Sangam: A Confluence of Knowledge Streams

A Bayesian Approach for Fast and Accurate Gene Tree Reconstruction

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dc.contributor Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory
dc.contributor Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
dc.contributor Kellis, Manolis
dc.contributor Rasmussen, Matthew D.
dc.contributor Kellis, Manolis
dc.creator Rasmussen, Matthew D.
dc.creator Kellis, Manolis
dc.date 2012-05-25T17:07:45Z
dc.date 2012-05-25T17:07:45Z
dc.date 2010-07
dc.date.accessioned 2023-03-01T08:05:46Z
dc.date.available 2023-03-01T08:05:46Z
dc.identifier 0737-4038
dc.identifier 1537-1719
dc.identifier http://hdl.handle.net/1721.1/70947
dc.identifier Rasmussen, M. D., and M. Kellis. “A Bayesian Approach for Fast and Accurate Gene Tree Reconstruction.” Molecular Biology and Evolution 28.1 (2010): 273–290. Web. 25 May 2012.
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/276105
dc.description Supplementary tables S1, sections 2.1–2.3, and figures S1–S11 are available at Molecular Biology and Evolution online (http://www.mbe.oxfordjournals.org/).
dc.description Recent sequencing and computing advances have enabled phylogenetic analyses to expand to both entire genomes and large clades, thus requiring more efficient and accurate methods designed specifically for the phylogenomic context. Here, we present SPIMAP, an efficient Bayesian method for reconstructing gene trees in the presence of a known species tree. We observe many improvements in reconstruction accuracy, achieved by modeling multiple aspects of evolution, including gene duplication and loss (DL) rates, speciation times, and correlated substitution rate variation across both species and loci. We have implemented and applied this method on two clades of fully sequenced species, 12 Drosophila and 16 fungal genomes as well as simulated phylogenies and find dramatic improvements in reconstruction accuracy as compared with the most popular existing methods, including those that take the species tree into account. We find that reconstruction inaccuracies of traditional phylogenetic methods overestimate the number of DL events by as much as 2–3-fold, whereas our method achieves significantly higher accuracy. We feel that the results and methods presented here will have many important implications for future investigations of gene evolution.
dc.description National Science Foundation (U.S.) (CAREER award NSF 0644282)
dc.format application/pdf
dc.language en_US
dc.publisher Oxford University Press (OUP)
dc.relation http://dx.doi.org/10.1093/molbev/msq189
dc.relation Molecular Biology and Evolution
dc.rights Creative Commons Attribution Non-Commercial
dc.rights http://creativecommons.org/licenses/by-nc/2.5
dc.source Oxford
dc.title A Bayesian Approach for Fast and Accurate Gene Tree Reconstruction
dc.type Article
dc.type http://purl.org/eprint/type/JournalArticle


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