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4 de enero de 2008

Literatura reciente, 2

Rensing, SA. et al. 2008.The Physcomitrella Genome Reveals Evolutionary Insights into the Conquest of Land by Plants. Science 4 January 2008: Vol. 319. no. 5859, pp. 64 - 69

"We report the draft genome sequence of the model moss Physcomitrella patens and compare its features with those of flowering plants, from which it is separated by more than 400 million years, and unicellular aquatic algae. This comparison reveals genomic changes concomitant with the evolutionary movement to land, including a general increase in gene family complexity; loss of genes associated with aquatic environments (e.g., flagellar arms); acquisition of genes for tolerating terrestrial stresses (e.g., variation in temperature and water availability); and the development of the auxin and abscisic acid signaling pathways for coordinating multicellular growth and dehydration response. The Physcomitrella genome provides a resource for phylogenetic inferences about gene function and for experimental analysis of plant processes through this plant's unique facility for reverse genetics."

TNT ahora disponible sin costo


A partir del 20 de Noviembre del 2007, el programa TNT (Tree analysis using New Technology) creado por Pablo Goloboff, James Farris y Kevin Nixon esta disponible sin costo alguno gracias a un subsidio de la sociedad Willi Hennig.

Mas información sobre el programa y la manera de obtenerlo puede ser encontrado siguiendo esta liga.

Aqui pueden leer un review >>>

2 de enero de 2008

Taller de métodos filogenéticos, BML

click for full-zise image



"Phylogenetic methods have revolutionized modern systematics and become indispensable tools in evolution, ecology and comparative biology, playing an increasingly important role in analyses of biological data at levels of organization ranging from molecules to ecological communities. The construction of phylogenetic trees is becoming a methodology that is well-defined, with broad agreement on the central issues and questions. A nearly standard set of topics is now taught as part of the curriculum at many colleges and universities. On the other hand, application of phylogenetic methods to interesting problems outside of systematics is an area of special excitement, innovation, and controversy, and perspectives vary widely."

"In March, 2008, for the ninth year, we will teach a workshop for graduate students interested in applying phylogenetic methods to diverse topics in biology. The one-week course will be an intensive exploration of problems to which modern phylogenetic tools are being applied. We cover a range of topics in biogeography, ecology, conservation biology, phylogenomics, functional morphology, macroevolution, speciation, and character evolution. The course starts with recent advances in phylogenetic methodology, and then focuses on methods and tools that can be brought to bear on these "applied" issues in the context of a given phylogeny."

"Application Deadline. Applications are due by January 15, 2008."

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