Results 61 to 70 of about 17,826 (222)

Karyological studies in Brazilian species of Lippia L. (Verbenaceae)

Anais da Academia Brasileira de Ciências, 2012
The genus Lippia (Verbenaceae) comprise around 160 species spread out mainly in South and Central Americas with few African species, some of them with potential medicinal use.
Saulo M. Sousa, Giovana A. Torres, Lyderson F. Viccini   +2 more
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Citogenética de seis genótipos naturais e introduzidos de Hemarthria altissima (Poiret) Stapf & Hubbard (Gramineae) Cytogenetics of six nature and introduced genotypes of Hemarthria altissima (Poiret) Stapf & Hubbard (Gramineae)

Ciência Rural, 1998
Quatro genótipos africanos e dois genótipos brasileiros da gramínea forrageira Hemarthria altissima foram estudados quanto ao número de cromossomos e comportamento meiótico. Foi constatado que o número básico de cromossomos nos genótipos estudados é x=9.
Solange Bosio Tedesco, Alice Battistin, José Francisco Montenegro Valls   +2 more
doaj   +1 more source

Glossario de biotecnologia vegetal. [PDF]

, 2017
bitstream/item/107353/1/CNPH-GLOSS.-DE-BIOTEC.-VEG.-00 ...
BRIGIDO, M. de M., BUSO, J. A., CALDAS, L. S., FERREIRA, A. T., NASCIMENTO, A. S., ROMANO, E., SÀ, F. G. de, TORRES, A. C.   +7 more
core  

Interchromosomal distribution of gamma ray-induced chromatid aberrations in Chinese hamster ovary cells

Genetics and Molecular Biology, 2000
Interchromosomal distributions of breakpoints from chromatid-type aberrations induced by gamma rays in Chinese hamster ovary (CHO) cells were analyzed. In most chromosomes the distribution was as expected from chromosome lengths for simple breaks or the ...
Wilner Martínez-López, Valentina Porro, Gustavo A. Folle, Leticia Mendez-Acuña, John R.K. Savage, Günter Obe   +5 more
doaj   +1 more source

Mapas de ligação dos cromossomos 6, 7, 8, 11 e 13 de uma população brasileira de galinha [PDF]

, 2008
A linkage map is essential not only for quantitative trait loci (QTL) mapping, but also for the organization and location of genes along the chromosomes.
AMBO, Marcel, BOSCHIERO, Clarissa, CAMPOS, Raquel de Lello Rocha, COUTINHO, Luiz Lehmann, LEDUR, Mônica Corrêa, MOURA, Ana Sílvia Meira Tavares, NONES, Kátia, ROSÁRIO, Millor Fernandes do   +7 more
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Heterochromatin differentiation in holocentric chromosomes of Rhynchospora (Cyperaceae)

Genetics and Molecular Biology, 2000
Holocentric chromosomes of six species of Rhynchospora, R. ciliata, R. pubera, R. riparia and R. barbata (2n = 10), R. nervosa (2n = 30) and R. globosa (2n = 36), were stained with CMA3/DAPI fluorochromes or treated with C-banding and sequentially ...
André L.L. Vanzela, Marcelo Guerra
doaj   +1 more source

Evaluation of the mutagenic effect of the iodinated contrast medium Urografina^® 292 using the micronucleus test in mouse bone marrow cells

Anais da Academia Brasileira de Ciências, 2013
Contrast media (CM) are frequently used in diagnostic radiology and in radiotherapy as a diagnostic tool and in treatment planning. Previous studies have demonstrated that these compounds induce chromosomal aberrations. This study evaluates the mutagenic
MÔNICA B.B. BELLE, DANIELA D. LEFFA, DALIANE MAZZORANA, VANESSA M. DE ANDRADE   +3 more
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Cytogenetics of the neotropical flesh fly Pattonela intermutans (Diptera, Sarcophagidae)

Genetics and Molecular Biology, 2000
Pattonella intermutans has 2n = 12 chromosomes including three metacentric and two submetacentric pairs of autosomes and an XX/XY sex chromosome pair.
Patricia Pasquali Parise-Maltempi, Rita Maria Pereira Avancini   +1 more
doaj   +1 more source

Diferentes "estilos" ou "personalidades" científicas: um estudo de caso [PDF]

, 2002
Dentro da história da ciencia é possível encontrar exemplos de diferentes "estilos" ou "personahdades" científicas. Estudiosos que vivem em urna mesma época mmtas vezes reagem de modos completamente diferentes -algumas vezes antagónicos- ao trabalho ...
Al-Chueyr Pereira Martins, Lilian
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A new karyotype for the genus Cavia from a southern island of Brazil (Rodentia - Caviidae)

Genetics and Molecular Biology, 1998
Intraspecific karyotype variation in mammal species is very common and often caused by centromeric fusion of acrocentric chromosomes. We describe here a new karyotype 2n = 62 (FN = 112) for the genus Cavia from the Moleques do Sul Islands, of the ...
A. Gava, T.R.O. Freitas, J. Olimpio
doaj   +1 more source