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Abstract Detail



Evolutionary Developmental Biology (Evo-Devo)

Der, Joshua [1], Albert, Victor [2], Barbazuk, W. Brad [3], Estill, James [4], Jiao, Yuannian [5], Leebens-Mack, Jim [4], Ma, Hong [1], Soltis, Douglas [6], Soltis, Pamela [7], Wafula, Eric [1], DE PAMPHILIS, CLAUDE W [1].

Gene family content of the ancestral angiosperm genome.

The angiosperms (flowering plants) represent one of the greatest evolutionary radiations in the history of life on Earth. Comprising at least 350,000 living species, flowering plants have come to dominate every habitable terrestrial environment. Associated with the origin of flowers are a number of distinctive morphological features, including ovules enclosed in a carpel, double fertilization, and unique features of the vascular tissues. We leveraged the complete genome sequence of Amborella trichopoda, the earliest diverging lineage of flowering plants, in a comparative gene family analysis with 21 sequenced land plant genomes, plus transcriptome sequences from gymnosperms and other basal angiosperms, to identify novel gene lineages associated with the ancestral angiosperm. We also investigate the functions of gene lineages retaining paralogs that trace their origin back to the whole genome duplication event in the common ancestor of flowering plants (epsilon). Finally, we dissect the evolution of genes with known roles in floral development to understand the molecular basis of flower diversity.

Broader Impacts:


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Related Links:
The Amborella Genome Database


1 - The Pennsylvania State University, Deptment of Biology, University Park, PA, 16802, USA
2 - University At Buffalo, Biological Sciences, 109 Cooke Hall, Buffalo, NY, 14260, USA
3 - University of Florida, Deptment of Biology, Gainesville, FL, 32611, USA
4 - University of Georgia, Department of Plant Biology, Athens, GA, 30602, USA
5 - University of Georgia, Plant Genome Mapping Laboratory, Athens, GA, 30602, USA
6 - University of Florida, Biology and Florida Museum of Natural History, Gainesville, FL, 32605, USA
7 - University of Florida, Florida Museum of Natural History, PO BOX 117800, Gainesville, FL, 32611-7800, USA

Keywords:
Amborella trichopoda
floral evolution
comparative genomics
gene family
basal angiosperm
whole genome duplication.

Presentation Type: Oral Paper:Papers for Topics
Session: 47
Location: Jasperwood/Riverside Hilton
Date: Wednesday, July 31st, 2013
Time: 1:45 PM
Number: 47002
Abstract ID:853
Candidate for Awards:None


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