Author:
Muñoz-Valencia Vanessa,Vélez-Matínez Glever Alexander,Montoya-Lerma James,Díaz Fernando
Abstract
ABSTRACTNeotropical diversification by the Andean uplift is typically addressed on a large evolutionary scale (e.g. speciation), even though many species are still distributed in both sides of the mountains. The three parallel mountain ranges in the northern Andes (Colombia) impose a major geographical barrier to species’ migration from South to Central America. How important these barriers are for conspecific diversification of cross-Andean species such as the leaf-cutting ants remains largely unknown. To answer this question, we studied the mtCOI gene of Atta cephalotes, the most widely distributed leaf-cutting ant species. Our hierarchical analyzes evidenced substantial genetic structure among regions and populations, suggesting a more complex biogeographical history of Andean populations than previously thought. These mountains seem to isolate Central American and Western Colombian populations from the rest of A. cephalotes in South America. Population and migration modelling are consistent with the origin of this species in South America and a major role of the Eastern cordillera as a geographical barrier to historical gene flow, restricting dispersion from north to south. These findings provide insights into the role of the Andean uplift as barrier to gene flow and, eventually, implications for monitoring and designing management strategies for leaf-cutting ants.
Publisher
Cold Spring Harbor Laboratory
Reference77 articles.
1. Antonelli, A. , Quijada-Mascareñas, A. , Crawford, A. J. , Bates, J. M. , Velazco, P. M. , & Wüster, W. (2009). Molecular studies and phylogeography of Amazonian tetrapods and their relation to geological and climatic models. In C. Hoorn & F. Wesselingh (Eds.), Amazonia, landscape and species evolution: A look into the past (pp. 386–404). London, UK: Blackwell Publishing Ltd.
2. Median-joining networks for inferring intraspecific phylogenies
3. Population Genetic Inference With MIGRATE
4. THE ORIGIN OF SPECIFICITY BY MEANS OF NATURAL SELECTION: EVOLVED AND NONHOST RESISTANCE IN HOST-PATHOGEN INTERACTIONS
5. Dry habitats were crucibles of domestication in the evolution of agriculture in ants
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献