Molecular Taxonomy
Mostrando 13-24 de 156 artigos, teses e dissertações.
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13. Pollen diversity in selected species of the tribe Chironieae (Gentianaceae Juss.) that occur in the Atlantic Forest, Brazil
ABSTRACT Based on molecular data, the tribe Chironieae (Gentianaceae) is divided into three subtribes. This study aims to describe the pollen morphology of representatives of two of the three subtribes that occur in the Atlantic Forest in order to contribute to a better understanding of the palynology of these taxa and to clarify the taxonomy of the family:
Acta Bot. Bras.. Publicado em: 2017-03
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14. 'Species' from two different butterfly genera combined into one: description of a new genus of Euptychiina (Nymphalidae: Satyrinae) with unusually variable wing pattern
ABSTRACT Sepona Freitas and Barbosa, gen. nov. is proposed for the Neotropical satyrine butterfly species Euptychia punctataWeymer, 1911 and its junior subjective synonyms Euptychia griseolaWeymer, 1911 and Taygetis indecisa Ribeiro, 1931. The new genus has a distinctive wing pattern and shape of the valvae in the male genitalia, the latter being a unique au
Rev. Bras. entomol.. Publicado em: 2016-06
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15. External morphology of immature stages of Zaretis strigosus (Gmelin) and Siderone galanthis catarina Dottax and Pierre comb. nov., with taxonomic notes on Siderone (Lepidoptera: Nymphalidae: Charaxinae)
ABSTRACT The external morphology of immature stages of Zaretis strigosus (Gmelin, [1790]) and Siderone galanthis catarina Dottax and Pierre, 2009 comb. nov. from southern Brazil are described. Additionally, morphology of the adults and sequences of the mitochondrial gene cytochrome oxidase, subunit I, were analyzed in order to evaluate the taxonomy of Sidero
Rev. Bras. entomol.. Publicado em: 2015-12
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16. Response paper: Morphometric article by Mejía et al. 2015 alluding genera Herichthys and Nosferatu displays serious inconsistencies
ABSTRACT In the present response paper, the article entitled "Morphometric variation of the Herichthys bartoni (Bean, 1892) species group (Teleostei: Cichlidae): How many species comprise H. labridens (Pellegrin, 1903)?" by Mejía et al . 2015 is critically reviewed. The current review pinpoints some of the more conspicuous conceptual inconsistencies and fun
Neotrop. ichthyol.. Publicado em: 2015-12
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17. Taxonomy of Sinningia Nees (Gesneriaceae) in Rio Grande do Sul, southern Brazil
ABSTRACTThe genus Sinningia belongs to the Neotropical tribe Gesnerieae, subtribe Ligeriinae, presently consisting of only three genera, Paliavana, Sinnigiaand Vanhouttea. These genera were separated from a larger concept of tribe Gloxinieae based on phylogenetic studies with molecular data. In Rio Grande do Sul, southern Brazil, 12 species and one natural h
Acta Bot. Bras.. Publicado em: 2015-09
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18. Seed coat diversity in some tribes of Cucurbitaceae: implications for taxonomy and species identification
To evaluate their diagnostic value in systematic studies, seed coat morphology for 16 taxa from 11 genera of Cucurbitaceae were examined using stereomicroscopy and scanning electron microscopy. The taxa included representatives of the tribes Benincaseae, Bryonieae, Coniandreae, and Luffeae in order to evaluate their diagnostic value in systematic studies. Ma
Acta Bot. Bras.. Publicado em: 2015-03
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19. Taxonomy and evolutionary relationships of Passiflora subg. Decaloba supersect. Decaloba sect. Xerogona (Passifloraceae): contributions of palynological, morphological and molecular studies
Passiflora subg. Decaloba supersect. Decaloba sect. Xerogona (Passifloraceae) is a tropical and subtropical group comprising 14 species that occur in tropical biomes throughout Latin America, including the Atlantic Forest. The section Xerogona comprises herbaceous vines characterized by a lack of petiole glands on their leaves, of bracts and of ocelli on the
Acta Bot. Bras.. Publicado em: 2014-09
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20. Taxonomy of the phyllosoma of Panulirus inflatus (Bouvier, 1895) and P. gracilis Streets, 1871, based on morphometry and molecular analysis
Analysis of wild phyllosoma of Panulirus inflatus (Bouvier, 1895) and P. gracilis Streets, 1871 determined the morphological structures having taxonomic value for differentiation of the two species, in addition to the structures described previously. Of 54 phyllosoma, species identity was confirmed by PCR-restriction fragment length polymorphism (RFLP) on 42
Nauplius. Publicado em: 2014-06
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21. Aproximaciones cientificas al mestizo mexicano
The colonial category of mestizo was an ideological tool that shaped national identity in the post-revolutionary period in Mexico. The Indian-mestizo axis functioned to organize the ethnic and political interactions of the state. Doctors and anthropologists reinforced this dual taxonomy in studies of human populations, using biomedical markers to produce dif
Hist. cienc. saude-Manguinhos. Publicado em: 2013-06
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22. Molecular evidence for the polyphyly of Bostryx (Gastropoda: Bulimulidae) and genetic diversity of Bostryx aguilari
Bostryx is largely distributed in Andean Valleys and Lomas formations along the coast of Peru and Chile. One species, Bostryx aguilari, is restricted to Lomas formations located in the Department of Lima (Peru). The use of genetic information has become essential in phylogenetic and population studies with conservation purposes. Considering the rapid degrada
Zoologia (Curitiba). Publicado em: 2013-02
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23. Caracterização da diversidade de fungos filamentosos associados a esponjas marinhas e avaliação da produção de lacase = : Diversity of filamentous fungi associated with marine sponges and evaluation of laccase production / Diversity of filamentous fungi associated with marine sponges and evaluation of laccase production
The ocean represents a promissing habitat in the search for new microorganisms, which may have the ability to produce enzymes of industrial interests different from that produced by their terrestrial counterparts. In this context, two samples of the marine sponge Dragmacidon reticulatum were collected on northern coast of São Paulo State, aiming at the char
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/09/2012
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24. Revisão taxonômica e filogenia de Orthophytum Beer (Bromeliaceae, Bromelioideae) / Taxonomic revision and phylogeny of Orthophytum Beer (Bromeliaceae, Bromelioideae)
The genus Orthophytum Beer (Bromeliaceae) comprises 46 species geographically distributed in eastern Brazil extending from the state of Ceará in the North, to Minas Gerais and Espírito Santo in the South. The growth form of these plants is typically lithophytic, only rarely terrestrial, and granitic or quartzitic rocky outcrops constitute their favorite su
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/09/2012