{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Kissling J"],"funding":["Swiss National Science Foundation"],"pagination":["95-102"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC3690988"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["112(1)"],"pubmed_abstract":["<h4>Backgrounds and aims</h4>The spatial separation of stigmas and anthers (herkogamy) in flowering plants functions to reduce self-pollination and avoid interference between pollen dispersal and receipt. Little is known about the evolutionary relationships among the three main forms of herkogamy - approach, reverse and reciprocal herkogamy (distyly) - or about transitions to and from a non-herkogamous condition. This problem was examined in Exochaenium (Gentianaceae), a genus of African herbs that exhibits considerable variation in floral morphology, including the three forms of herkogamy.<h4>Methods</h4>Using maximum parsimony and maximum likelihood methods, the evolutionary history of herkogamic and non-herkogamic conditions was reconstructed from a molecular phylogeny of 15 species of "],"journal":["Annals of botany"],"pubmed_title":["Variation and evolution of herkogamy in Exochaenium (Gentianaceae): implications for the evolution of distyly."],"pmcid":["PMC3690988"],"funding_grant_id":["129140"],"pubmed_authors":["Barrett SC","Kissling J"],"additional_accession":[]},"is_claimable":false,"name":"Variation and evolution of herkogamy in Exochaenium (Gentianaceae): implications for the evolution of distyly.","description":"<h4>Backgrounds and aims</h4>The spatial separation of stigmas and anthers (herkogamy) in flowering plants functions to reduce self-pollination and avoid interference between pollen dispersal and receipt. Little is known about the evolutionary relationships among the three main forms of herkogamy - approach, reverse and reciprocal herkogamy (distyly) - or about transitions to and from a non-herkogamous condition. This problem was examined in Exochaenium (Gentianaceae), a genus of African herbs that exhibits considerable variation in floral morphology, including the three forms of herkogamy.<h4>Methods</h4>Using maximum parsimony and maximum likelihood methods, the evolutionary history of herkogamic and non-herkogamic conditions was reconstructed from a molecular phylogeny of 15 species of ","dates":{"release":"2013-01-01T00:00:00Z","publication":"2013 Jul","modification":"2026-07-15T11:53:45.56Z","creation":"2019-03-27T00:14:22Z"},"accession":"S-EPMC3690988","cross_references":{"pubmed":["23639954"],"doi":["10.1093/aob/mct097"]}}