Genes from Common Bean ( L.) Show Broad to Specific Abiotic Stress Responses and Distinct Levels of Nucleotide Diversity.

We analyzed the nucleotide variability and the expression profile of genes from common bean, a crop of high economic and nutritional value throughout the world but constantly affected by abiotic stresses in cultivation areas. As genes have been constantly associated with abiotic stress tolerance, we systematically categorized 54 putative genes distributed in the common bean genome. It involved from AP2 domain location and amino acid conservation analysis (valine at the 14 position) to the identification of conserved motifs within peptide sequences representing six subgroups (A-1 to A-6) of PvDREB proteins.

Analysis of the common bean (Phaseolus vulgaris L.) transcriptome regarding efficiency of phosphorus use.

Common bean is a highly important food in tropical regions, where most production occurs on small farms with limited use of technology and, consequently, greater vulnerability to abiotic stresses such as nutritional stress. Usually phosphorus (P) is the most limiting nutrient for crop growth in these regions. The aim of this study was to characterize the gene expression profiles of the genotypes of common bean IAC Imperador (P-responsive) and DOR 364 (P-unresponsive) under different P concentrations using RNA-seq transcriptome sequencing technology.

Transcriptional analysis of drought-induced genes in the roots of a tolerant genotype of the common bean (Phaseolus vulgaris L.).

In Brazil, common bean (Phaseolus vulgaris L.) productivity is severely affected by drought stress due to low technology cultivation systems. Our purpose was to identify differentially expressed genes in roots of a genotype tolerant to water deficit (BAT 477) when submitted to an interruption of irrigation during its development.