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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleFly-pollinated Pleurothallis (Orchidaceae) species have high genetic variability: Evidence from isozyme markerspt_BR
dc.contributor.authorBorba, ELpt_BR
dc.contributor.authorFelix, JMpt_BR
dc.contributor.authorSolferini, VNpt_BR
dc.contributor.authorSemir, Jpt_BR
unicamp.authorUniv Estadual Campinas, Dept Bot, Inst Biol, BR-13083970 Campinas, SP, Brazil Univ Estadual Campinas, Dept Genet & Evolucao, Inst Biol, BR-13083970 Campinas, SP, Brazilpt_BR
dc.subjectisozymespt_BR
dc.subjectgeneric variabilitypt_BR
dc.subjectOrchidaceaept_BR
dc.subjectPleurothallispt_BR
dc.subjectpopulation geneticspt_BR
dc.subject.wosStarch-gel Electrophoresispt_BR
dc.subject.wosEnzyme Electrophoresispt_BR
dc.subject.wosAllozyme Variationpt_BR
dc.subject.wosFlowpt_BR
dc.subject.wosSystematicspt_BR
dc.subject.wosPollenpt_BR
dc.subject.wosBulbophyllumpt_BR
dc.subject.wosCompilationpt_BR
dc.subject.wosDispersalpt_BR
dc.subject.wosBufferspt_BR
dc.description.abstractWe conducted an isozyme study in 22 populations of five Pleurothallis (Orchidaceae) species (12 loci in nine enzymatic systems). The genetic variability in all populations is surprisingly high (P = 58-83%, A = 2.1-3.8, H-e = 0.25-0.43) in spite of the fact that the five species are pollinated by small flies whose behavior enables self-pollination. We suggest that self-incompatibility, inbreeding depression, and mechanical barriers that prevent self-pollination in these species are responsible for the maintainance of the high genetic variability. These traits are uncommon in Orchidaceae, but have been observed in these and some other species pollinated by flies or other pollinators with behavior that facilitates self-pollination The genetic similarity among conspecific populations is also high for species with very shea-range flying pollinators. Only one population of P. teres presented values of genetic similarity lower than usually observed in allopatric conspecific populations. Morphology, however, does not support its segregation as a new taxon. Ail species can be recognized by their enzymatic patterns, and the results agree with recently proposed taxonomic realignments. Conversely, the supposed affinities among these species based on floral morphology are not supported, and we hypothesize that it may be due to convergence in species with similar pollinators.pt
dc.relation.ispartofAmerican Journal Of Botanypt_BR
dc.relation.ispartofabbreviationAm. J. Bot.pt_BR
dc.publisher.cityColumbuspt_BR
dc.publisher.countryEUApt_BR
dc.publisherBotanical Soc Amer Incpt_BR
dc.date.issued2001pt_BR
dc.date.monthofcirculationMARpt_BR
dc.identifier.citationAmerican Journal Of Botany. Botanical Soc Amer Inc, v. 88, n. 3, n. 419, n. 428, 2001.pt_BR
dc.language.isoenpt_BR
dc.description.volume88pt_BR
dc.description.issuenumber3pt_BR
dc.description.firstpage419pt_BR
dc.description.lastpage428pt_BR
dc.rightsfechadopt_BR
dc.sourceWeb of Sciencept_BR
dc.identifier.issn0002-9122pt_BR
dc.identifier.wosidWOS:000167595000007pt_BR
dc.identifier.doi10.2307/2657106pt_BR
dc.date.available2014-11-18T07:02:14Z
dc.date.available2015-11-26T17:47:38Z-
dc.date.accessioned2014-11-18T07:02:14Z
dc.date.accessioned2015-11-26T17:47:38Z-
dc.description.provenanceMade available in DSpace on 2014-11-18T07:02:14Z (GMT). No. of bitstreams: 1 WOS000167595000007.pdf: 239651 bytes, checksum: e894edfdea63c0490d33526f805f51cc (MD5) Previous issue date: 2001en
dc.description.provenanceMade available in DSpace on 2015-11-26T17:47:38Z (GMT). No. of bitstreams: 2 WOS000167595000007.pdf: 239651 bytes, checksum: e894edfdea63c0490d33526f805f51cc (MD5) WOS000167595000007.pdf.txt: 55448 bytes, checksum: 4a0cd2f92e2378180a6f9a1087010ab8 (MD5) Previous issue date: 2001en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/67354pt_BR
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/67354
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/67354-
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