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Supernetwork identifies multiple events of plastid trnF(GAA) pseudogene evolution in the Brassicaceae.
Mol Biol Evol 2007; 24(1):63-73MB

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.

Authors+Show Affiliations

Heidelberg Institute for Plant Science, Biodiversity and Plant Systematics, Heidelberg University, Heidelberg, Germany. marcus.koch@urz.uni-heidelberg.deNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16987951

Citation

Koch, Marcus A., et al. "Supernetwork Identifies Multiple Events of Plastid trnF(GAA) Pseudogene Evolution in the Brassicaceae." Molecular Biology and Evolution, vol. 24, no. 1, 2007, pp. 63-73.
Koch MA, Dobes C, Kiefer C, et al. Supernetwork identifies multiple events of plastid trnF(GAA) pseudogene evolution in the Brassicaceae. Mol Biol Evol. 2007;24(1):63-73.
Koch, M. A., Dobes, C., Kiefer, C., Schmickl, R., Klimes, L., & Lysak, M. A. (2007). Supernetwork identifies multiple events of plastid trnF(GAA) pseudogene evolution in the Brassicaceae. Molecular Biology and Evolution, 24(1), pp. 63-73.
Koch MA, et al. Supernetwork Identifies Multiple Events of Plastid trnF(GAA) Pseudogene Evolution in the Brassicaceae. Mol Biol Evol. 2007;24(1):63-73. PubMed PMID: 16987951.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Supernetwork identifies multiple events of plastid trnF(GAA) pseudogene evolution in the Brassicaceae. AU - Koch,Marcus A, AU - Dobes,Christoph, AU - Kiefer,Christiane, AU - Schmickl,Roswitha, AU - Klimes,Leos, AU - Lysak,Martin A, Y1 - 2006/09/20/ PY - 2006/9/22/pubmed PY - 2007/4/3/medline PY - 2006/9/22/entrez SP - 63 EP - 73 JF - Molecular biology and evolution JO - Mol. Biol. Evol. VL - 24 IS - 1 N2 - 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. SN - 0737-4038 UR - https://www.unboundmedicine.com/medline/citation/16987951/Supernetwork_identifies_multiple_events_of_plastid_trnF_GAA__pseudogene_evolution_in_the_Brassicaceae_ L2 - https://academic.oup.com/mbe/article-lookup/doi/10.1093/molbev/msl130 DB - PRIME DP - Unbound Medicine ER -