Sexual mimicry in Mormolyca ringens (Lindl.) Schltr. (Orchidaceae : Maxillariinae)

dc.creatorSinger, RB
dc.creatorFlach, A
dc.creatorKoehler, S
dc.creatorMarsaioli, AJ
dc.creatorAmaral, MCE
dc.date2004
dc.dateJUN
dc.date2014-11-14T10:58:53Z
dc.date2015-11-26T17:14:38Z
dc.date2014-11-14T10:58:53Z
dc.date2015-11-26T17:14:38Z
dc.date.accessioned2018-03-29T00:02:57Z
dc.date.available2018-03-29T00:02:57Z
dc.identifierAnnals Of Botany. Oxford Univ Press, v. 93, n. 6, n. 755, n. 762, 2004.
dc.identifier0305-7364
dc.identifier1095-8290
dc.identifierWOS:000221871800013
dc.identifier10.1093/aob/mch091
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/75706
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/75706
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/75706
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1281859
dc.descriptionBackground and Aims Pollination through sexual mimicry, also known as pseudocopulation, has been suggested to occur ill some genera of the Neotropical orchid subtribe Maxillariinae. However, it has been demonstrated so far only for Trigonidium obtusum. This study reports and illustrates pollination through sexual mimicry in Mormolyca ringens. Methods A total of 70 h were dedicated to the observation of flowers and pollinator behaviour, which was photographically recorded. Flower features involved in pollinator attraction were studied using a stereo-microscope and by SEM analyses. Preliminary observations on the plant breeding system were made by manually self-pollinating flowers. The chemical composition of the fragrance volatiles was determined by GC/MS analysis. Key Results The flower features of M. ringens parallel those of other psuedocopulatory flowers. The labellum shape and indument are reminiscent of all insect. Sexually excited drones of Nannotrigona testaceicornis and Scaptotrigona sp. (both in the Apidae: Meliponini) attempt copulation with the labellum and pollinate the flower in the process. In both bee species, the pollinarium is attached to the scutellum. Pollinator behaviour may promote some degree of self-pollination, but preliminary observations indicate that M. ringens flowers are self-incompatible. Flowers are produced all the year round, which ties in with the production of bee males several times a year. The phylogenetic relationships of M. ringens are discussed and a number of morphological and phenological features supporting them are reported. Conclusions It is expected that further research could bring to light whether other Maxillariinae species are also pollinated through sexual mimicry. When a definitive and robust phylogeny of this subtribe is available, it should be possible to determine how many times pseudocopulation evolved and its possible evolutionary history. (C) 2004 Annals of Botany Company.
dc.description93
dc.description6
dc.description755
dc.description762
dc.languageen
dc.publisherOxford Univ Press
dc.publisherOxford
dc.publisherInglaterra
dc.relationAnnals Of Botany
dc.relationAnn. Bot.
dc.rightsfechado
dc.rightshttp://www.oxfordjournals.org/access_purchase/self-archiving_policyb.html
dc.sourceWeb of Science
dc.subjectMaxillariinae
dc.subjectMormolyca
dc.subjectMaxillaria
dc.subjectOrchidaceae
dc.subjectpollination
dc.subjectpseudocopulation
dc.subjectsexual mimicry
dc.subjectmeliponini
dc.subjectDeceptive Orchid
dc.subjectPollination
dc.titleSexual mimicry in Mormolyca ringens (Lindl.) Schltr. (Orchidaceae : Maxillariinae)
dc.typeArtículos de revistas


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