Query: NC_017303:1836500 Corynebacterium pseudotuberculosis I19 chromosome, complete genome Lineage: Corynebacterium pseudotuberculosis; Corynebacterium; Corynebacteriaceae; Actinomycetales; Actinobacteria; Bacteria General Information: This disease is found in all the world's major sheep and goat production areas, causing significant economic losses worldwide, mainly due to the reduction of wool, meat and milk yields, decreased reproductive efficiencies of affected animals and condemnation of carcasses and skins in abattoirs. In some cases, the infection produces few obvious clinical signs in the animal, remaining unrecognized until a post-mortem examination has been carried out and, making it difficult to obtain definitive data about prevalence of the disease.
- Sequence; - BLASTN hit (Low score = Light, High score = Dark) - hypothetical protein; - cds: hover for description
General Information: This strain is the symbiont of the aphid Schizaphis graminum and contains a large circular chromosome. Aphid endosymbiont. Almost all aphids contain maternally transmitted bacteriocyte cells, which themselves contain bacteria called Buchnera. The aphids live on a restricted diet (plant sap), rich in carbohydrates, but poor in nitrogenous or other essential compounds. It is believed that the Buchnera provide the essential nutrients the host lacks. Besides a nutritional co-dependence, due to a co-existence of millions of years, Buchnera have lost the ability to produce cell surface components such as lipopolysaccharides. This makes for an obligate endosymbiont relationship between host and Buchnera. Buchnera are prokaryotic cells which belong to the gamma-Proteobacteria, closely related to the Enterobacteriaceae family. Phylogenetic studies using 16S rRNA indicate that the symbiotic relationship was established around 200-250 million years ago. Since Buchnera are closely related to Escherichia coli and Haemophilus influenzae, comparative genomic studies can shed light on the evolutionary mechanisms of intracellular endosymbiosis as well as the different underlying molecular basis between organisms with parasitic behavior and symbionts.