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Evolutionary Bioinformatics

Synopsis: An open access, peer reviewed electronic journal that covers computational evolutionary biology and evolutionary bioinformatics.


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ISSN: 1176-9343



Aims and scope:

Evolutionary Bioinformatics is an international, peer-reviewed journal focusing on evolutionary bioinformatics. There is growing awareness that to understand organismal form and function, through the use of molecular, genetic, genomic, and proteomic data, due consideration must be given to an organism's evolutionary context - history constrains the path an organism is obliged to take, and leaves an indelible mark on its component parts. Evolutionary Bioinformatics publishes papers on all aspects of computational evolutionary biology and evolutionary bioinformatics.

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All submissions to this journal, with the exception of editorials and dedications (obituaries), are subject to rigorous peer review by a minimum of two peer reviewers who demonstrate current research experience in the paper's subject area.  Reviewers are required to provide in-depth, fair and objective reviews.  They may not act as reviewers if they are in a conflict of interest.  All final publishing decisions are made by the Editor in Chief or Associate Editor.

Official journal of the Bioinformatics Institute:

Evolutionary Bioinformatics was established as the official journal of The Bioinformatics Institute.  The Institute is a joint-venture between the University of Auckland, situated in New Zealand’s largest city, and AgResearch, New Zealand’s largest Crown Research Institute. Allen Rodrigo, Professor of Computational Biology and Bioinformatics, is the Institute’s Director, and it was at his initiative that the journal was established.

Working in collaboration with The Institute is Libertas Academica, a publishing firm committed to high editorial standards, open access publishing methodologies and superior user-service standards. There is much work involved ‘behind-the-scenes’ that goes towards the finished result seen by readers of Evolutionary Bioinformatics. Key amongst this work, which also includes attracting the best submissions, supervising effective peer review and typesetting, is gaining acceptance for indexing by outside organizations.

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Comparative Evolutionary Histories of the Fungal Chitinase Gene Family Reveal Non-Random Size Expansions and Contractions due to Adaptive Natural Selection

Authors: Magnus Karlsson and Jan Stenlid
Publication Date: 18 Mar 2008
Evolutionary Bioinformatics 2008:4 47-60

Magnus Karlsson and Jan Stenlid

Department of Forest Mycology and Pathology, Swedish University of Agricultural Sciences, P.O. 7026, SE-75007, Uppsala, Sweden.

Abstract

Gene duplication and loss play an important role in the evolution of novel functions and for shaping an organism’s gene content. Recently, it was suggested that stress-related genes frequently are exposed to duplications and losses, while growth-related genes show selection against change in copy number. The fungal chitinase gene family constitutes an interesting case study of gene duplication and loss, as their biological roles include growth and development as well as more stress-responsive functions. We used genome sequence data to analyze the size of the chitinase gene family in different fungal taxa, which range from 1 in Batrachochytrium dendrobatidis and Schizosaccharomyces pombe to 20 in Hypocrea jecorina and Emericella nidulans, and to infer their phylogenetic relationships. Novel chitinase subgroups are identified and their phylogenetic relationships with previously known chitinases are discussed. We also employ a stochastic birth and death model to show that the fungal chitinase gene family indeed evolves non-randomly, and we identify six fungal lineages where larger-than-expected expansions (Pezizomycotina, H. jecorina, Gibberella zeae, Uncinocarpus reesii, E. nidulans and Rhizopus oryzae), and two contractions (Coccidioides immitis and S. pombe) potentially indicate the action of adaptive natural selection. The results indicate that antagonistic fungal-fungal interactions are an important process for soil borne ascomycetes, but not for fungal species that are pathogenic in humans. Unicellular growth is correlated with a reduction of chitinase gene copy numbers which emphasizes the requirement of the combined action of several chitinases for filamentous growth.



Post comment




Posted by
Manju Sharma
09:57,March 26, 2009

is it possible to alter gene function by adding or removing some of the nuecleotides. Suppose 6 genes are known for the character form various sources. One effective upto 20%,other for 40% and so on. is it possible to bring one out of six to make it 100% capable against particular charcter.


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