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Applications of phylogenetic incongruence to detecting and reconstructing interspecific recombination and horizontal gene transfer
In bacteria and viruses, recombination and horizontal gene transfer (HGT) permit the direct exchange or acquisition of DNA into the genome from species other than the "parent". Two major challenges face attempts at ...
A model of lateral inhibition and directional selectivity in the crayfish compound eye
This study models the network interactions of five classes of neurons in the crayfish retina which support lateral inhibition and directional selectivity. The models approximate pulse responses and responses to drifting ...
Taxonomic revision of Clematis L. subgenus Clematis (Ranunculaceae) for Latin America and the Caribbean
A revised classification of the Latin American and Caribbean species of Clematis L. subgenus Clematis is presented. Twenty-six species are recognized based on morphological and geographical data. Eight taxa not considered ...
Cloning and characterization of genes required for osmoregulation in the yeast Saccharomyces cerevisiae
Salt stress induces multiple physiological responses in unicellular organisms. Responses include both immediate effects upon membrane permeability to select cytoplasmic solutes and changes in gene expression. This study ...