Evolution of trichome morphology in Mimosa (Leguminosae-Mimosoideae)

dc.creatorSantos-Silva, J
dc.creatorTozzi, AMGD
dc.creatorSimon, MF
dc.creatorUrquiza, NG
dc.creatorMorales, M
dc.date2013
dc.dateAUG 1
dc.date2014-07-30T17:30:04Z
dc.date2015-11-26T16:49:12Z
dc.date2014-07-30T17:30:04Z
dc.date2015-11-26T16:49:12Z
dc.date.accessioned2018-03-28T23:35:52Z
dc.date.available2018-03-28T23:35:52Z
dc.identifierPhytotaxa. Magnolia Press, v. 119, n. 1, n. 1, n. 20, 2013.
dc.identifier1179-3155
dc.identifierWOS:000322651200001
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/66176
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/66176
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1275379
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionWith more than 500 species, Mimosa L. is one of the largest genera of the Leguminosae. It exhibits considerable trichome diversity among species. Trichome types have been used as diagnostic characters, but some are not well known and have been poorly described in taxonomic works, causing some difficulties for species identification and description. The morphology of trichomes of 35 species was studied using scanning electron microscopy and light microscopy to define the types of trichomes precisely. An ancestral character state reconstruction using a densely-sampled phylogeny of the genus was performed in order to investigate the evolution of trichome types in Mimosa. Two basic types of trichomes can be distinguished: glandular and non-glandular. The glandular trichomes can be sessile or stalked. The non-glandular trichomes can be unbranched or branched. Unbranched trichomes are unicellular and conical or cylindrical, whereas branched trichomes are multicellular and verruciform, medusiform, plumose, barbellate, stellate, stellate-lepidote, or lepidote. Character optimization analysis suggests that glandular and branched trichomes are derived and evolved independently in different lineages within Mimosa. The ancestral condition in Mimosa was probably non-glandular and unbranched trichomes, which was retained from piptadenioid ancestors. Our study provides a first insight into the evolutionary history of trichome morphology in the genus. Despite high levels of homoplasy, trichome morphology offers a set of characters that can be used for differentiating species and species groups in combination with other characters.
dc.description119
dc.description1
dc.description1
dc.description20
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionRupert C. Barneby Award from the New York Botanical Garden
dc.descriptionstaff of the Electronic Microscopy Lab at UNICAMP for their support
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFAPESP [2009/51593-6]
dc.languageen
dc.publisherMagnolia Press
dc.publisherAuckland
dc.publisherNova Zelândia
dc.relationPhytotaxa
dc.relationPhytotaxa
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectbranched trichomes
dc.subjectglandular trichomes
dc.subjectmicromorphology
dc.subjectphylogeny
dc.subjecttaxonomy
dc.subjectPlastid Trnl-f
dc.subjectNatural Enemies
dc.subjectPlant Trichome
dc.subjectSequence Data
dc.subjectPhylogeny
dc.subjectLamiaceae
dc.subjectDefense
dc.titleEvolution of trichome morphology in Mimosa (Leguminosae-Mimosoideae)
dc.typeArtículos de revistas


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