Authors: S.R. N�³brega, A.L.F. Coelho, C.F. Verola, I.R. Costa, R. Vila�§a, F.J.F. Luz and W.F. Ara�ºjo
Studies addressing chromosome variations have elucidated many points regarding the taxonomy of the Orchidaceae. Epidendrum L. besides being one the largest orchid genera, present remarkable morphological, and inter- and intraspecific chromosome variations. Thus, based on a previous report on flower color variation in individua.. Read More»
Authors: C.F.B. Sanch�©z, R.S. Alves, A.d.P. Garcia, P.E. Teodoro, L.A. Peixoto, L.A. Silva, L.L. Bhering and M.D.V. Resende
The aim of this study was to evaluate repeated measures over the years to estimate repeatability coefficient and the number of the optimum measure to select superior genotypes in Annona muricata L. The fruit production was evaluated over 16 years in 71 genotypes without an experimental design. The estimation of variance compon.. Read More»
Authors: M. Wahid, S. Prasarnpun and N. Yimtragool
Cadmium (Cd) is produced mainly as a by-product of zinc mining. In Thailand, the largest zinc mine is located in the Mae Sot district, Tak Province. Samples of Monopterus albus were collected from paddy fields in 4 sites, three downstream and one upstream from the zinc mine. The upstream site was considered to be uncontaminate.. Read More»
Authors: S.J. Ma, K.J. Sa, T.K. Hong and J.K. Lee
In this study, 21 simple sequence repeat (SSR) markers were used to evaluate the genetic diversity and population structure among 77 Perilla accessions from high-latitude and middle-latitude areas of China. Ninety-five alleles were identified with an average of 4.52 alleles per locus. The average polymorphic information conten.. Read More»
Authors: A.P. F�¡vero, A.P.S. Pe�±aloza, C.R. Lopes and J.F.M. Valls
Arachis kuhlmannii occurs in Mato Grosso and Mato Grosso do Sul States, Brazil. Its area of occurrence partially overlaps with that of other species in the Arachis section. Because of their morphological similarities, these species are often mistaken one for another. This study aimed the correct classification of available acc.. Read More»
Authors: S.P. Silva, L.N.P.P. Silva, E.D.L. Rodrigues, J.F. Cardoso, F.N. Tavares, W.M. Souza, C.M.P. Santos, F.M.S. Martins, I.S. Jesus, T.C. Brito, T.P.C. Moura, M.R.T. Nunes, L.M.N. Casseb, E. Silva Filho and A.R. Casseb
With the objective of characterizing Canine parvovirus (CPV) from some suspected fecal samples of dogs collected from the Veterinarian Hospital in Belém city, five positive samples were found by PCR assay and an update molecular characterization was provided of the CPV-2 circulation in Belém. Through sequencing o.. Read More»
Authors: P.A. Barroso, M.M. R�ªgo, E.R. R�ªgo and K.T.C. Ferreira
The objective of this study was to estimate the genetic effects on in vitro germination and development of chili peppers. For this, four genotypes (UFPB-132, -134, -137, and -390) were used as parents. They were crossed in a complete diallel scheme. The parents (4) and hybrid (12) seeds were germinated in glass bottles contain.. Read More»
Authors: H.M. Lopes, C.S. Bastos, L.S. Boiteux, J. Foresti and F.A. Suinaga
Helicoverpa armigera is the most significant pest of agriculture in Asia, Europe, Africa, and Australasia, causing damage to crops greater than US$2 billion annually and until 2013 it was not detected in Brazil. Helicoverpa zea is restricted to the American continent and is important to corn and a secondary pest of cotton and .. Read More»
Authors: Q.J. Xu, Y.L. Wang, Z.X. Wei, H.J. Yuan, X.Q. Zeng and N. Tashi
Tibetan barley is a staple food for the natives of Qinghai-Tibet Plateau. Drought causes a reduction in barley production. In this study, the full-length cDNA of a gene encoding a syntaxin-associated protein was cloned from the leaves of a drought-resistant variety of barley, “Himalaya 10”; its expression was evalu.. Read More»
Authors: N.P. Oliveira, M.S.P. Oliveira, L.C. Davide and S. Kalisz
We assessed the level and distribution of genetic diversity in three species of the economically important palm genus Astrocaryum located in Pará State, in northern Brazil. Samples were collected in three municipalities for Astrocaryum aculeatum: Belterra, Santarém, and Terra Santa; and in two municipalities for .. Read More»