Data from: Pollinator sharing and gene flow among closely related sympatric dioecious fig taxa
Data files
Mar 16, 2016 version files 2.24 MB
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Appendix S1. Byesian tree of all Ceratosolen species with COI gene recored in GenBank.nexus
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Appendix S2. Bayesian tree of sympatric figs species from Subgenus Sycomorus.nexus
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Appendix S3. Byesian tree of 87 de nove sequenced Ceratosolen fig wasps.nexus
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Appendix S4. Ficus SSR data 11loci_278ind.txt
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Appendix S5. List of fig wasp and fig samples used in phylogeny establishment.xlsx
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Supplementary Table S1_S8 and Figure S1_S3.160216.docx
Abstract
Hybridization and insect pollination are widely believed to increase rates of plant diversification. The extreme diversity of figs (Ficus) and their obligate pollinators, fig wasps (Agaonidae), provides an opportunity to examine the possible role of pollinator-mediated hybridization in plant diversification. Increasing evidence suggests that pollinator sharing and hybridization occurs among fig taxa, despite relatively strict co-evolution with the pollinating wasp. Using five sympatric dioecious fig taxa and their pollinators, we examine the degree of pollinator sharing and inter-taxa gene flow. We experimentally test pollinator preference for floral volatiles, the main host recognition signal, from different figs. All five fig taxa shared pollinators with other taxa and gene flow occurred between fig taxa within and between sections. Floral volatiles of each taxon attracted more than one pollinator species. Floral volatiles were more similar between closely related figs, which experienced higher levels of pollinator sharing and inter-taxa gene flow. This study demonstrates that pollinator sharing and inter-taxa gene flow occurs among closely related sympatric dioecious fig taxa and that pollinators choose the floral volatiles of multiple fig taxa. The implications of pollinator sharing and inter-taxa gene flow on diversification, occurring even in this highly specialized obligate pollination system, requires further study.