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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleSelf-incompatibility, inbreeding depression and crossing potential in five Brazilian Pleurothallis (Orchidaceae) speciespt_BR
dc.contributor.authorBorba, ELpt_BR
dc.contributor.authorSemir, Jpt_BR
dc.contributor.authorShepherd, GJpt_BR
unicamp.authorUniv Estadual Campinas, Inst Biol, Dept Bot, BR-13083970 Campinas, SP, Brazilpt_BR
dc.subjectPleurothallispt_BR
dc.subjectOrchidaceaept_BR
dc.subjectmating systempt_BR
dc.subjectself-incompatibilitypt_BR
dc.subjectinbreeding depressionpt_BR
dc.subjectfruit setpt_BR
dc.subjectseed setpt_BR
dc.subjectpolyembryonypt_BR
dc.subjectinterspecific compatibilitypt_BR
dc.subject.wosReproductive-biologypt_BR
dc.subject.wosBreeding Systemspt_BR
dc.subject.wosGenetic Loadpt_BR
dc.subject.wosPollinationpt_BR
dc.subject.wosEvolutionpt_BR
dc.subject.wosPlantspt_BR
dc.subject.wosLeguminosaept_BR
dc.subject.wosVenezuelapt_BR
dc.subject.wosForestpt_BR
dc.subject.wosFertilizationpt_BR
dc.description.abstractIntra- and interspecific experimental pollinations were made to determine the mating systems and the interspecific crossing potential in individuals from 24 populations of five Pleurothallis species. Pleurothallis johannensis, P. ochreata and P. teres show weak or partial self-incompatibility while P. adamantinensis and P, fabiobarrosii are more strictly self-incompatible. We found no differences in Fruit set between intra- and interpopulation intraspecific crosses, and there was no correlation between Fruit set and genetic variability or inbreeding in these species. All species are interfertile and showed no correlation between genetic similarity and crossing potential. We scored fruits for seed viability and observed a strong inbreeding depression in all populations: however, there was no difference in seed viability among intrapopulation, interpopulation intraspecific and interspecific cross-pollinations. These species are pollinated by flies with a behavioural pattern that facilitates self-pollination. Self-incompatibility and inbreeding depression are apparently important in the maintenance of the unusually high levels of genetic variability found in these species. As generally observed in other orchid species, barriers to hybridization between these Pleurothallis species are at the level of pollination. (C) 2001 Annals of Botany Company.pt
dc.relation.ispartofAnnals Of Botanypt_BR
dc.relation.ispartofabbreviationAnn. Bot.pt_BR
dc.publisher.cityLondonpt_BR
dc.publisher.countryInglaterrapt_BR
dc.publisherAcademic Press Ltdpt_BR
dc.date.issued2001pt_BR
dc.date.monthofcirculationJULpt_BR
dc.identifier.citationAnnals Of Botany. Academic Press Ltd, v. 88, n. 1, n. 89, n. 99, 2001.pt_BR
dc.language.isoenpt_BR
dc.description.volume88pt_BR
dc.description.issuenumber1pt_BR
dc.description.firstpage89pt_BR
dc.description.lastpage99pt_BR
dc.rightsfechadopt_BR
dc.sourceWeb of Sciencept_BR
dc.identifier.issn0305-7364pt_BR
dc.identifier.wosidWOS:000169583600009pt_BR
dc.identifier.doi10.1006/anbo.2001.1435pt_BR
dc.date.available2014-11-18T00:12:15Z
dc.date.available2015-11-26T17:43:45Z-
dc.date.accessioned2014-11-18T00:12:15Z
dc.date.accessioned2015-11-26T17:43:45Z-
dc.description.provenanceMade available in DSpace on 2014-11-18T00:12:15Z (GMT). No. of bitstreams: 1 WOS000169583600009.pdf: 420510 bytes, checksum: 3145d8e3062073c028494716c7007358 (MD5) Previous issue date: 2001en
dc.description.provenanceMade available in DSpace on 2015-11-26T17:43:45Z (GMT). No. of bitstreams: 2 WOS000169583600009.pdf: 420510 bytes, checksum: 3145d8e3062073c028494716c7007358 (MD5) WOS000169583600009.pdf.txt: 54089 bytes, checksum: 4e8cb0e3c13c777655d8e5ee45b7cbe7 (MD5) Previous issue date: 2001en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/71389pt_BR
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/71389
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/71389-
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