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6 de agosto de 2010

Profile: Douglas and Pamela Soltis: The Power of Two

Science 6 August 2010:
Vol. 329. no. 5992, pp. 623 - 625
DOI: 10.1126/science.329.5992.62

News Focus

Profile: Douglas and Pamela Soltis:

The Power of Two

Elizabeth Pennisi

A University of Florida couple studying the evolution of flowering plants shows the value of doubled genomes—and joined careers.


Figure 1

Married, with plants. Douglas and Pamela Soltis work together in all aspects of their careers.

CREDIT: E. PENNISI/SCIENCE

[Larger version of this image]

PULLMAN, WASHINGTON—When Pamela Soltis first joined her husband, Douglas, on the faculty at Washington State University, Pullman, they wrote separate grants and ran separate research programs. But they worked side by side in the field and in the greenhouse and read and critiqued each other's grant proposals and papers. More often than not, they also worked together in the lab. "We knew we were interested in a lot of the same things," Pam recalls. Eventually, they gave up trying to work independently.

Today, more than 25 years later, they are known collectively as the "Solti." "We're generally viewed as one person," Pam says. True, they have separate appointments at the University of Florida, Gainesville, she at the natural history museum and he in the biology department. But students, grants, courses, publications, talks, even accolades are shared. They studied in London on the same Fulbright scholarship and were co-awardees on an international prize. "Everything they do, they do together," says Michael Donoghue, an evolutionary biologist at Yale University.

"They are the most powerful, productive couple that may have ever been in botany, certainly in my generation," says John Kress, an evolutionary biologist at the Smithsonian National Museum of Natural History in Washington, D.C. The Soltises helped bring plant systematics into the molecular age, according to peers. And their innovations have led to firsts in "approaches to questions and ultimately first answers to questions," says Vaughan Symonds, a former postdoc now at Massey University in Palmerston North, New Zealand.

Early adopters of new techniques—including molecular DNA tools—as students in the 1980s, the Soltises have shown how rapid progress can be when two minds focus on a single research program. Says Jeffrey Doyle, a systematist at Cornell University, "They are so energetic and active that seeing Doug and Pam moving into your areas is a little frightening."
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30 de julio de 2010

Fast, Free Phylogenies: HPC for Phylogenetics Tutorial


Topic: High Performance Computing for Phylogenetics

Meeting dates: October 13-15, 2010

Location: NIMBioS at the University of Tennessee, Knoxville

Co-sponsors: NIMBioS, iPlant, and National Institute for Computational Sciences

Tutorial leaders Eric Carr (NIMBioS); Jim Ferguson (National Institute for Computational Sciences, Univ. of Tennessee/Oak Ridge National Laboratory); Susan Holmes (Stanford Univ.); Brian O'Meara (Univ. Tennessee); Alexis Stamatakis (Technical Univ. of Munich); Dan Stanzione (Texas Advanced Computing Center/iPlant); Bob Thomson (Univ. California Davis); and James Wilgenbusch (Florida State Univ.)

Objectives: This tutorial focuses on how to use TeraGrid, the CIPRES Portal, the iPlant Discovery environment, university clusters, and other typically free HPC resources for phylogenetic analysis. The tutorial is geared primarily toward biologists (including students, postdocs and faculty) who are at least moderately experienced with phylogenetic analysis and who have datasets to run but who are typically running analyses on their own desktops, though other researchers, such as statisticians or mathematicians working in phylogenetics, are encouraged to apply. Learning can be enhanced for people applying as a team (such as a pairing of a biologist and a statistician who collaborate in their work).

MORE INFO HERE >>>

17 de julio de 2010

Curso Cladística - Tucumán - 16-20 Agosto

clado : Mensaje: Curso Cladística - Tucumán - 16-20 Agosto

NOMBRE DEL CURSO: CLADÍSTICA: MÉTODOS CUANTITATIVOS DE CLASIFICACIÓN

16 al 20 de Agosto de 2010
Facultad de Ciencias Naturales, Universidad Nacional de Tucumán

Docente: Pablo Goloboff (Inv. Ppal CONICET)
Ayudantes del Curso (en orden analfabético): Claudia Szumik, Marcos
Mirande, Santiago Catalano, J. Salvador Arias (todos de CONICET)

CONTENIDO Y CRONOGRAMA

DIA 1
Teórico: Parsimonia y sistemática filogenética. Optimización y mapeo de
caracteres (mapeo/reconstrucciones/cambios específicos).
Práctico: Input/output. Formatos de datasets. Archivos de instrucciones.
Opciones de output como metafiles; creación de “batch filesâ€�. Edición de árboles.
Manejo de archivos de árboles. Grupos de árboles, caracteres, y taxones.

DIA 2
Teórico: Búsquedas, parte I. Soluciones exactas, árboles de Wagner,
branch-swapping.
Optimos locales y óptimos globales; estrategias de búsqueda. Factores que
afectan la eficiencia de las búsquedas.
Práctico: Uso de secuencias múltiples de adición al azar. Constraints y
Estrategias de búsquedas heurísticas.

DIA 3
Teórico/Práctico: Reglas de colapsamiento. Consensos (incluyendo: mejoras de
consensos y superárboles). Comparaciones de topologías de árboles; distancias de SPR.
Pesado de caracteres.
Funciones de pesado definidas por el usuario.

DIA 4
Teórico/Práctico: Medidas de soporte. Soporte de Bremer; búsqueda de
árboles subóptimos. Medidas basadas en remuestreo; efectos de tipos de búsquedas y reglas de
colapsamientos.

DIA 5
Teórico/Práctico: Búsquedas, parte II: Nuevos algoritmos de búsqueda.
Análisis de datasets de gran tamaño; estrategias generales. Scripts; control de flujo, expresiones y
variables.


MODALIDAD DEL CURSO

Teórico/práctico, con fuerte énfasis en los aspectos prácticos. Las clases
teóricas se usan para introducir la problemática general en cada tema, y los prácticos se utilizan
para ilustrar y terminar de entender los temas vistos en las clases teóricas. La dinámica del
curso es bastante informal, pasando de modalidad "teórico" a modalidad "práctico" rápidamente y
a requerimiento de los participantes.
El curso se dictará en la sala de computadoras de CompuTronic, San Lorenzo 982,
San Miguel de Tucumán.
Las clases serán diarias, de 9:30 a 18:30 hs.

CUPO
El curso puede incluir hasta 30 personas; se efectuarán las inscripciones por
estricto orden de llegada.

DURACION
40 hs. aprox.

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