Authors: R.F. Rocha, E.V. Menezes, A.R.E.O. Xavier, V.A. Royo, D.A. Oliveira, A.F.M. J�ºnior, E.S. Dias, A.C.V.M.R. Lima and E.M. Michalsky
Molecular studies of the evolutionary relationships among Leishmania species suggest the presence of high genetic variation within this genus, which has a direct effect on public health in many countries. The coexistence of species in a particular region can result in different leishmaniasis clinical forms and treatment respon.. Read More»
Authors: T.C.S. Barbosa, S.T. Sibov, M.P.C. Telles and T.N. Soares
Palicourea coriacea (Rubiaceae) is a herbaceous, perennial species typical of the Cerrado; it is popularly known as “douradinha”, because of its yellow flowers. It is utilized in popular medicine, mainly for the treatment of renal diseases. We used RAPD markers to evaluate the genetic structure of nine natural popu.. Read More»
Authors: Q. Bano, M. Hassan, S.B. Hussain, M. Javed, M.A. Zulfiqar, M. Younas, M. Baber, M. Zubair and S.M. Hussain
This study aimed to identify high-yielding peanut genotypes with resistance to leaf spot disease. The experimentsincluded material from fourteen local and four exotic peanut genotypes that showed highly significant differences among morphological and disease severity parameters in all the genotypes which, in turn, suggested diversity genotypes. Disease se.. Read More»
Authors: N.M. Duc, V.D. Duy, B.T.T. Xuan, B.V. Thang, N.T.H. Ha and N.M. Tam
Dipterocarpus costatus is an endangered species restricted to the lowland forests of southern Vietnam. Habitat loss and over-exploitation of D. costatus wood are the major threats to this species. We investigated the level of genetic variability within and among populations of D. costatus in order to provide guidelines for the.. Read More»
Authors: R.C. Borges, F.M.G. Santos, M.C.C. Maia, P.S.C. Lima and S.E.S. Valente
Sapucaia is a tree species originating from the Brazilian Amazon and is widely distributed in Brazil, especially in the mid-north region (Piauí and Maranhão states). Its seeds are rich in calories and proteins, and possess great potential for commercialization. Little is known about the genetic variability in the germplasm of most Lecythis s.. Read More»
Authors: R.S.N de Lima, R.F. Daher, L.S.A. Gon�§alves, D.A. Rossi, A.T. do Amaral J�ºnior, M.G. Pereira and F.J.S. L�©do
Considering the expected genetic variability of elephant grass (Pennisetum purpureum), due to its cultivation in different continents, we characterized and estimated the genetic divergences between 46 accessions of elephant grass with different edaphoclimatic adaptations, using RAPD and ISSR markers. We evaluated, comparativel.. Read More»
Authors: A.M. Olivatti, T.A. Boni, N.J. Silva-J�ºnior, L.V. Resende, F.O. Gouveia and M.P.C. Telles
Leporinus friderici, native to the Amazon Basin and popularly known as “piau-três-pintas”, has great ecological and economic importance; it is widely fished and consumed throughout much of tropical South America. Knowledge of the genetic diversity of this native species is important to support management and .. Read More»
Authors: E.A. Marucci, G.F.D. Zafalon, A.C.G. Jardim, L.H.T. Yamasaki,C. Bittar, P. Rahal and J.M. Machado
The results obtained through biological research usually need to be analyzed using computational tools, since manual analysis becomes unfeasible due to the complexity and size of these results. For instance, the study of quasispecies frequently demands the analysis of several, very lengthy sequences of nucleotides and amino ac.. Read More»
Authors: A.N.R. Soares, M.F. Vit�³ria, A.L.S. Nascimento, A.S. Ledo, A.R.C. Rabbani and A.V.C. Silva
Mangaba (Hancornia speciosa Gomes) is found in areas of coastal tablelands in the Brazilian Northeast and Cerrado regions. This species has been subjected to habitat fragmentation that is mainly due to human activity, and requires conservation strategies. The aim of this study was to analyze the structure and inter- and intrapopulation genetic diversity o.. Read More»
Authors: A.L.D. Oliveira, D. Da Silva, E.M. Zanotti-Magalhaes,A.Z. Abdel-Hamid, J.T. Ribeiro-Paes
Schistosomiasis remains one of the most prevalent parasitic infections and has significant economic and public health consequences in many developing countries. Economic development and improvement in standard of living in these countries are dependent on the elimination of this odious disease. For the control of Schistosomias.. Read More»