Bird familly tree Experts used the family tree to map out where the almost 10,000 species of birds live to show where the most diversification has taken place in the world. Researchers, from the University of Sheffield, Yale University, University of Tasmania and Simon Fraser University, say the creation of new species has speeded-up over the last 50 million years. Surprisingly, species formation is not faster in the species rich tropics, but was found to be faster in the Western Hemisphere compared to the Eastern Hemisphere as well as on islands. source :  W. Jetz and all, The global diversity of birds in space and time, Nature.
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Bird familly tree

Experts used the family tree to map out where the almost 10,000 species of birds live to show where the most diversification has taken place in the world.

Researchers, from the University of Sheffield, Yale University, University of Tasmania and Simon Fraser University, say the creation of new species has speeded-up over the last 50 million years. Surprisingly, species formation is not faster in the species rich tropics, but was found to be faster in the Western Hemisphere compared to the Eastern Hemisphere as well as on islands.

source :  W. Jetz and all, The global diversity of birds in space and time, Nature.

Comparaison du génome de huit souches d’E. coli entéroagrégative O104:H4 the eight circular bands represent the tracks for the different enteroaggregative E. coli (EAEC) O104:H4 isolates sequenced in this study (from inner to outer tracks: 55989, C227-11, C734-09, C35-10, C682-09, C760-09, C754-09, and C777-09). These different bands represent coverage plots mapped against the reference genome 55989, with blue or green indicating a high degree of coverage, yellow moderate coverage, and orange or red little or no coverage. source : David A. Rasko and all, Origins of the E. coli Strain Causing an Outbreak of Hemolytic–Uremic Syndrome in Germany, N Engl J Med 2011; 365:709-717, August 25, 2011
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Comparaison du génome de huit souches d’E. coli entéroagrégative O104:H4

the eight circular bands represent the tracks for the different enteroaggregative E. coli (EAEC) O104:H4 isolates sequenced in this study (from inner to outer tracks: 55989, C227-11, C734-09, C35-10, C682-09, C760-09, C754-09, and C777-09). These different bands represent coverage plots mapped against the reference genome 55989, with blue or green indicating a high degree of coverage, yellow moderate coverage, and orange or red little or no coverage.

source : David A. Rasko and all, Origins of the E. coli Strain Causing an Outbreak of Hemolytic–Uremic Syndrome in Germany, N Engl J Med 2011; 365:709-717, August 25, 2011

Comparaison de quatre génomes  The illustration shows syntenic relationships between human, chimpanzee, mouse and zebrafish genomes. Curved links encode sequence similarity and outer data tracks represent consensus similarity statistics and orthologous genes. The image shows a detail of a visualization prepared with the free genome comparison tool, Circos. Martin Krzywinski, a research scientist at Canada’s Michael Smith Genome Sciences Center, is interested in fingerprinting, data analysis and data visualization. Visit the website at http://mkweb.bcgsc.ca/circos for more information on Circos and other activities and projects of Martin Krzywinski. Source : EMBO Journal
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Comparaison de quatre génomes

 The illustration shows syntenic relationships between human, chimpanzee, mouse and zebrafish genomes. Curved links encode sequence similarity and outer data tracks represent consensus similarity statistics and orthologous genes. The image shows a detail of a visualization prepared with the free genome comparison tool, Circos. Martin Krzywinski, a research scientist at Canada’s Michael Smith Genome Sciences Center, is interested in fingerprinting, data analysis and data visualization. Visit the website at http://mkweb.bcgsc.ca/circos for more information on Circos and other activities and projects of Martin Krzywinski.

Source : EMBO Journal