TY - JOUR
T1 - The butterfly plant arms-race escalated by gene and genome duplications
AU - Edger, P.P.
AU - Heidel-Fischer, H.M.
AU - Bekaert, M.
AU - Rota, J.
AU - Glöckner, G.
AU - Platts, A.E.
AU - Heckel, D.G.
AU - Der, J.P.
AU - Wafula, E.K.
AU - Tang, M.
AU - Hofberger, J.A.
AU - Smithson, Ann
AU - Hall, J.C.
AU - Blanchette, M.
AU - Bureau, T.E.
AU - Wright, S.I.
AU - Depamphilis, C.W.
AU - Schranz, M.E.
AU - Barker, M.S.
AU - Conant, G.C.
AU - Wahlberg, N.
AU - Vogel, H.
AU - Pires, J.C.
AU - Wheat, C.W.
AU - Berenbaum, M.R.
PY - 2015
Y1 - 2015
N2 - Coevolutionary interactions are thought to have spurred the evolution of key innovations and driven the diversification of much of life on Earth. However, the genetic and evolutionary basis of the innovations that facilitate such interactions remains poorly understood. We examined the coevolutionary interactions between plants (Brassicales) and butterflies (Pieridae), and uncovered evidence for an escalating evolutionary arms-race. Although gradual changes in trait complexity appear to have been facilitated by allelic turnover, key innovations are associated with gene and genome duplications. Furthermore, we show that the origins of both chemical defenses and of molecular counter adaptations were associated with shifts in diversification rates during the arms-race. These findings provide an important connection between the origins of biodiversity, coevolution, and the role of gene and genome duplications as a substrate for novel traits.
AB - Coevolutionary interactions are thought to have spurred the evolution of key innovations and driven the diversification of much of life on Earth. However, the genetic and evolutionary basis of the innovations that facilitate such interactions remains poorly understood. We examined the coevolutionary interactions between plants (Brassicales) and butterflies (Pieridae), and uncovered evidence for an escalating evolutionary arms-race. Although gradual changes in trait complexity appear to have been facilitated by allelic turnover, key innovations are associated with gene and genome duplications. Furthermore, we show that the origins of both chemical defenses and of molecular counter adaptations were associated with shifts in diversification rates during the arms-race. These findings provide an important connection between the origins of biodiversity, coevolution, and the role of gene and genome duplications as a substrate for novel traits.
U2 - 10.1073/pnas.1503926112
DO - 10.1073/pnas.1503926112
M3 - Article
C2 - 26100883
VL - 112
SP - 8362
EP - 8366
JO - National Academy of Sciences, Proceedings
JF - National Academy of Sciences, Proceedings
SN - 0027-8424
IS - 27
ER -