
Authors: L.-H. Zhou, X.-Y. Wang and J.-J. Lei
The beet armyworm, Spodoptera exigua (Lepidoptera: Noctuidae), is an economically important pest that causes major losses in some main crop-producing areas of China. To control this pest effectively, it is necessary to investigate its population genetic diversity and genetic structure around the Bohai Gulf area of China. In this study, we used two mitocho.. Read More»
Authors: S. Ahmad, K. Mahmood, M. Hanif, W. Nazeer, W. Malik, A. Qayyum, K. Hanif, A. Mahmood and N. Islam
Cotton is under the constant threat of leaf curl virus, which is a major constraint for successful production of cotton in the Pakistan. A total of 3338 cotton genotypes belonging to different research stations were screened, but none were found to be resistant against the Burewala strain of cotton leaf curl virus (CLCuV). We .. Read More»
Authors: Y. Li, Y.C. Wei, Z.Q. Li, S.H. Wang and L. Chang
Progeny performances, variations and combining abilities for growth traits were evaluated in a factorial mating design of Eucommia ulmoides. Three marker systems, sequence-related amplified polymorphism, amplified fragment length polymorphism, and inter-simple sequence repeat, were u.. Read More»
Authors: E.A. Santos, M.M. Souza, A.P. Viana, A.A.F. Almeida, J.C.O. Freitas and P.R. Lawinscky
We estimated genetic parameters through multivariate analysis of two species of Passiflora and their hybrids, considered of ornamental potential, based on the morphological characteristics: flower diameter, corona diameter, corona filament size, flower peduncle length, petal length and width, sepal length and width, internode .. Read More»
Authors: L.C. Valentini, C.A. Mangolin, S.A.O. Collet and M.F.P.S. Machado
We used native polyacrylamide gel electrophoresis to identify polymorphism levels in a- and b-esterase loci from leaf tissues of Brazilian soybean cultivars for the analysis of population genetic diversity and structure, and to investigate relationships between conventional and genetically modified cultivars. The cultivars inc.. Read More»
Authors: R. Domingues, M.A. Machado, R.C. Forzza, T.D. Melo, S. Wohlres-Viana and L.F. Viccini
Pitcairnia albiflos is a Bromeliaceae species endemic to Brazil that has been included as data-deficient in the extinction risk list of Brazilian flora. We analyzed genetic variability in P. albiflos populations using RAPD markers to investigate population structure and reproductive mechanisms and also to evaluate the actual e.. Read More»
Authors: M. Vivas, S.F. Silveira, A.P. Viana, A.T. Amaral Jr., D.L. Cardoso and M.G. Pereira
Diallel crossing methods provide information regarding the performance of genitors between themselves and their hybrid combinations. However, with a large number of parents, the number of hybrid combinations that can be obtained and evaluated become limited. One option regarding the number of parents involved is the adoption o.. Read More»
Authors: A.P.C.G. Berilli, M.G. Pereira, L.S.A. Gon�§alves, K.S. da Cunha, H.C.C. Ramos, G.A. Souza Filho and A.T. do Amaral J�ºnior
We examined the effect of incorporation of molecular markers on variability between and within populations in order to maximize heterotic effects and longevity of a maize reciprocal recurrent selection program. Molecular variability was quantified by inter-simple sequence repeat (ISSR) markers between and within the maize popu.. Read More»
Authors: T. Chen, Z. Chen, G.H. Ma, B.H. Du, B. Shen, Y.Q. Ding and K. Xu
Here, 248 endophytic bacterial strains were isolated to assess the distribution and population diversity of endophytic bacteria in ginger plants. A total of 10.4 x 104 to 20.2 x 104 CFU/g fresh weight endophytic bacteria of different growth stages were isolated. Maximum bacterium numbers were obtained at the seedling stage. A .. Read More»
Authors: R.B. Miz, L.O. Tacuati�¡, F.W. Cidade, A.P. de Souza, F. Bered, L. Eggers and T.T. de Souza-Chies
Recent phylogenetic studies on Sisyrinchium strongly suggest that species classified in section Hydastylus and section Viperella belong to a single group of plants in recent adaptive radiation (Clade IV). These species neither present clear morphological differentiation among them nor show clear identification using DNA barcode markers. Thus, the main goa.. Read More»