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Reproductive biology of the threatened Lilium pomponium (Liliaceae), a species endemic to Maritime and Ligurian Alps
Univ Genoa, DISTAV, Corso Europa 26, I-16132 Genoa, Italy.
Univ Pisa, Dept Biol, Unit Bot, Via Derna 1, I-56126 Pisa, Italy.
Univ Genoa, DIFAR, Viale Cembrano 4, I-16148 Genoa, Italy.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Plant Ecology and Evolution.
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2018 (English)In: Journal of plant research, ISSN 0918-9440, E-ISSN 1618-0860, Vol. 131, no 4, p. 633-640Article in journal (Refereed) Published
Abstract [en]

Pollination ecology and breeding system of Lilium pomponium L. were studied, and their effect on the reproductive outcome was assessed. This species has high conservation interest in Europe, because it is included in Annex V of the EU Habitat Directive and it is one out of the five Lilium species listed in IUCN Global Red List. To achieve our aim, the pollen vectors as well as the effect of bagging, emasculation and artificial pollination on reproductive output were studied. The most frequent visitor was the Lepidopteran Gonepteryx rhamnii. In general, reproductive outputs were close to zero for all the self-pollination treatments; however, geitonogamy and facilitated selfing seem slightly more efficient than autogamy, as also confirmed by self-compatibility and autofertility indices. Altogether, our results suggest a self-incompatible outcrossing breeding system, with a poor capacity for selfing. Nevertheless, climate change and anthropic threats might promote a shift toward self-fertilization, even maladaptive, favouring the few individuals able to produce selfed seeds.

Place, publisher, year, edition, pages
SPRINGER JAPAN KK , 2018. Vol. 131, no 4, p. 633-640
Keywords [en]
Conservation, Pollen vectors, Reproductive strategy, Threatened species
National Category
Botany Ecology
Identifiers
URN: urn:nbn:se:uu:diva-359998DOI: 10.1007/s10265-018-1019-8ISI: 000436109200006PubMedID: 29500748OAI: oai:DiVA.org:uu-359998DiVA, id: diva2:1248263
Available from: 2018-09-14 Created: 2018-09-14 Last updated: 2018-09-14Bibliographically approved

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Guerrina, Maria

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