Authors: R. Stolf-Moreira, M.E. Medri, N. Neumaier, N.G. Lemos, J.A. Pimenta, S. Tobita, R.L. Brogin, F.C. Marcelino-Guimar�£es, M.C.N. Oliveira, J.R.B. Farias, R.V. Abdelnoor and A.L. Nepomuceno
Soybean genotypes MG/BR46 (Conquista) and BR16, drought-tolerant and -sensitive, respectively, were compared in terms of morphophysiological and gene-expression responses to water stress during two stages of development. Gene-expression analysis showed differential responses in Gmdreb1a and Gmpip1b mRNA expression within 30 da.. Read More»
Authors: A.M. Polizel, M.E. Medri, K. Nakashima, N. Yamanaka, J.R.B. Farias, M.C.N. de Oliveira, S.R.R. Marin, R.V. Abdelnoor, F.C. Marcelino-Guimar�£es, R. Fuganti, F.A. Rodrigues, R. Stolf-Moreira, M.A. Beneventi, A.A.P. Rolla, N. Neumaier, K. Yamaguchi-Shinozaki, J.F.C. Carvalho and A.L. Nepomuceno
We evaluated the molecular, anatomical and physiological properties of a soybean line transformed to improve drought tolerance with an rd29A:AtDREB1A construct. This construct expressed dehydration- responsive element binding protein DREB1A from the stress-inducible rd29A promoter. The greenhouse growth test included four rand.. Read More»
Authors: P.E. Teodoro, F.E. Torres and A.M. Corr�ªa
The objectives of this study were to use mixed models to confirm the presence of genetic variability in 16 soybean genotypes, to compare clusters generated by artificial neural networks (ANNs) with those created by the Ward modified location model (MLM) technique, and to indicate parental combinations that hold promise for obtaining superior segregating p.. Read More»
Authors: D.A.V. Cantelli, O.T. Hamawaki, M.R. Rocha, A.P.O. Nogueira, R.L. Hamawaki, L.B. Sousa, C.D.L. Hamawaki
This study aimed to evaluate the clustering pattern consistency of soybean (Glycine max) lines, using seven different clustering methods. Our aim was to evaluate the best method for the identification of promising genotypes to obtain segregating populations. We used 51 generations F5 and F6 soybean lines originating from diffe.. Read More»
Authors: M.B. Oliveira, E.S.N. Vieira and I. Schuster
The narrow genetic base of soybean makes cultivar characterization based on morphological descriptors difficult; this characterization is mainly done for registration and protection. Correct characterization of cultivars could be achieved through molecular markers, since the frequencies of each allele in the population are kno.. Read More»
Authors: R. Stolf-Moreira, M.E. Medri, N. Neumaier, N.G. Lemos, R.L. Brogin, F.C. Marcelino, M.C.N. de Oliveira, J.R.B. Farias, R.V. Abdelnoor and A.L. Nepomuceno
We determined the expression levels of DREB transcription factor (Gmdreb1) and of the genes Gmgols, Gmpip1b, Gmereb, and Gmdefensin in drought-tolerant (MG/BR46-Conquista) and drought-sensitive (BR16) genotypes of soybean, during drought. The trial was carried out in a controlled-environment chamber, set up to provide drought .. Read More»
Authors: G.R. Vianna, N.B. Cunha, A.M. Murad and E.L. Rech
Plants present various advantages for the production of biomolecules, including low risk of contamination with prions, viruses and other pathogens, scalability, low production costs, and available agronomical systems. Plants are also versatile vehicles for the production of recombinant molecules because they allow protein expr.. Read More»
Authors: M.B. Marconato, E.M. Pereira, F.M. Silva, E.H. Bizari, J.B. Pinheiro, A.O. Mauro and S.H. Un�ªda-Trevisoli
Owing to the narrow genetic basis of soybean (Glycine max), the incorporation of new sources of germplasm is indispensable when searching for alleles that contribute to a greater diversity of varieties. The alternative is plant introduction, which may increase genetic variability within breeding programs. Multivariate techniqu.. Read More»
Authors: K.B. Silva, A.T. Bruzi, A.M. Zuffo, E.V. Zambiazzi, I.O. Soares, P.M. de Rezende, V. Fronza, G.D.L. Vilela, F.B.S. Botelho, C.M. Teixeira and M.A. de O. Coelho
The aim of this study was to verify the adaptability and stability of soybean cultivars with regards to yield and oil content. Data of soybean yield and oil content were used from experiments set up in six environments in the 2011/12 and 2012/13 crop seasons in the municipalities of Patos de Minas, Uberaba, Lavras, and S&atild.. Read More»
Authors: I.O. Soares, P.M. Rezende, A.T. Bruzi, E.V. Zambiazzi, A.M. Zuffo, K.B. Silva and R. Gwinner
Soybean is one of the main sources of foreign exchange credits for Brazil in the agricultural sector. There is increasing interest in growing this leguminous crop, especially in the southern region of Minas Gerais, due to its importance as an alternative for crop rotation with maize. In this respect, the study of the adaptability of new cultivars to the r.. Read More»