
Authors: C.G. Litholdo J�ºnior, E.V. Gomes, M. Lobo J�ºnior, L.C.B. Nasser and S. Petrofeza
The genetic variability of 40 Sclerotinia sclerotiorum isolates from various fields widely distributed throughout Brazil and different host crops was analyzed using RAPD markers and mycelial compatibility groupings (MCGs). The isolates were characterized using 16 random primers of the OPERON series, which produced 121 DNA frag.. Read More»
Authors: V. Polzonetti, V. Passini and N. Lucarini
An association between favism (a hemolytic reaction to consumption of fava beans), glucose-6-phosphate dehydrogenase deficiency (G6PD-) and acid phosphatase locus 1 (ACP1) phenotypes has been reported; the frequency of carriers of the pa and pc ACP1 alleles was found to be significantly higher in G6PD- individuals showing favi.. Read More»
Authors: H. Rahman, S. Pekic, V. Lazic-Jancic, S.A. Quarrie, S.M.A. Shah, A. Pervez and M.M. Shah
Drought tolerance is one of the most important but complex traits of crops. We looked for quantitative trait loci (QTLs) that affect drought tolerance in maize. Two maize inbreds and their advanced lines were evaluated for drought-related traits. A genetic linkage map developed using RFLP markers was used to identify QTLs asso.. Read More»
Authors: B.Z. Feng, P.Q. Li, L. Fu, B.B. Sun and X.G. Zhang
Phytophthora capsici is an aggressive plant pathogen that affects solanaceous and cucurbitaceous hosts. Necrosis-inducing Phytophthora proteins (NPPs) are a group of secreted toxins found particularly in oomycetes. Several NPPs from Phytophthora species trigger plant cell death and activate host defense gene expression. We iso.. Read More»
Authors: F.C. Silva, P.G.S. Melo, H.S. Pereira and L.C. Melo
The maintenance of the light color of the grains of carioca beans is a requirement for the development of new cultivars of common beans because it enables the storage of grains for long periods so that they may be traded at a proper opportunity. Crosses of cultivar BRSMG Madrepérola, which presents slow grain darkening,.. Read More»
Authors: M.M. Cavallari, M.V.B.M. Siqueira, T.M. Val, J.C. Pavanelli, M. Monteiro, C. Grando, J.B. Pinheiro, M.I. Zucchi and M.A. Gimenes
Purified genomic DNA can be difficult to obtain from some plant species because of the presence of impurities such as polysaccharides, which are often co-extracted with DNA. In this study, we developed a fast, simple, and low-cost protocol for extracting DNA from plants containing high levels of secondary metabolites. This pro.. Read More»
Authors: E.J. Oliveira, J.P.X. Freitas and O.N. Jesus
This study analyzed the genotype x environment interaction (GE) for the juice productivity (JuProd) of 12 yellow passion fruit varieties (Passiflora edulis Sims. f. flavicarpa Deg.) using additive main effects and multiplicative interaction (AMMI) model and auxiliary parameters. The experiments were conducted.. Read More»
Authors: J. Lin, X.C. Wang, Y.H. Chang and J.G. Fang
Accurate and reliable cultivar identification of crop species is essential to guarantee plant material identity for purposes of registration, cultivar protection and production. To facilitate identification of plant cultivars, we developed a novel strategy for efficient recording of DNA molecular fingerprints in genotyped plan.. Read More»
Authors: N.C.S. Crubelati-Mulati, C.A. Scapim, F.A. Albuquerque, A.T. Amaral Junior, M. Vivas and M.A. Rodovalho
The fall armyworm, Spodoptera frugiperda, is the pest that causes the greatest economic losses for both common corn and popcorn crops, and the use of resistant plant genotypes is an important tool for integrated pest management. The goal of the present study was to evaluate the damage caused by S. frugiperda on single-cross popcorn hybri.. Read More»
Authors: E. Silva Filho, M.H. Silva, J.E.G. Campelo, M.R. DeRosia,L.M.L. Pinheiro and M.J.O. Almeida
Curraleiro Pé-Duro is a rustic bovine taurine breed found in Northeast of Brazil; this breed has decreased its production potentially in order to adapt to the region environment conditions. Consequently, it is under risk of extinction and is maintained at a preservation center in Piauí State, Brazil, as a source .. Read More»