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Abstract Detail


Plant Phylogenomics: Defining Synergies Between Plant Systematics and Genome Biology

Leebens-Mack, James H. [1], Shan, Hongyan [2], Zahn, Laura [3], Wall, P. Kerr [4], Duarte, Jill Ricker [4], Ma, Hong [4], dePamphilis, Claude W. [4].

A genome-scale view of the evolutionary diversification of land plant transcription factors.

Phylogenomic analyses show that gene birth and death rates have varied among transcription factor gene families throughout the evolutionary history of land plants. Comparisons of diversity within and among plant transcription factor families will be presented within the context of the organismal phylogeny and genome duplication events. This approach reveals both commonalities and differences in the demography of transcription factor families. In addition, molecular evolutionary analyses elucidate shifting patterns of selection within some transcription factor families following genome duplications and some speciation events. Understanding the causes and consequences of these dynamics will require additional, phylogentically well-placed model systems for comparative functional studies.


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Related Links:
Floral Genome Project
PlantTribes Gene Family Database
Leebens-Mack Lab Website


1 - University of Georgia, Department of Plant Biology, 4504 Miller Plant Sciences, Athens, GA, 30602, USA
2 - University of Georgia, Department of Plant Biology, 4506 Miller Plant Sciences, Athens, GA, 30602, USA
3 - The American Association for the Advancement of Science, 1200 New York Ave NW, Washington, DC, 20005, USA
4 - Pennsylvania State University, Department of Biology, Institute of Molecular Evolutionary Genetics, and The Huck Institutes of the Life Sciences, University Park, Pennsylvania, 16802, USA

Keywords:
Comparative Genomics
phylogenetics
molecular evolution
Genome duplication.

Presentation Type: Symposium or Colloquium Presentation
Session: SY03
Location: Stevens 2/Hilton
Date: Monday, July 9th, 2007
Time: 11:15 AM
Number: SY03007
Abstract ID:1544


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