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Mostrando ítems 1-10 de 1993
Interspecific fish hybrids in Brazil: management of genetic resources for sustainable use
(Wiley-Blackwell, 2012-06-01)
Serrasalmid and pimelodid fish hybrids represent important advances for aquaculture in Brazil, but they also constitute serious genetic risks to cultivated and natural populations. Serrasalmid hybrids (tambacu, tambatinga ...
Morphological variation in wild marmosets (Callithrix penicillata and C. geoffroyi) and their hybrids
(Evolutionary Biology, 2018)
Cytogenetic characterization of F1, F2 and backcross hybrids of the Neotropical catfish species Pseudoplatystoma corruscans and Pseudoplatystoma reticulatum (Pimelodidae, Siluriformes)
(Sociedade Brasileira de Genética, 2012-01-01)
The cytogenetic characteristics of Pseudoplatystoma corruscans and Pseudoplatystoma reticulatum and their F1, F2 and backcross hybrids were assessed by using chromosome banding techniques. The diploid number of 56 chromosomes ...
Polishable and Renewable DNA Hybridization Biosensors
(1998-09-01)
Routine applications of DNA hybridization biosensors are often restricted by the need for regenerating the single-stranded (ss) probe for subsequent reuse. This note reports on a viable alternative to prolonged thermal or ...
Detection of post-F1 fish hybrids in broodstock using molecular markers: Approaches for genetic management in aquaculture
(2013-05-01)
Herein, we have developed molecular markers for nuclear genes to use in multiplex-PCR and PCR-RFLP, with the goal of characterising hybrid lines derived from crosses between pintado Pseudoplatystoma corruscans and cachara ...
Identification of hybrids between Neotropical fish Leporinus macrocephalus and Leporinus elongatus by PCR-RFLP and multiplex-PCR: Tools for genetic monitoring in aquaculture
(Elsevier B.V., 2010-01-07)
Interspecific fish hybrids can represent a serious threat to the aquatic environment. Consequently, genetic monitoring of organisms that are produced by interspecific hybridization aims at the application of methodologies ...
A radiation hybrid map of bovine X Chromosome (BTAX)
(2002-05-07)
We present a comprehensive radiation hybrid map of the bovine X chromosome (Chr) containing 20 new markers, including both microsatellites and expressed genes. This study was conducted with a 5000-rad whole genome RH cell ...
Indicator-free electrochemical DNA hybridization biosensor
(Elsevier B.V., 1998-11-30)
A new electrochemical hybridization biosensor protocol without an external indicator is described. The biosensor format involves the immobilization of inosine-substituted (guanine-free) probe onto the carbon paste transducer, ...
Bacterial cellulose-silica organic-inorganic hybrids
(Springer, 2008-06-01)
Bacterial cellulose (BC) hydrated membranes present nanometric reticulated structure that can be used as a template in the preparation of new organic-inorganic hybrids. BC-silica hybrids were prepared from BC membranes and ...
Molecular evidence of ribosomal DNA (rDNA) amplification of a minichromosome derived from Drosophila arizonae in D. mulleri-D. arizonae hybrid males
(1996-03-01)
We present data supporting cytogenetic observations on nucleolar dominance in hybrids between Drosophila arizonae and D. mulleri. Our approach was to compare the rDNA restriction patterns between the parental species and ...