Interfamilial Relationships in Myrtales: Molecular Phylogeny and Patterns of Morphological Evolution

Conti, Elena; Litt, Amy; Wilson, Peter G.; Graham, Shirley A.; Briggs, Barbara G.; Johnson, L. A. S.; Sytsma, Kenneth J.

doi:10.2307/2419432

Cited by 110 publications

(86 citation statements)

References 34 publications

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“…1), exceto em espécime com identidade duvidosa, ora designada como Myrcia sphaerocarpa, ora como M. multiflora (Jorge et al 2000) e que foi excluída da análise geral. Conforme estudos filogenéticos de Myrtaceae feitos por Conti et al (1997) e Lucas et al Tabela 1. Caracteres anatômicos foliares em espécies de Myrtaceae: + presença acentuada; ± presença ocasional ou pouco acentuada -ausência; número sublinhado: valor estimado; campo limpo: informação não especificada na fonte analisada; AB: abaxial; AD: adaxial.…”

Section: Discussionunclassified

“…As espécies desta família têm folhas simples, com glândulas oleíferas, flores polistêmones, ovário mediano a ínfero (Conti et al 1997), floema interno e pontoações ornamentadas nos vasos do xilema (Johnson & Briggs 1984).…”

Section: Introductionunclassified

“…Estudos filogenéticos de Myrtales revelaram que a ordem é monofilética e inclui Vochysiaceae (Conti et al 1997). Myrtaceae sensu lato -s.l.…”

Section: Introductionunclassified

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Anatomia foliar de espécies de Myrtaceae: contribuições à taxonomia e filogenia

et al. 2009

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Recebido em 3/01/2008. Aceito em 25/06/2008 RESUMO -(Anatomia foliar de espécies de Myrtaceae: contribuições à taxonomia e filogenia). Trabalhos taxonômicos e filogenéticos têm utilizado informações anatômicas e para contribuir com estes estudos examinaram-se cortes paradérmicos e transversais da porção mediana foliar de Campomanesia adamantium (Camb.) O. Berg, Myrcia cordiifolia DC., M. decrescens O. Berg e M. torta D.C. Os caracteres anatômicos foram comparados com os de outras espécies descritas na literatura. São características comuns às quatro espécies examinadas: epiderme uniestratificada, tricomas unicelulares, folhas hipoestomáticas, estômatos paracíticos, cavidades secretoras em ambas as faces, mesofilo dorsiventral e nervura mediana com feixes bicolaterais. Destacam-se os seguintes caracteres úteis para a taxonomia da família: formato das células comuns da epiderme, tricomas dibraquiados ou não, camadas celulares incolores subepidérmicas e formato da nervura mediana. O formato e número das células teto das glândulas foliares têm utilidade taxonômica. O exame de 144 exsicatas evidenciou que a glabrescência é um fenômeno comum. A queda dos tricomas pode ser devido à sua base estreita e à ausência de célula pedal nos mesmos. Analisaram-se os caracteres à luz de estudos filogenéticos recentes e do ponto de vista ecológico, destacando a hipótese relacionada às células epidérmicas com possível função de célula de transferência. As características anatômicas forneceram dados para análises comparativas mais amplas entre os táxons de Myrtaceae e possibilitaram a construção de um cladograma, onde espécies de Leptospermum e Eucalyptus ocuparam posição basal, em consonância com filogenias relatadas na literatura. Palavras-chave: célula de transferência, célula teto, evolução, folha, taxonomiaABSTRACT -(Leaf anatomy of Myrtaceae species: contributions to the taxonomy and phylogeny). Taxonomical and phylogenetical studies have used anatomical information. In order to contribute to these studies, paradermal and cross sections of the median leaf blade portion of Campomanesia adamantium (Camb.) O. Berg, Myrcia cordiifolia DC., M. decrescens O. Berg and M. torta D.C. were examined. The anatomical characters were compared to the other species described in the literature. Some characteristics were irrespective of the four examined species: unistratified epidermis, unicellular trichomes, hypostomatic leaves, paracytic stomata, oil glands on both sides, dorsiventral mesophyll and bicollateral bundles on the midrib. The following characters appear to be taxonomically useful in the family: epidermal common cell format, presence of dibrachiate trichomes, presence of colorless subepidermal cell layers and midrib shape. The morphology and number of overlying cells associated with the glands have taxonomic utility. The 144 exsicates examination showed that the glabrescence is a widespread phenomenon in the Myrtaceae. The trichome fall can be due to its narrow base and to the foot cell absence. The characters were analyzed in the...

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Section: Discussionunclassified

Section: Introductionunclassified

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Anatomia foliar de espécies de Myrtaceae: contribuições à taxonomia e filogenia

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“…Conversely, the loss of nuclear migration at the two-nucleate stage can account for the origin of the fourcelled, four-nucleate female gametophyte from an eight-nucleate ancestor, as is the case in Onagraceae (parsimony analysis indicates that the ancestors of Onagraceae had a Polygonumtype female gametophyte [Tobe and Raven, 1983;Conti et al, 1996Conti et al, , 1997). Onagraceae is not the only group in which the chalazal module has been lost.…”

Section: S126mentioning

confidence: 99%

Developmental Evolution of the Sexual Process in Ancient Flowering Plant Lineages

Friedman

Williams

2004

THE PLANT CELL ONLINE

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“…In addition to its presence on Eucalyptus, this pathogen has been recorded on clove (Syzygium aromaticum), like Eucalyptus a member of the Myrtaceae and Tibouchina spp. which is a member of the Melastomataceae, closely related to the Myrtaceae in the Myrtales [14] . Originally, Hodges et al [15] suggested that C. cubensis may have been spread widely on clove (native to the Molucca Islands of Indonesia), throughout areas where it is now a pathogen of eucalypts.…”

Section: Introductionmentioning

confidence: 99%

Forest Pathology: The Threat of Disease to Plantation Forests in Indonesia

Barber¹

2004

Plant Pathology J.

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There has been a significant increase in the establishment of forestry plantation species in Indonesia over the last decade and it appears that this is likely to continue as the native forest resource rapidly dwindles. The future success of these monocultures will be dependent upon future breeding programs that not only select for yield and form, but more importantly a high level of resistance to a range of pests and diseases. A number of devastating diseases have been found in Indonesia and in other surrounding countries of South East Asia, with further discoveries highly similar. It is of utmost importance that the industry adopts a pro-active approach to combat these diseases by embracing breeding programs in the very near future. Forest pathologists will play a key role in the success of this breeding. It is therefore essential that both industry and government provide substantial support for forest pathology research in the future. This study discusses some of the potential diseases capable of causing significant losses to Eucalyptus plantations. The importance of selection of highly disease resistant genotypes and the essential role of taxonomists and forest pathologists to the future success of the industry are discussed.

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Interfamilial Relationships in Myrtales: Molecular Phylogeny and Patterns of Morphological Evolution

Cited by 110 publications

References 34 publications

Anatomia foliar de espécies de Myrtaceae: contribuições à taxonomia e filogenia

Anatomia foliar de espécies de Myrtaceae: contribuições à taxonomia e filogenia

Developmental Evolution of the Sexual Process in Ancient Flowering Plant Lineages

Forest Pathology: The Threat of Disease to Plantation Forests in Indonesia

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