An Extreme Case of Plant-Insect Codiversification: Figs and Fig-Pollinating Wasps


Autoria(s): Cruaud, Astrid; Ronsted, Nina; Chantarasuwan, Bhanumas; Chou, Lien Siang; Clement, Wendy L.; Couloux, Arnaud; Cousins, Benjamin; Genson, Gwenaelle; Harrison, Rhett D.; Hanson, Paul E.; Hossaert-Mckey, Martine; Jabbour-Zahab, Roula; Jousselin, Emmanuelle; Kerdelhue, Carole; Kjellberg, Finn; Lopez-Vaamonde, Carlos; Peebles, John; Peng, Yan-Qiong; Pereira, Rodrigo Augusto Santinelo; Schramm, Tselil; Ubaidillah, Rosichon; van Noort, Simon; Weiblen, George D.; Yang, Da-Rong; Yodpinyanee, Anak; Libeskind-Hadas, Ran; Cook, James M.; Rasplus, Jean-Yves; Savolainen, Vincent
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

05/11/2013

05/11/2013

2012

Resumo

It is thought that speciation in phytophagous insects is often due to colonization of novel host plants, because radiations of plant and insect lineages are typically asynchronous. Recent phylogenetic comparisons have supported this model of diversification for both insect herbivores and specialized pollinators. An exceptional case where contemporaneous plant-insect diversification might be expected is the obligate mutualism between fig trees (Ficus species, Moraceae) and their pollinating wasps (Agaonidae, Hymenoptera). The ubiquity and ecological significance of this mutualism in tropical and subtropical ecosystems has long intrigued biologists, but the systematic challenge posed by >750 interacting species pairs has hindered progress toward understanding its evolutionary history. In particular, taxon sampling and analytical tools have been insufficient for large-scale cophylogenetic analyses. Here, we sampled nearly 200 interacting pairs of fig and wasp species from across the globe. Two supermatrices were assembled: on an average, wasps had sequences from 77% of 6 genes (5.6 kb), figs had sequences from 60% of 5 genes (5.5 kb), and overall 850 new DNA sequences were generated for this study. We also developed a new analytical tool, Jane 2, for event-based phylogenetic reconciliation analysis of very large data sets. Separate Bayesian phylogenetic analyses for figs and fig wasps under relaxed molecular clock assumptions indicate Cretaceous diversification of crown groups and contemporaneous divergence for nearly half of all fig and pollinator lineages. Event-based cophylogenetic analyses further support the codiversification hypothesis. Biogeographic analyses indicate that the present-day distribution of fig and pollinator lineages is consistent with a Eurasian origin and subsequent dispersal, rather than with Gondwanan vicariance. Overall, our findings indicate that the fig-pollinator mutualism represents an extreme case among plant-insect interactions of coordinated dispersal and long-term codiversification.

ANR/National Science Council, Taiwan, R. O. C.

ANR/National Science Council, Taiwan, R. O. C. [98WFA0100291]

Carlsberg Foundation

Carlsberg Foundation

Marie Curie grant "CoEvol"

Marie Curie grant CoEvol

Leverhulme Trust

Leverhulme Trust

NERC

NERC

Royal Society

Royal Society

European Research Council

European Research Council

NSC [99-2923-B-002-001-MY3]

NSC

FAPESP

Fapesp [04/10229-4]

NSF [0753306]

NSF

Howard Hughes Medical Institute

Howard Hughes Medical Institute [52006301]

The Natural History Museum of Denmark

The Natural History Museum of Denmark

Identificador

SYSTEMATIC BIOLOGY, OXFORD, v. 61, n. 6, supl. 1, Part 2, pp. 1029-1047, DEC, 2012

1063-5157

http://www.producao.usp.br/handle/BDPI/41268

10.1093/sysbio/sys068

http://dx.doi.org/10.1093/sysbio/sys068

Idioma(s)

eng

Publicador

OXFORD UNIV PRESS

OXFORD

Relação

SYSTEMATIC BIOLOGY

Direitos

closedAccess

Copyright OXFORD UNIV PRESS

Palavras-Chave #BIOGEOGRAPHY #COEVOLUTION #COSPECIATION #HOST SWITCHING #LONG-BRANCH ATTRACTION #PHYLOGENY #COPHYLOGENY RECONSTRUCTION PROBLEM #LONG-BRANCH ATTRACTION #PHYLOGENETIC TREE SELECTION #MULBERRY FAMILY MORACEAE #MAXIMUM-LIKELIHOOD #MOLECULAR PHYLOGENIES #HOST-SPECIFICITY #INDIAN-OCEAN #HISTORICAL BIOGEOGRAPHY #BAYESIAN PHYLOGENETICS #EVOLUTIONARY BIOLOGY
Tipo

article

original article

publishedVersion