An obligate pollination mutualism and reciprocal diversification in the tree genus
            <i>Glochidion</i>
            (Euphorbiaceae)

Katô, Makoto; Takimura, Atsushi; Kawakita, Atsushi

doi:10.1073/pnas.0837153100

Cited by 168 publications

(235 citation statements)

References 15 publications

Supporting

Mentioning

227

Contrasting

Unclassified

Order By: Relevance

“…It is likely, though, that more plants are pollinated by floral parasites than is currently known. For example, only within the past decade has pollination by insects during oviposition been discovered in the Phyllanthaceae in the tropical Pacific, involving possibly hundreds of plant species, and discovery of similar pollination mutualisms within this and other plant families continues (6,11,30,31).…”

Section: Discussionmentioning

confidence: 99%

Diversification through multitrait evolution in a coevolving interaction

Thompson

Schwind

Guimarães

et al. 2013

Proc. Natl. Acad. Sci. U.S.A.

View full text Add to dashboard Cite

Mutualisms between species are interactions in which reciprocal exploitation results in outcomes that are mutually beneficial. This reciprocal exploitation is evident in the more than a thousand plant species that are pollinated exclusively by insects specialized to lay their eggs in the flowers they pollinate. By pollinating each flower in which she lays eggs, an insect guarantees that her larval offspring have developing seeds on which to feed, whereas the plant gains a specialized pollinator at the cost of some seeds. These mutualisms are often reciprocally obligate, potentially driving not only ongoing coadaptation but also diversification. The lack of known intermediate stages in most of these mutualisms, however, makes it difficult to understand whether these interactions could have begun to diversify even before they became reciprocally obligate. Experimental studies of the incompletely obligate interactions between woodland star (Lithophragma; Saxifragaceae) plants and their pollinating floral parasites in the moth genus Greya (Prodoxidae) show that, as these lineages have diversified, the moths and plants have evolved in ways that maintain effective oviposition and pollination. Experimental assessment of pollination in divergent species and quantitative evaluation of time-lapse photographic sequences of pollination viewed on surgically manipulated flowers show that various combinations of traits are possible for maintaining the mutualism. The results suggest that at least some forms of mutualism can persist and even diversify when the interaction is not reciprocally obligate.coevolution | geographic divergence | correlated traits | trait matching

show abstract

Section: Discussionmentioning

confidence: 99%

Diversification through multitrait evolution in a coevolving interaction

Thompson

Schwind

Guimarães

et al. 2013

Proc. Natl. Acad. Sci. U.S.A.

View full text Add to dashboard Cite

show abstract

“…In addition, an obligate pollination mutualism between Glochidion trees (Phyllantaceae) and Epicephala moths (Gracillariidae) was recently described (Kato et al 2003). Several different methods for investigating the level of cocladogenesis between phylogenies indicated that there is a greater degree of correlation between the Glochidion and Epicephala phylogenetic trees than expected in a random association .…”

Section: Co-divergence In the Fig-wasp Symbiosis N Rønsted And Othermentioning

confidence: 99%

60 million years of co-divergence in the fig–wasp symbiosis

et al. 2005

View full text Add to dashboard Cite

Figs (Ficus; ca 750 species) and fig wasps (Agaoninae) are obligate mutualists: all figs are pollinated by agaonines that feed exclusively on figs. This extraordinary symbiosis is the most extreme example of specialization in a plant-pollinator interaction and has fuelled much speculation about co-divergence. The hypothesis that pollinator specialization led to the parallel diversification of fig and pollinator lineages (co-divergence) has so far not been tested due to the lack of robust and comprehensive phylogenetic hypotheses for both partners. We produced and combined the most comprehensive molecular phylogenetic trees to date with fossil data to generate independent age estimates for fig and pollinator lineages, using both non-parametric rate smoothing and penalized likelihood dating methods. Molecular dating of ten pairs of interacting lineages provides an unparalleled example of plant-insect co-divergence over a geological time frame spanning at least 60 million years.

show abstract

“…The tribe Phyllantheae (Phyllanthaceae) contains around 1200 species of monoecious or dioecious herbs/shrubs/ trees and nearly half of the species are pollinated only by female moths of the genus Epicephala (Gracillariidae) [10,11]. At night, Epicephala females visit male flowers and actively collect pollen grains using their modified proboscises (figure 1a).…”

Section: Introductionmentioning

confidence: 99%

Active pollination favours sexual dimorphism in floral scent

et al. 2013

Self Cite

View full text Add to dashboard Cite

Zoophilous flowers often transmit olfactory signals to attract pollinators. In plants with unisexual flowers, such signals are usually similar between the sexes because attraction of the same animal to both male and female flowers is essential for conspecific pollen transfer. Here, we present a remarkable example of sexual dimorphism in floral signal observed in reproductively highly specialized clades of the tribe Phyllantheae (Phyllanthaceae). These plants are pollinated by species-specific, seed-parasitic Epicephala moths (Gracillariidae) that actively collect pollen from male flowers and pollinate the female flowers in which they oviposit; by doing so, they ensure seeds for their offspring. We found that Epicephala-pollinated Phyllanthaceae plants consistently exhibit major qualitative differences in scent between male and female flowers, often involving compounds derived from different biosynthetic pathways. In a choice test, mated female Epicephala moths preferred the scent of male flowers over that of female flowers, suggesting that male floral scent elicits pollen-collecting behaviour. Epicephala pollination evolved multiple times in Phyllantheae, at least thrice accompanied by transition from sexual monomorphism to dimorphism in floral scent. This is the first example in which sexually dimorphic floral scent has evolved to signal an alternative reward provided by each sex, provoking the pollinator's legitimate altruistic behaviour.

show abstract

An obligate pollination mutualism and reciprocal diversification in the tree genus Glochidion (Euphorbiaceae)

Cited by 168 publications

References 15 publications

Diversification through multitrait evolution in a coevolving interaction

Diversification through multitrait evolution in a coevolving interaction

60 million years of co-divergence in the fig–wasp symbiosis

Active pollination favours sexual dimorphism in floral scent

Contact Info

Product

Resources

About