%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Kergoat, G. J.
%A Condamine, F. L.
%A Toussaint, E. F. A.
%A Capdevielle Dulac, Claire
%A Clamens, A. L.
%A Barbut, J.
%A Goldstein, P. Z.
%A Le Rü, Bruno
%T Opposite macroevolutionary responses to environmental changes in grasses and insects during the Neogene grassland expansion
%D 2018
%L fdi:010074500
%G ENG
%J Nature Communications
%@ 2041-1723
%K AFRIQUE ; ZONE TROPICALE
%M ISI:000451741900003
%P art. 5089 [9 ]
%R 10.1038/s41467-018-07537-8
%U https://www.documentation.ird.fr/hor/fdi:010074500
%> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers18-12/010074500.pdf
%V 9
%W Horizon (IRD)
%X The rise of Neogene C-4 grasslands is one of the most drastic changes recently experienced by the biosphere. A central - and widely debated - hypothesis posits that Neogene grasslands acted as a major adaptive zone for herbivore lineages. We test this hypothesis with a novel model system, the Sesamiina stemborer moths and their associated host-grasses. Using a comparative phylogenetic framework integrating paleoenvironmental proxies we recover a negative correlation between the evolutionary trajectories of insects and plants. Our results show that paleoenvironmental changes generated opposing macroevolutionary dynamics in this insect-plant system and call into question the role of grasslands as a universal adaptive cradle. This study illustrates the importance of implementing environmental proxies in diversification analyses to disentangle the relative impacts of biotic and abiotic drivers of macroevolutionary dynamics.
%$ 076 ; 082 ; 021 ; 020