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Registros recuperados: 5
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Chromosome numbers in the genus Mimosa L.: cytotaxonomic and evolutionary implications. Repositório Alice
DAHMER, N.; SIMON, M. F.; SCHIFINO-WITTMANN, M. F.; HUGHES, C. E.; MIOTTO, S. T. S.; GIULIANI, J. C..
bitstream/item/181896/1/Dahmer2011-Article-ChromosomeNumbersInTheGenusMim.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Chromosome numbers; Cytotaxonomy; Intraspecific variability; Leguminosae; Mimosa; Evolution.
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/877663
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DNA barcoding in Mucorales: an inventory of biodiversity Naturalis
Walther, G.; Pawłowska, J.; Alastruey-Izquierdo, A.; Wrzosek, M.; Rodriguez-Tudela, J.L.; Dolatabadi, S.; Chakrabarti, A.; Hoog, G.S. de.
The order Mucorales comprises predominantly fast-growing saprotrophic fungi, some of which are used for the fermentation of foodstuffs but it also includes species known to cause infections in patients with severe immune or metabolic impairments. To inventory biodiversity in Mucorales ITS barcodes of 668 strains in 203 taxa were generated covering more than two thirds of the recognised species. Using the ITS sequences, Molecular Operational Taxonomic Units were defined by a similarity threshold of 99 %. An LSU sequence was generated for each unit as well. Analysis of the LSU sequences revealed that conventional phenotypic classifications of the Mucoraceae are highly artificial. The LSU- and ITS-based trees suggest that characters, such as rhizoids and...
Tipo: Article / Letter to the editor Palavras-chave: Backusella; Biodiversity; Clinical relevance; DNA barcoding; Intraspecific variability; ITS; LSU; Mucor; Mucorales; Nomenclature; Rhizomucor; Taxonomy; Zygorhynchus.
Ano: 2013 URL: http://www.repository.naturalis.nl/record/532353
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Morphological variation of Aplectana hylambatis (Nematoda: Cosmocercidae) from different anuran hosts and localities in Argentina Anais da ABC (AABC)
GONZÁLEZ,CYNTHYA E.; GÓMEZ,VALERIA I.; HAMANN,MONIKA I..
Abstract: Aplectana hylambatis is a nematode with a wide geographic distribution and low host specificity. In spite of numerous reports, until this moment, the morphological variations between different hosts and localities have not been studied. We studied 401 specimens collected from five host species from seven localities in Argentina, and examined the following morphological characters: mamelon-like cuticular protuberances anterior to the vulva, structure of the gubernaculum and the spicules, number and arrangement of caudal papillae, and the measurements of twelve characters in females and eleven characters in males. The results showed that mamelon-like protuberances and caudal papillae varied in number and arrangement between different hosts and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amphibians; Cosmocercid nematodes; Intraspecific variability; Morphology.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500615
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The use and limits of ITS data in the analysis of intraspecific variation in Passiflora L. (Passifloraceae) Genet. Mol. Biol.
Mäder,Geraldo; Zamberlan,Priscilla M.; Fagundes,Nelson J.R.; Magnus,Tielli; Salzano,Francisco M.; Bonatto,Sandro L.; Freitas,Loreta B..
The discovery and characterization of informative intraspecific genetic markers is fundamental for evolutionary and conservation genetics studies. Here, we used nuclear ribosomal ITS sequences to access intraspecific genetic diversity in 23 species of the genus Passiflora L. Some degree of variation was detected in 21 of these. The Passiflora and Decaloba (DC.) Rchb. subgenera showed significant differences in the sizes of the two ITS regions and in GC content, which can be related to reproductive characteristics of species in these subgenera. Furthermore, clear geographical patterns in the spatial distribution of sequence types were identified in six species. The results indicate that ITS may be a useful tool for the evaluation of intraspecific genetic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Genetic diversity; Intraspecific variability; ITS; Passiflora; Phylogeography.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000100018
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Variability in the germination of spores among and within natural populations of the endangered tree fern Dicksonia sellowiana Hook. (Xaxim) BABT
Gomes,Gabriela Schmitz; Randi,Áurea Maria; Puchalski,Ângelo; Santos,Daisy da Silva; Reis,Maurício Sedrez dos.
The objective of this study was to analyze the existing variability in the germination of individuals' spores collected from two natural populations of Dicksonia sellowiana in southern Brazil. The largest intrapopulational variation was observed for the spores germination. These results suggested the existence of adaptative strategies that favored the gradual and continuous entrance of new individuals into the gametophytic population. The behavior of the individuals of the species within each population followed a similar pattern of initial development, in spite of conspicuous differences in the population structure. This showed a low differentiation between the populations and the existence of adaptative strategies which were common to both communities.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Arborescent fern; Dicksonia sellowiana; Spore germination; Intraspecific variability; Adaptative strategies.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000100001
Registros recuperados: 5
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