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Abstract Detail


The Greatest Opportunists of all: Celebrating 40 years of Job Kuijt’s

Wicke, Susann [2], Quandt, Dietmar [1], Schneeweiss, Gerald M. [2].

Plastid genome evolution in a group of non-photosynthetic angiosperms (Orobanchaceae).

The plastid genome shows extensive conservation in size, structure, composition and rate of nucleotide substitution across land plants. Its composition, however, is not static showing a general trend towards losing genetic information or rearranging genes. Major changes in content and structure of the plastid genome occur in holoparasitic (non-photosynthetic parasitic) plants showing an extensive plastid genome reduction and considerable differences in gene content and functionality. Orobanche and related genera (Orobanchaceae) are a well suited system for conducting a broad comparative investigation, addressing, among others, whether genome reduction and restructuring as well as gene functionality and pseudogene formation follows general trends or rather evolves idiosyncratically and how the change from an autotrophic to a heterotrophic plants affects rate evolution.


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Related Links:
Homepage "Evolution of the parasitic plant Orobanche"


1 - University of Bonn, Nees-Institute of Biodiversity of Plants, Meckenheimer Allee 170, Bonn, D-53115, Germany
2 - University of Vienna, Department of Biogeography, Rennweg 14, Vienna, Vienna, A-1030, Austria

Keywords:
plastid genome
Orobanchaceae
genome reduction
comparative analysis
evolution.

Presentation Type: Symposium or Colloquium Presentation
Session: SY11
Location: Cottonwood A/Snowbird Center
Date: Wednesday, July 29th, 2009
Time: 4:00 PM
Number: SY11008
Abstract ID:55


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