Related Experiment Video
Updated: Jul 19, 2026

Annotation of Plant Gene Function via Combined Genomics, Metabolomics and Informatics
Published on: June 17, 2012
Supernetwork identifies multiple events of plastid trnF(GAA) pseudogene evolution in the Brassicaceae
Marcus A Koch1, Christoph Dobes, Christiane Kiefer
1Heidelberg Institute for Plant Science, Biodiversity and Plant Systematics, Heidelberg University, Heidelberg, Germany. marcus.koch@urz.uni-heidelberg.de
Abstract:
The occurrence of nonfunctional trnF pseudogenes has been rarely described in flowering plants. However, we describe the first large-scale supernetwork for the Brassiccaeae built from gene trees for 5 loci (adh, chs, matK, trnL-F, and ITS) and report multiple independent origins for trnF pseudogenes in crucifers. The duplicated regions of the original trnF gene are comprised of its anticodon domain and several other highly structured motifs not related to the original gene. Length variation of the trnL-F intergenic spacer region in different taxa ranges from 219 to 900 bp as a result of differences in pseudocopy number (1-14). It is speculated that functional constraints favor 2-3 or 5-6 copies, as found in Arabidopsis and Boechera. The phylogenetic distribution of microstructural changes for the trnL-F region supports ancient patterns of divergence in crucifer evolution for some but not all gene loci.
More Related Videos
09:32An Array-based Comparative Genomic Hybridization Platform for Efficient Detection of Copy Number Variations in Fast Neutron-induced Medicago truncatula Mutants
Published on: November 8, 2017
10:40Comprehensive Workflow for the Genome-wide Identification and Expression Meta-analysis of the ATL E3 Ubiquitin Ligase Gene Family in Grapevine
Published on: December 22, 2017
Related Concept Videos
Overview of Transposition and Recombination
Evolutionary Relationships through Genome Comparisons
Transgenic Plants
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
Cell Signaling in Plants
Export of Mitochondrial and Chloroplast Genes