Floral traits and mating systems in sister species of Nicotiana: interpopulational variability and sympatry effects

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dc.audiencegeneralPublices_MX
dc.contributor.authorFigueroa Castro, Dulce María
dc.contributor.authorHoltsford, Timothy P.
dc.creatorFigueroa Castro, Dulce María; 0000-0003-3611-191X
dc.date.accessioned2023-04-18T16:39:43Z
dc.date.available2023-04-18T16:39:43Z
dc.date.issued2010
dc.description.abstract"Mating systems of Angiosperms are important determinants of population genetic structure and evolutionary potential. Nicotiana longiflora and N. plumbaginifolia are self-compatible, sister species, with contrasting floral morphology and can be found in allopatry and sympatry in North Argentina. In two sympatric and 10 nearby allopatric populations we studied their natural interpopulational variability and sympatry effects on corolla length and anther–stigma distance. We also estimated seed set by selfing and via pollinators using pollination treatments. Both corolla length and anther–stigma distance varied significantly among N. longiflora, but not among N. plumbaginifolia populations. We did not detect an effect of sympatry in either species for any of the floral traits studied. Pollination treatments suggest that N. longiflora is mainly an outcrosser, although selfing occurs at some extent. Seed set attributed to pollinators was significantly higher in N. longiflora whereas most seeds in N. plumbaginifolia were sired through self-pollination. In N. plumbaginifolia, selfing seems to assure reproduction in sympatric populations, where floral visitors have a strong preference for N. longiflora. Corolla length was significantly negatively correlated with an increase in the percentage of self-seeds estimated by pollination treatments. Within N. longiflora, anther–stigma distance showed a positive correlation with selfing".es_MX
dc.identifierhttps://link.springer.com/article/10.1007/s11258-010-9777-y
dc.identifier.urihttps://hdl.handle.net/20.500.12371/18219
dc.language.isoenges_MX
dc.rights.accesopenAccesses_MX
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0es_MX
dc.subject.otherFloral traits associated with mating systemes_MX
dc.subject.otherInterpopulational variabilityes_MX
dc.subject.otherMating system evolutiones_MX
dc.subject.otherNicotiana longifloraes_MX
dc.subject.otherNicotiana plumbaginifoliaes_MX
dc.subject.otherSympatry effectses_MX
dc.titleFloral traits and mating systems in sister species of Nicotiana: interpopulational variability and sympatry effectses_MX
dc.typeArtículoes_MX
dc.type.conacytarticlees_MX
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