Genomics / Proteomics
dePamphilis, Claude W. , Ayyampalayam, Saravanaraj , Bliss, Barbara , Brockington, Samuel, F , Chanderbali, Andre , Duarte, Jill R. , Hu, Yi , Jiao, Yuannian , Liang, Haiying , Landherr, Lena , Ralph, Paula , Altman, Naomi , Carlson, John , Clifton, Sandra W. , Ma, Hong , Leebens-Mack, James H. , Schlarbaum, Scott E. , Soltis, Douglas E. , Soltis, Pamela S. , Stevenson, Dennis Wm. .
The Ancestral Angiosperm genetic toolkit.
The origin and early diversification of flowering plants more than 140 million years ago initiated a huge radiation that has led to more than 300,000 species of living flowering plants with tremendous diversity in development, morphology, floral form, and biochemistry. The Ancestral Angiosperm Genome Project is using large-scale EST sequencing to identify the sets of genes expressed in five basal angiosperms (Amborella trichopoda, Nuphar advena, Aristolochia fimbriata, Liriodendron tulipifera, and Persea americana) and one gymnosperm (Zamia furfuracea). To date, more than 181,000 Sanger EST sequences and 7.4 million 454 ESTs have been obtained, representing a vast source of new information about genes and their expression patterns in basal angiosperms and gymnosperms. The data are allowing us to make inferences about angiosperm phylogeny, the sets of genes present in the most recent common ancestor of all flowering plants, and how the genes in the ancestral angiosperm diversified through the early angiosperm radiation. Ancient polyploidy events inferred from EST datasets in each of the angiosperms (except possibly Amborella) are being used in phylogenomic studies to more accurately time an early genome duplication event that may have occurred just before or after the origin of living angiosperms.
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1 - Penn State University, University Park, PA, 16801, USA
2 - University of Georgia, Athens, GA, 30602, USA
3 - University of Florida, Gainesville, FL, 32611, USA
4 - Clemson University, Clemson, SC, 29634, USA
5 - Washington University, St. Louis, MO, 63108, USA
6 - University of Tennessee, Knoxville, TN, 37996, USA
7 - New York Botanical Garden, Bronx, NY, 10458, USA
Presentation Type: Oral Paper:Papers for Topics
Location: Cottonwood B/Snowbird Center
Date: Monday, July 27th, 2009
Time: 8:15 AM