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Molecular characterization of Aspergillus flavus and aflatoxin contamination of wheat grains from Saudi Arabia
Authors: A.S. Al-Wadai, M.R. Al-Othman, M.A. Mahmoud and A.R.M. Abd El-Aziz
Twelve species belonging to six fungal genera were found to be associated with wheat (Triticum aestivum L.) grain samples collected from three main regions in Saudi Arabia. The most common genera (average frequency) were Aspergillus (14.3%), Fusarium (29.1%), Penicillium (9.3%), and Alternaria (8.2%). Nineteen isolates of Aspergillus flavus were screened .. Read More»
- Genet. Mol. Res. 12(3):
- 2013.September.3.10
- DOI:
- 10.4238/2013.September.3.10
Lignocellulolytic enzymes and bacteria associated with the digestive tracts of Stenochironomus (Diptera: Chironomidae) larvae
Authors: R. Koroiva, C.W.O. Souza, D. Toyama, F. Henrique-Silva and A.A. Fonseca-Gessner
We analyzed the digestive activity of the enzymes that digest cellulose and hemicellulose and the bacterial community that is capable of hydrolyzing wood compounds in the digestive tracts of Stenochironomus (Diptera: Chironomidae) larvae, which are miners of decomposing submerged tree and bush branches. Based on quantification of reducing sugars, these la.. Read More»
- Genet. Mol. Res. 12(3):
- 2013.April.2.2
- DOI:
- 10.4238/2013.April.2.2
Gene expression patterns of invertase gene families and modulation of the inhibitor gene in tomato sucrose metabolism
Authors: Y.L. Zhang, A.H. Zhang and J. Jiang
Patterns of gene expression in the different types of sucrose metabolism in the tomato are highly variable and heritable. This genetic variation causes considerable functional differences. We examined the patterns of expression of invertase (Inv) gene families and an invertase inhibitor (INH) gene involved in elongating roots, hypocotyls, and fruit of the.. Read More»
- Genet. Mol. Res. 12(3):
- 2013.January.24.1
- DOI:
- 10.4238/2013.January.24.1
Reply to commentary by G. Sikri and S. Dua on the article â??Correlation between single nucleotide polymorphisms in hypoxia-related genes and susceptibility to acute high-altitude pulmonary edemaâ? published in Genetics and Molecular Research 14 (3): 11562-11572 to the letter published in Genet. Mol. Res. 14 (4): 15904-15905
Authors: L.J. Wu
The object in this study was a Han Chinese population in Lhasa, with 3658 m in altitude from Chengdu, which has 505 m in altitude by air. Within 24 to 48 h before the subjects arrived in the plateau, they completed a basic situation questionnaire, under the guidance of medical staff. Within 24 to 48 h after they reached the plateau, the subjects completed.. Read More»
- Genet. Mol. Res. 15(1):
- gmr.15016155
- DOI:
- 10.4238/gmr.15016155
Association between the TRAIL single nucleotide polymorphism rs1131580 and type 2 diabetes mellitus in a Han Chinese population
Authors: M.Y. Yu, P.Q. Zhao, X.H. Yan, B. Liu, Q.Q. Zhang, R. Wang, C.H. Ma, X.H. Liang, F.L. Zhu and L.F. Gao
Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) is expressed in different tissues and cells, including the pancreas and lymphocytes, and it can selectively induce apoptosis in tumor cells but not in most normal cells. TRAIL plays critical roles in type 1 diabetes mellitus, and is involved in type 2 diabetes mellitus (T2DM). We recent.. Read More»
- Genet. Mol. Res. 12(3):
- 2013.September.10.2
- DOI:
- 10.4238/2013.September.10.2
Genetic variability in Melipona scutellaris from Rec?´ncavo, Bahia, Brazil
Authors: J.L. Viana, A.K. Francisco, C.A.L. Carvalho and A.M. Waldschmidt
Bees play a key role in pollination and thereby help maintain plant diversity. The stingless bee Melipona scutellaris is an important pollinator in northeastern Brazil because it is endemic to this region. Both deforestation and timber harvesting have reduced the nesting sites for this species, thus reducing its population and range. Genetic studies may h.. Read More»
- Genet. Mol. Res. 12(3):
- 2013.September.10.1
- DOI:
- 10.4238/2013.September.10.1
Molecular cloning and functional analysis of MRLC2 in Tianfu, Boer, and Chengdu Ma goats
Authors: H.G. Xu, G.Y. Xu, L. Wan and J. Ma
To determine the molecular basis of heterosis in goats, fluorescence quantitative polymerase chain reaction (PCR) was performed to investigate myosin-regulatory light chain 2 (MRLC2) gene expression in the longissimus dorsi muscle tissues of the Tianfu goat and its parents, the Boer and Chengdu Ma goats. The goat MRLC2 gene was differentially expressed in.. Read More»
- Genet. Mol. Res. 12(3):
- 2013.March.15.7
- DOI:
- 10.4238/2013.March.15.7
Genetic diversity of gabiroba based on random amplified polymorphic DNA markers and morphological characteristics
Authors: E.S. de Assis, E.F. dos Reis, J.F.N. Pinto, L.A.S. Contim and L.A.S. Dias
The fragmentation of the original vegetation of the Cerrado biome, caused by the expansion of agricultural areas, mainly in central-west Brazil, calls for an assessment of the native population of this vegetation, especially of the species of interest for domestication and sustainable use. The purpose of this study was to characterize the genetic diversit.. Read More»
- Genet. Mol. Res. 12(3):
- 2013.March.11.7
- DOI:
- 10.4238/2013.March.11.7
Comparative and joint analyses of gene expression profiles under drought and rewatering in Arabidopsis
Authors: Z.H. Xu and W.R. Wu
Drought is a major limiting factor in crop production. Rewatering is a process opposite to drought, allowing plants to recover to their normal physiological state. To understand more thoroughly the set of genes involved in plant response to drought, we comparatively and jointly analyzed the microarray data of drought and rewatering experiments in Arabidop.. Read More»
- Genet. Mol. Res. 12(3):
- 2013.September.13.6
- DOI:
- 10.4238/2013.September.13.6
Genetic determinants of the defense response of resistant and susceptible pepper (Capsicum annuum) cultivars infected with Phytophthora capsici (Oomycetes; Pythiaceae)
Authors: Y.-L. Zhang, D.-W. Li, Z.-H. Gong, J.-E. Wang, Y.-X. Yin and J.-J. Ji
Based on culture isolation and morphological observation blight-infected pepper plants in Shaanxi Province, China, we identified the pathogen causing pepper phytophthora blight as Phytophthora capsici. Varieties that differed in resistance (CM334, PBC602, and B27) were inoculated with this pathogen. The root activity of resistant CM334 variety was the hig.. Read More»
- Genet. Mol. Res. 12(3):
- 2013.September.13.5
- DOI:
- 10.4238/2013.September.13.5