Preventing inbreeding depression in Anacamptis coriophora (Orchidaceae) as a model of food-rewarding orchid

Abstract Pollination of deceptive orchids has enabled scientists to understand how these species avoid inbreeding depression by reducing the number pollinator visits per inflorescence. In rewarding species, which receive a higher rate plant, geitonogamy is usually and therefore risk increases. this study, we assess breeding system orchid A. coriophora, spatio-temporal changes in its fitness as well variation nectar content after pollination. We found that partially selects allogamous pollen if pollinia from same stalk other plants arrive stigma. Furthermore, when self-pollination occurs, despite successful fructification, seed viability significantly lower than cross-pollinated plants. coriophora exhibits does not correlate with any plant feature. Moreover, volume reduced pollination, but sugar concentration maintained. This study emphasizes essential pre-zygotic post-zygotic reproductive barriers are for depression.