
Authors: C.D. Marinho, F.J.O. Martins, S.C.S. Amaral, A.T. Amaral J�ºnior, L.S.A. Gon�§alves and M.P. de Mello
During the last 20 years, the national production of grains has increased 156.1%; productivity increased 93.8% and there has been an increase of 29.1% in cultivated area. Currently, agribusiness is responsible for 40% of Brazilian exports. Nevertheless, there is little quantitative information on the main plant species of econ.. Read More»
Authors: A.C.F. Santos, R.P. Rezende, M. Brendel, S.S. Souza, A.C.S. Gon�§alves and J.C.T. Dias
We investigated the biodegradability of oil in mangrove sediment from Camamu Bay and measured its effect on the bacterial community. Microcosms of mangrove sediment were contaminated with 0.1, 0.5, 1, 2, and 5% (w/v) oil, and the microbial activity was compared to that in uncontaminated sediment. The evolution of CO2 and gas c.. Read More»
Authors: G.M.P. de Faria, C.F.B. Sanchez, L.P. de Carvalho, M. da Silva Oliveira and C.D. Cruz
Brazil is among the five largest producers of cotton in the world, cultivating the species Gossypium hirsutum L. r. latifolium Hutch. The cultivars should have good fiber quality as well as yield. Genetic improvement of fiber traits requires the study of the genetic structure of the populations under improvement, leading to th.. Read More»
Authors: R.R. Zhu, Y.K. Gao, L.J. Xu and Q.X. Zhang
Species of the genus Aquilegia are exceptionally diverse in their floral morphology and color, commonly known as columbine. They are widely planted ornamentals and are highly attractive for hummingbirds. However, little is known about their genetic diversity. We examined the genetic diversity of the species and cultivars using.. Read More»
Authors: W.G. Xie, X.F. Lu, X.Q. Zhang, L.K. Huang and L. Cheng
Orchardgrass is a highly variable, perennial forage grass that is cultivated throughout temperate and subtropical regions of the world. Despite its economic importance, the genetic relationship and distance among and within cultivars are largely unknown but would be of great interest for breeding programs. We investigated the .. Read More»
Authors: S.-Y. Zhao, S.-G. Sun, Y.-H. Guo, J.-M. Chen and Q.-F. Wang
Solidago canadensis, a clonal herb originally from North America (common name: Canada goldenrod), is an invasive species in many countries. We developed microsatellite primers for this species. Eleven polymorphic loci were generated and primers were designed. Polymorphism of these 11 loci was assessed in 35 plants from two populations (Wuhan and Shanghai).. Read More»
Authors: L.L.L. da Silva, L. Giuliano-Caetano and A.L. Dias
Bryconamericus comprises 56 species distributed into three groups, on the basis of the position and shape of the maxillary teeth: B. exodon, B. microcephalus and B. iheringii groups. Few cytogenetic data are available for this genus, but the diploid number of 52 chromosomes is quite common, although the karyotypic variability .. Read More»
Authors: C.E.F. Domingues, C.M.C. Olivera, B.V. Oliveira, F.S. Juste,C.R.F. Andrade4, C.M. Giacheti, D. Moretti-Ferreira and D. Drayna
Although twin, adoption, and family studies demonstrate that genetic factors are involved in the origins of stuttering, the mode of transmission of the disorder in families is not well defined and stuttering is considered a genetically complex trait. We performed a genome-wide linkage scan in a group of 43 Brazilian families, each containing multiple case.. Read More»
Authors: X.F. Wang, H.Y. Zheng, W.H. Zheng, C.Q. Ao, H.Y. Jin, L.H. Zhao, N. Li and L.R. Jia
Camellia is an economically important ornamental plant that has many uses, such as in beverages, foods and medicines. We examined 15 Camellia cultivars in Wenzhou, China, using RAPD markers and measurements of three traits (petal color, flower diameter, blooming period). PCR amplification with 15 random primers produced 1935 b.. Read More»
Authors: Y. Wang, F. Wang, Y.H. Shi, Z.F. Gu, A.M. Wang
The abalone, Haliotis diversicolor, is one of the most important mariculture species in southern China. We developed 60 new polymorphic microsatellite markers for H. diversicolor and characterized them in 30 individuals from a cultured population in Sanya, China. All 60 markers were found to be polymorphic. The number of allel.. Read More»