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- W2059797022 abstract "Abstract Despite highly specialized pollination strategies, hybridization is a common phenomenon among Mediterranean deceptive orchids. Food-deceptive species sire a progeny of F 1 unfertile plants, which work as a late post-zygotic barrier. Conversely, when pre-zygotic barriers of sexually deceptive ( Ophrys ) species are absent, the hybrids are fertile and an extensive introgression may occur. Here, we have performed molecular analysis and hand pollination treatments to characterize a hybrid zone of two food-deceptive species, O. mascula and O pauciflora . Hybrids (called O. × colemanii ) have shown different amounts of parental nrDNA, strongly supporting that they are F 2 and/or successive hybrid generations. Comparable high levels of reproductive success have been detected in natural conditions and in experimental crosses suggesting the absence of effective reproductive barriers either between hybrids, either between hybrids and parental species. In light of ecological and distributional features of O. × colemanii across its distribution range, we hypothesize that these populations have originated by secondary contact in the periglacial belt of Apennines. Moreover, the rare and localized O. pauciflora could benefit a genetic enrichment by hybridizing with a widespread related species. O. × colemanii is not a dead end population, but may have a role as potential reserve of adaptive variability and is an unusual stage along the speciation process." @default.
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- W2059797022 date "2012-10-01" @default.
- W2059797022 modified "2023-09-27" @default.
- W2059797022 title "Orchis×colemanii hybridization: Molecular and morphological evidence, seed set success, and evolutionary importance" @default.
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- W2059797022 doi "https://doi.org/10.1016/j.flora.2012.07.006" @default.
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