Mechanism of pollinator specificity in Ficus

Mechanism of pollinator specificity in Ficus

Mechanism of pol­lin­ator spe­cificity in Ficus

Pollinator spe­cificity facil­it­ates repro­duct­ive isol­a­tion among plants, and mech­an­isms that gen­er­ate spe­cificity influ­ence spe­cies bound­ar­ies. Wang et al. use two vari­et­ies of an Asian fig tree, Ficus semi­cordata, that are host to two dif­fer­ent Ceratosolen wasp pol­lin­at­ors to invest­ig­ate mech­an­isms of pol­lin­ator spe­cificity among sym­patric, closely related taxa. They find that only one of the wasps dis­plays a pref­er­ence between the dif­fer­ent receptive-phase floral scents of the two fig vari­et­ies, and that spe­cificity is rein­forced by phys­ical con­tact cues on the sur­face of the plants. When pol­lin­at­ors enter atyp­ical hosts, post-zygotic factors reduce but do not pre­vent the pro­duc­tion of hybrid offspring.

Annals of Botany Office.

The Annals of Botany Office is based at the University of Leicester.

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