†Background The model plant Arabidopsis thaliana (Arabidopsis) shows a wide range of genetic and trait variation among wild accessions. Because of its unparalleled biological and genomic resources, the potential of Arabidopsis for molecular genetic analysis of this natural variation has increased dramatically in recent years. † Scope Advanced genomics has accelerated molecular phylogenetic anal...

The salt tolerance of rice (Oryza sativa) correlates with the ability to exclude Na+ from the shoot and to maintain a low cellular Na+/K+ ratio. We have identified a rice plasma membrane Na+/H+ exchanger that, on the basis of genetic and biochemical criteria, is the functional homolog of the Arabidopsis (Arabidopsis thaliana) salt overly sensitive 1 (SOS1) protein. The rice transporter, denoted...

Botrytis cinerea is a ubiquitous necrotrophic fungal pathogen that infects over 200 different plant species. We have analyzed 17 Arabidopsis ecotypes for natural variations in their susceptibility to B. cinerea, and found compatible and incompatible Arabidopsis–Botrytis interactions. We determined that Arabidopsis ecotype Ler is resistant to 5 B. cinerea isolates used in this study. To further ...

Over 1000 genetically linked RFLP loci in Brassica napus were mapped to homologous positions in the Arabidopsis genome on the basis of sequence similarity. Blocks of genetically linked loci in B. napus frequently corresponded to physically linked markers in Arabidopsis. This comparative analysis allowed the identification of a minimum of 21 conserved genomic units within the Arabidopsis genome,...

Understanding the fundamental mechanisms of plant disease resistance is of central importance to sustainable agriculture and human health. Use of the model plant Arabidopsis thaliana has resulted in an explosion of information regarding both disease resistance and susceptibility to pathogens. The last 20 years of research have demonstrated the commonalities between Arabidopsis and crop species....

In this study, we subcloned the full-length cDNA of the UDP-glucose pyrophosphorylase gene of Corchorus capsularis into expression vector pCAMBIA 1301. Arabidopsis were transformed by floral-dip method, PCR and southern hybridization results indicate exogenous gene was integrated into the Arabidopsis genome. Overexpression of CcUGPase gene revealed increased height and more rapid growth rate in...

The crossover distribution in meiotic tetrads of Arabidopsis thaliana differs from those previously described for Drosophila and Neurospora. Whereas a chi-square distribution with an even number of degrees of freedom provides a good fit for the latter organisms, the fit for Arabidopsis was substantially improved by assuming an additional set of crossovers sprinkled, at random, among those distr...