Phylogeny
Mostrando 25-36 de 970 artigos, teses e dissertações.
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25. Molecular evolution and functional divergence of alcohol dehydrogenases in animals, fungi and plants
Abstract Alcohol dehydrogenases belong to the large superfamily of medium-chain dehydrogenases/reductases, which occur throughout the biological world and are involved with many important metabolic routes. We considered the phylogeny of 190 ADH sequences of animals, fungi, and plants. Non-class III Caenorhabditis elegans ADHs were seen closely related to tet
Genet. Mol. Biol.. Publicado em: 2018
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26. Parasitic communities of Hoplosternum littorale (Hancock, 1828) as indicators of environmental impact
ABSTRACT The parasites are indicative of several biological aspects of their hosts, including their diet, migration, recruitment and phylogeny, but they can also be direct indicators of the environmental quality. Hoplosternum littorale is a fish that has a high commercial value in some South American countries. The fishes were collected from January to July
An. Acad. Bras. Ciênc.. Publicado em: 23/10/2017
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27. Description of ten additional ossicles in the foregut of the freshwater crabs Sylviocarcinus pictus and Valdivia serrata (Decapoda: Trichodactylidae)
ABSTRACT The morphology of stomach ossicles of decapod crustaceans provides valuable information on their phylogeny and biology. We herein described ten new ossicles in the foreguts of two trichodactylid crabs, Sylviocarcinus pictus (H. Milne-Edwards, 1853) and Valdivia serrata White, 1847, in addition to previously described 38 ossicles, which are also reco
Zoologia (Curitiba). Publicado em: 19/10/2017
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28. Appendicular origin and structure of the spur of Vochysiaceae flowers
ABSTRACT Floral nectaries are linked with animal pollinators and floral specialization, characterizing some plant groups, such as the mostly Neotropical Vochysiaceae. The phylogeny of these plants has been revised based on molecular data, but their conspicuous spurs were mostly neglected. The appendicular or receptacular origin of these spurs has been discus
Acta Bot. Bras.. Publicado em: 2017-09
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29. Morphoanatomy of nectaries of Chamaecrista (L.) Moench sections Chamaecrista , Caliciopsis and Xerocalyx (Leguminosae: Caesalpinioideae)
ABSTRACT Nectaries are specialized structures that secrete nectar. Several species of Chamaecrista possess nectaries on the petiole, which have been shown to vary widely in morphology and the chemical nature of their secretion. However, a comprehensive investigation of the nectaries of the clade formed by sect. Chamaecrista, Caliciopsis and Xerocalyx has yet
Acta Bot. Bras.. Publicado em: 2017-09
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30. Phylogeny of the Neotropical longhorn beetle genus Ateralphus (Coleoptera: Cerambycidae: Lamiinae)
ABSTRACT Ateralphus Restello, Iannuzzi & Marinoni, 2001 is a Neotropical genus of longhorn beetles composed of nine species. This genus was proposed from splitting Alphus White, 1855 into other two genera: Ateralphus and Exalphus Restello, Iannuzzi & Marinoni, 2001. Even though Ateralphus (nine species), Alphus (four) and Exalphus (18) were recently revised,
Zoologia (Curitiba). Publicado em: 12/06/2017
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31. Updated angiosperm family tree for analyzing phylogenetic diversity and community structure
ABSTRACT The computation of phylogenetic diversity and phylogenetic community structure demands an accurately calibrated, high-resolution phylogeny, which reflects current knowledge regarding diversification within the group of interest. Herein we present the angiosperm phylogeny R20160415.new, which is based on the topology proposed by the Angiosperm Phylog
Acta Bot. Bras.. Publicado em: 2017-06
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32. Biometry of neotropical invertebrates inhabiting floodplain rivers: unraveling bionomy
ABSTRACT Currently, it is widely recognized that invertebrates play key roles in neotropical floodplains and in many other environments worldwide. However, little information has been published concerning their biometry, in spite that it represents an essential tool for many different studies. Here, we provided length-mass and length-length relationships by
Iheringia, Sér. Zool.. Publicado em: 08/05/2017
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33. Phylogeny and new species of the Neotropical bee genus Paroxystoglossa Moure (Hymenoptera, Apoidea)
ABSTRACT Paroxystoglossa is a solitary, ground-nesting bee genus. It was revised in 1960 and currently includes nine species from Argentina, Brazil and Paraguay. The objectives of this contribution are to provide a morphological phylogeny for the group and to describe two new species: P. levigata n.sp. and P. mourella n.sp. Paroxystoglossa is monophyletic an
Rev. Bras. entomol.. Publicado em: 2017-04
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34. Cyanobacterial nitrogenases: phylogenetic diversity, regulation and functional predictions
Abstract Cyanobacteria is a remarkable group of prokaryotic photosynthetic microorganisms, with several genera capable of fixing atmospheric nitrogen (N2) and presenting a wide range of morphologies. Although the nitrogenase complex is not present in all cyanobacterial taxa, it is spread across several cyanobacterial strains. The nitrogenase complex has also
Genet. Mol. Biol.. Publicado em: 20/03/2017
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35. The flower anatomy of five species of Myrteae and its contribution to the taxonomy of Myrtaceae
ABSTRACT Considerable effort has been spent towards understanding the phylogeny of Myrteae, and based on the phylogenetic data presently available the traditional subdivision of Myrteae into three subtribes is not supported. The present paper aims to assess the usefulness of floral characters in distinguishing five species that represent five of the six Sout
Acta Bot. Bras.. Publicado em: 13/03/2017
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36. Survey of fungi associated with cassava root rot from different producing regions in Brazil
ABSTRACT: Although root rot is one of the major diseases affecting Brazilian cassava (Manihot esculenta Crantz.), little is known about the diversity of root rot pathogens. In this study, diseased plants exhibiting root rot symptoms were collected from cassava-producing regions in five Brazilian states: Bahia, Sergipe, Paraíba, Maranhão, Tocantins, and Par
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-02