Andrea Sanchez Meseguer

Andrea Sanchez Meseguer

AgreenSkills session, year: 2nd session, 2014

Receiving laboratory: CBGP Centre for Biology and Management of Populations Montpellier, France

Country of origin : Spain




Mobility project

Role of host-plant association, microbiome evolution and climate change on the diversification of conifer feeding-aphids: a macroevolutionary approach

Large-scale diversity patterns in herbivorous insects are generally considered to be the result of selective responses to their host-plants diversification. However, little attention has been paid to the effect of other factors in species diversification. Endosymbiotic bacteria have been suggested to play an important role in insect adaptation, increasing the fitness of their hosts in specific environments. In this project we aim to tell apart the contribution of biotic and abiotic factors on the extraordinary diversification of phytophagous insects. To this aim, we chose a three-way interaction as a model system: a Cinara aphid, its host plants and their community of bacterial endosymbionts.

Biography & research interests

I’m an evolutionary biologist working on macroevolution. My main interest is to investigate patterns of biotic assemblage, with special emphasis on the processes shaping diversity patterns (speciation, extinction and dispersal). I am also interested in the fossil record and in its integration with current evidence to provide more realistic scenarios of the past. During my master thesis in Paleontology, I studied body adaptations of Neanderthal lineages, aiming to understand the effect of climate change over the body patterns of the organisms. During this period, I gained understanding on the principles and practices of working with fossils, but also on the paleogeography and paleoclimatology of the Cenozoic. I finished my PhD in 2013 at the Real Jardín Botánico-CSIC (Madrid), where I combined probabilistic approaches, fossil evidence and a variety of molecular markers to reconstruct the evolutionary history of plants at large spatio‐temporal scales. During this period, I gained expertise in molecular biology, biogeography, phylogenetic comparative analyses and ecological niche modelling techniques

Selected publications
  • Meseguer AS, Coeur d’acier A, Genson G, Jousselin E. Evolutionary history of a conifer-feeding aphid genus reveals the role of abiotic factors in shaping large-scale diversity and geographic patterns. Journal of Biogeography (accepted).
  • Pokorny L, Riina R, Mairal M, Culshaw V, Meseguer AS, Carbajal R, Serrano M, Ortiz S, Heuertz M, Sanmartin I. Climate-driven extinction and the origin of the African Rand Flora. Frontiers in genetics (accepted).
  • Meseguer AS, Lobo JM, Ree R, Beerling DJ, Sanmartín I. (2015) Integrating fossils, phylogenies, and niche models into Biogeography to reveal the evolutionary history of a lineage: the case of Hypericum (Hypericaceae). Systematic Biology 64 (2): 215-232
  • Meseguer AS, Sanmartín I, Marcussen T, Pfeil B (2014). Utility of low-copy nuclear markers in phylogenetic reconstruction of Hypericum L. (Hypericaceae). Plant Systematics and Evolution 300(6):1503-1514.
  • Meseguer AS, Aldasoro JJ, Sanmartín I (2013). Bayesian inference of phylogeny, morphology and range evolution reveals a complex evolutionary history in St John’s wort (Hypericum). Molecular Phylogenetics and Evolution 67:379–403.
  • Hoorn C, Wesselingh FP, Steege H Ter, Bermudez MA, Mora A, Sevink J, Sanmartín I, Sanchez-Meseguer A, Anderson CL, Figueiredo JP, Jaramillo C, Riff D, Negri FR, Hooghiemstra H, Lundberg J, Stadler T, Särkinen T, Antonelli A (2010) Amazonia through time: Amazonia Through Time: Andean Uplift, Climate: Change, Landscape Evolution, and Biodiversity. Science 330, 927.