Authors: M.A. Latif, M.Y. Omar, S.G. Tan, S.S. Siraj, M.E. Ali and M.Y. Rafii
Contamination of insect DNA for RAPD-PCR analysis can be a problem because many primers are non-specific and DNA from parasites or gut contents may be simultaneously extracted along with that of the insect. We measured the quantity of food ingested and assimilated by two sympatric populations of brown planthopper (BPH), Nilapa.. Read More»
Authors: M.H.S. Nascimento, M.S. Almeida, M.N.S. Veira, D. Limeira Filho, R.C. Lima, M.C. Barros and E.C. Fraga
DNA barcoding is a useful complementary tool for use in traditional taxonomic studies due to its ability to detect cryptic species, and may be particularly efficient in the identification of fish species. The fish fauna of the Itapecuru River represents an important fishery resource in the Brazilian State of Maranhão, a.. Read More»
Authors: Z.Y. Tao, C.H. Zhu, Z.H. Shi, C. Song, W.J. Xu, W.T. Song, J.M. Zou and A.J. Qin
Nucleotide-binding oligomerization domain-containing protein-1 (NOD1) is a cytoplasmic pattern recognition receptor (PRR) and a key member of the NOD-like receptor (NLR) family. It has been reported that NLRs recognize a variety of microbial infections to induce the host innate immune response via modulation of NF-κB signaling. However, no reports o.. Read More»
Authors: Z.H. Huang and F.Y. Tu
The control region is considered to be one of the most variable parts of animal mitochondrial DNA (mtDNA). We compared the mtDNA control region from 37 species representing 14 genera and 4 subfamilies of Ranidae, to analyze the evolution of the control region and to determine their phylogenetic relationship. All the Ranidae sp.. Read More»
Authors: Y.Y. Cao and Z.B. Li
Fenneropenaeus penicillatus is a widely distributed economically and ecologically important shrimp species, which is endangered in China. Sequence analysis of 16s rRNA and control region (CR) fragments from mitochondrial DNA was conducted to obtain information on genetic diversity and population structure. Individuals from 12 .. Read More»
Authors: X.-G. Li, J. Wang and Z.-Y. Yu
Anthocyanidin synthase (ANS), a 2-oxoglutarate (2OG) and Fe(II)-dependent oxygenase, catalyzes the penultimate step in anthocyanin biosynthesis, from leucoanthocyanidins to anthocyanidins, the first colored compound in the anthocyanin pathway. In this study, a full-length, 1427-bp long cDNA named RnANS1, which is homologous to the anthocyanidin synthase g.. Read More»
Authors: L.B. Stoll, F.C.A. Cremonesi, L.T.A. Pires, T.D. Zucchi andT.M.A.D. Zucchi4,
As a contribution towards detecting the genetic effects of low doses of genotoxic physical agents, this paper deals with the consequences of low-dose X-rays in the Aspergillus nidulans genome. The irradiation doses studied were those commonly used in dental clinics (1-5 cGy). Even very low doses promoted increased mitotic crossing-over frequencies in dipl.. Read More»
Authors: L. Moreno-RamÃ?Ârez, D. GonzÃ?¡lez-Mendoza, C. Cecena-Duran and O. Grimaldo-Juarez
One of the main limitations in intensive crop production in Northwestern Mexico is the dependence on the use of phosphate fertilizer. In this study, we isolated indigenous microorganisms with phosphate solubilization capacities from mesquite (Prosopis glandulosa) present in the Mexicali valley. In total, 4 bacteria were isolated from the rhizosphere of me.. Read More»
Authors: F. Gimenes, K.I. Takeda, A. Fiorini, F.S. Gouveia and M.A. Fernandez
Intrinsically bent DNA is an alternative conformation of the DNA molecule caused by the presence of dA/dT tracts, 2 to 6 bp long, in a helical turn phase DNA or with multiple intervals of 10 to 11 bp. Other than flexibility, intrinsic bending sites induce DNA curvature in particular chromosome regions such as replication origi.. Read More»
Authors: G.S.C. Buso, M.R. Paiva, A.C. Torres, F.V. Resende, M.A. Ferreira, J.A. Buso and A.N. Dusi
The garlic cultivars grown in Brazil evolved from somatic mutations and clone selection by breeding programs and by the introduction of germplasm from other countries. Morphological characters have been used to differentiate these cultivars. Two hundred and six random amplified polymorphic DNA markers were utilized for a diver.. Read More»