...
Data from: Unveiling the diet of elusive rainforest herbivores in next generation sequencing era? The tapir as a case studyFabrice Hibert, Pierre Taberlet, Jérôme Chave, Caroline Scotti-Saintagne, Daniel Sabatier & Cécile Richard-Hansen
Characterizing the trophic relationships between large herbivores and the outstanding plant diversity in rainforest is a major challenge because of their elusiveness. This is crucial to understand the role of these herbivores in the functioning of the rainforest ecosystems. We tested a non-invasive approach based on the high-throughput sequencing of environmental samples using small plant plastid sequences (the trnL P6 loop) and ribosomal ITS1 primers, referred to as DNA metabarcoding, to investigate the diet of...
Data from: Pathways of cryptic invasion in a fish parasite traced using coalescent analysis and epidemiological surveyWafa Bouzid, Jan Štefka, Lilia Bahri-Sfar, Peter Beerli, Géraldine Loot, Sovan Lek, Noura Haddaoui, Václav Hypša, Tomáš Scholz, Tahani Dkhil-Abbes, Rafik Meddour & Oum Kalthoum Ben Hassine
Introduced species have the potential to outperform natives via the introduction of new parasites to which the native ecosystem is vulnerable. Cryptic diversity within an invasive species can obscure invasion patterns and confound proper management measures. The aim of this study is to use coalescent theory based methodology to trace recent routes of invasion in populations of Ligula intestinalis, a globally distributed fish parasite possessing both native and recently introduced populations in North Africa. Molecular...
Paul Sabatier University5
University of Toulouse2
Centre national de la recherche scientifique1
Centre d'Ecologie Fonctionnelle et Evolutive1
Institute of Plant Protection1
French National Institute for Agricultural Research1
Botany and Modelling of Plant Architecture and Vegetation1
Office National de la Chasse et de la Faune Sauvage1
Joseph Fourier University1
Spanish National Research Council1