NDLI: High performance phylogenetic inference

Content Provider	IEEE Xplore Digital Library
Author	Clement, M. Snell, Q. Judd, G. Whiting, M.
Copyright Year	1999
Description	Author affiliation: Brigham Young Univ., Provo, UT, USA (Clement, M.)
Abstract	Phylogenetic analysis is an integral part of many biological research programs. In essence, it is the study of gene genealogy. It is the study of gene mutation and the generational relationships. Phylogenetic analysis is being used in many diverse areas such as human epidemiology, viral transmission, biogeography, and systematics. Researchers are now commonly generating many DNA sequences from many individuals, thus creating very large data sets. However, our ability to analyze the data has not kept pace with data generation, and phylogenetics has now reached a crossroads where we cannot effectively analyze the data we generate. The chief challenge of phylogenetic systematics in the next century will be to develop algorithms and search strategies to effectively analyze large data sets. The crux of the computational problem is that the actual landscape of possible topologies can be extraordinarily difficult to evaluate with large data sets. The parsimony ratchet is actually a family of iterative tree search methods that use a statistical approach to sampling tree islands and ultimately finding the most parsimonious trees for a data set. Each iteration of the parsimony ratchet may occur in parallel as there is no direct dependency between iterations. The authors' implementation of the parallel ratchet is masterworker based. A master process is launched in the DOGMA system which then launches worker tasks on available nodes. Each worker task is simply wrapper code that is used to interact with the newest release version of NONA.
Starting Page	335
Ending Page	336
File Size	197667
Page Count	2
File Format	PDF
ISBN	0780356810
ISSN	10828907
DOI	10.1109/HPDC.1999.805315
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-08-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Phylogeny Systematics Data analysis Biological information theory Genetic mutations Humans Biogeography DNA Sequences Iterative algorithms
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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