Organized by the Bioinformatics Core Facility at CRG and Toni Gabaldon's lab. Location: Centre for Genomic Regulation, Barcelona (Spain). Duration: 3 days Dates: April 6th- 8th (2011)
free registration (limited places) deadline: (CLOSED)
(Added some location and accomodation info)
Material and examples are available upon request
COURSE DESCRIPTION: Phylogentic analyses are gradually reaching genomic scales. Nowadays, many resources and surveys encompass a large number of trees that, often, cannot be manually analyzed. Bioinformatics toolkits are intended to provide a flexible framework to deal with specific data in a programmatic way, thus facilitating the analysis of large collections of data. The Environment for Tree Exploration (ETE, http://ete.cgenomics.org) is a Python programming toolkit specially focused on dealing with hierarchical trees. It allows, for instance, to perform a number of operations on phylogenetic trees, as well as designing automatic pipelines. It also provides a highly customizable drawing engine, which can be used to create complex annotated tree images in an automatic way or to interactively explore single trees. Moreover, the ETE toolkit is not only limited to large scale analyses, as it can be used to easily develop specific tree analysis methods for single trees. For instance, TreeKo is a novel software based on ETE which is designed to perform large scale comparisons of tree topologies taking into account speciation a duplication events.
The purpose of this course is to provide an introduction to the analysis of phylogenetic trees. It will cover a broad range of tasks that are usually required in any phylogenomic analysis: tree rooting, prediction of orthology and paralogy relationships, tree annotation, calculating distances among sequences or species, tree pruning, trees comparison, and tree visualization. The use of large scale phylogenomic resources, such as PhylomeDB or Ensembl Compara, will be also tackled through examples and exercises. This course will be mostly practical and will be focused on solving real life examples.
Course attendees are expected to have basic programming skills (not necessarily in Python, although it is recommended*). All exercises will consist on developing Python scripts to perform different analysis on phylogenetic trees using the ETE toolkit on a GNU/Linux environment.
*Important Note: NO introduction to Python programming is scheduled in the course. However, Python is a very intuitive language that can be learned quickly when you have programmed in other languages. As a reference, Chapters 3-7 and 9 from this tutorial would be more than enough to follow the whole course.
Toni Gabaldon leads the Comparative Genomics group at the Centre for Genomic Regulation. and is Associate Professor at the Universitat Pompeu Fabra. He got his PhD on comparative genomics at the "Radboud Universiteit Nijmegen" (The Netherlands) in 2005. His group has made significant contributions to the development of tools for phylogenomic analysis including, phylomeDB [2], ETE [3]. TreeKo, trimAl ,and MetaPhOrs, as well as in the exploitation of phylogenomic data for the understanding of the evolution and function of complex biological processes. Gabaldon has extensive experience in teaching bioinformatics and molecular evolution at the undergraduate and graduate levels. homepage: http://big.crg.cat/people/toni_gabaldon | |
Jaime Huerta-Cepas is a postdoc researcher within the Comparative Genomics group at the Centre for Genomic Regulation. He got his PhD on human genome evolution [1] and large scale phylogentic analyses at the "Universidad Autónoma de Madrid" in 2008. Jaime is the main developer of the phylomeDB database [2], and the ETE toolkit [3]. His work focuses on applying large scale phylogenetic analyses to address different biological problems, such as understanding gene duplication, the evolution of gene expression, functional genome annotation, orthology and paralogy prediction, and the reconstruction of species Tree of Life. Personal homepage: http://jhcepas.cgenomics.org
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Marina Marcet-Houben obtained her degree in Biochemistry in the Rovira i Virgili University (Tarragona, Spain). She did her PhD on fungal phylogenomics in the Comparative Genomics lab at the Center for Genomic Regulation in Barcelona. Her main research interests are related to the use of large scale phylogenomics tools to study the evolution of fungi [4] as well as in studies involving the robustness of species trees [5]. Marina is an active collaborator in the phylomeDB project and the main developer of TreeKo, a tool for comparing phylogenetic tree topologies. |
[1] J. Huerta-Cepas, H. Dopazo, J. Dopazo and T. Gabaldón. The Human Phylome. Genome Biology 8:r109, 2007.
[2] Huerta-Cepas, J., Bueno, A., Dopazo, J., Gabaldon, T. PhylomeDB: A database for complete collections of gene phylogenies. Nucleic Acids Res. 2008 Jan. 36 (Database issue):D491-6.
[3] Jaime Huerta-Cepas, JoaquÃn Dopazo and Toni Gabaldón. ETE: A python Environment for Tree Exploration. BMC Bioinformatics. 2010, 11:24.
[4] Marcet-Houben M, Gabaldón T. Acquisition of prokaryotic genes by fungal genomes. Trends Genet. 2010 Jan;26(1):5-8.
[5] Marcet-Houben M, Gabaldón T. The tree versus the forest: the fungal tree of life and the topological diversity within the yeast phylome. PLoS One. 2009;4(2):e4357. Epub 2009 Feb 3.
Wed, April 6th | Day #1 |
09:30 - 11:00 |
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11:00 - 11:30 | Coffee Break |
11:30 - 13:30 |
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13:30 - 15:00 | Lunch Break |
15:00 - 16:00 |
(examples and exercises) |
16:00 - 16:30 | Tea Break |
16:30 - 18:00 | GLOBAL EXERSICE : Functional annotation of the newly sequenced genome of Pea Aphid |
Thu, April 7th | Day #2 |
09:30 - 11:00 |
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11:00 - 11:30 | Coffee Break |
11:30 - 13:30 | (examples and exercises)
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13:30 - 15:00 | Lunch Break |
15:00 - 16:00 |
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16:00 - 16:30 | Coffee Break |
16:30 - 18:00 |
(examples) GLOBAL EXERSICE : Functional annotation of the newly sequenced genome of Pea Aphid |
Fri, April 8th | Day #3 |
09:30 - 11:00 |
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Coffee Break | |
11:30 - 13:30 |
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13:30 - 15:00 | Lunch Break |
15:00 - 16:00 |
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16:00 - 16:30 | Tea Break |
16:30 - 18:00 |
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* Some useful information about accomodation
There are 2 student's residences at a walking distance:
*Residència Campus del Mar*
Passeig Salvat Papasseit, 4
08003 - Barcelona
Tel +34 93 390 4000
Fax +34 93 310 6627
campusdelmar@resa.es
http://www.resa.es/eng/
MAP - R Campus DEL MAR- PRBB.pdf
*Residència Ciutadella*
Pg. Pujades 33-37
ciutadella@resa.es
www.resa.es/esl/residencias/
ETE is developed as an academic free software tool. If you find ETE useful for your work, please cite:
Jaime Huerta-Cepas, Joaquín Dopazo and Toni Gabaldón. ETE: a python Environment for Tree Exploration. BMC Bioinformatics 2010, 11:24. doi:10.1186/1471-2105-11-24
The ETE Toolkit was originally
developed at the bioinformatics
department of CIPF and greatly improved
at the comparative genomics unit
of CRG. At present, ETE is maintained by Jaime
Huerta-Cepas at the Structural and
Computational Biology unit of EMBL (Heidelberg,
Germany).