
Authors: J. Han, W.Y. Wang, X.P. Leng, L. Guo, M.L. Yu, W.B. Jiang and R.J. Ma
One of the most important uses of DNA markers is cultivar identification. However, no DNA fingerprint analysis strategy is available for making DNA markers helpful in practical plant cultivar identification, especially for the identification of a large number of cultivars. We developed a manual cultivar identification diagram .. Read More»
Authors: C.G. Oliveira, R.A. Martinez, F.A. Gaiotto
DNA extraction protocols are as varied as DNA sources. When it comes to endangered species, it is especially important to pay attention to all details that ensure the completion of the study goals and effectiveness in attaining useful data for conservation. Chaetomys subspinosus (Rodentia: Erethizontidae) is a secretive arbore.. Read More»
Authors: L.K. Oliveira1,3, L.C. Melo2, C. Brondani3, M.J.D. Peloso2 and R.P.V. Brondani3
The objectives of the present study were to monitor the effect of backcrossing through microsatellite markers and to compare different marker assisted selection strategies. Four populations were developed using donor parents resistant to the bean golden mosaic virus and, for all crosses, only individuals resistant to the bean golden mosaic virus were back.. Read More»
Authors: C.A. Nogueira, N.B. Stafuzza,T.P. Ribeiro, A.D.L. Prado, I.P.P. Meneze, N. Peixoto, P.J. Gon�§alves,L.M. Almeida
Hancornia speciosa, popularly known as mangabeira, is a fruit tree native to the Brazilian Cerrado that shows great economic potential, due to its multiple uses. Intraspecific classification of this species is difficult because it shows high morphological diversity. An early study of the species reported that there are six bot.. Read More»
Authors: G.C. Santâ��Ana, J.L. Ferreira, H.S. Rocha, A. Bor�©m, M. Pasqual and G.M.A. Can�§ado
Identification and knowledge concerning genetic diversity are fundamental for efficient management and use of grapevine germplasm. Recently, new types of molecular markers have been developed, such as retrotransposon-based markers. Because of their multilocus pattern, retrotransposon-based markers might be able to differentiat.. Read More»
Authors: G.A. Carvalho-Zilse, M.F.F. Costa-Pinto, C.G. Nunes-Silva, W.E. Kerr
Many factors have contributed to reductions in wild populations of stingless bees, such as: deforestation, displacement and destruction of nests by honey gatherers, as well as use of insecticides and other agrochemicals. All of these can potentially affect the populational structure of native species. We analyzed genetic varia.. Read More»
Authors: M. Balestre, R.G. Von Pinho, J.C. Souza and J.C. Machado
The present study examined the importance of mean (m+a’ and d) components in the performance of single-cross hybrids for the formation of new populations and determined the contribution of the mixed model (best linear unbiased predictor of random effects, BLUP) method associated with molecular markers for the choice of crosses to obtain interpopulat.. Read More»
Authors: R.C.G. da Silva J.B.S. Ferraz F.V. Meirelles J.P. Eler J.C.C. Balieiro D.C. Cucco E.C. Mattos F.M. Rezende S.L. Silva
Given the important role of leptin in metabolism, we looked for a possible association of leptin and leptin receptor polymorphisms with carcass and growth traits in Nellore cattle. We examined associations of leptin and leptin receptor SNPs with ultrasound carcass (longissimus dorsi muscle area (ribeye area), backfat thickness and rump fat thickness and grow.. Read More»
Authors: L.F.C. Ribeiro D.B. Zanatta J.P. Bravo R.M.C. Brancalh�£o M.A. Fernandez
The silkworm Bombyx mori L. is particularly susceptible to virus diseases, especially B. mori nucleopolyhedrovirus (BmNPV). Disease resistance, along with high productivity, are important selection criteria for developing commercial hybrids of B. mori. We used bioassays and molecular markers linked to susceptibility/resistance.. Read More»
Authors: F.B. Britto, D.S.F. Mendes, M. Ogawa, I.H.A. Cintra and F.M. Diniz
We used single primer-based DNA markers to assess genetic variability of the mangrove crab, Ucides cordatus, collected from four different localities from Pará to Santa Catarina States in Brazil (almost 5000 km distant). Five primers were chosen based on the consistency of the amplified bands and the polymorphism of eac.. Read More»