Discovery of novel plastid phenylalanine (trnF) pseudogenes defines a distinctive clade in Solanaceae

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Poczai , P & Hyvönen , J 2013 , ' Discovery of novel plastid phenylalanine (trnF) pseudogenes defines a distinctive clade in Solanaceae ' , SpringerPlus , vol. 2 , pp. 459 . < http://www.springerplus.com/content/2/1/459/abstract >

Title: Discovery of novel plastid phenylalanine (trnF) pseudogenes defines a distinctive clade in Solanaceae
Author: Poczai, Péter; Hyvönen, Jaakko
Contributor: University of Helsinki, Biosciences
University of Helsinki, Biosciences
Date: 2013
Language: eng
Belongs to series: SpringerPlus
ISSN: 2193-1801
URI: http://hdl.handle.net/10138/42969
Abstract: Background The plastome of embryophytes is known for its high degree of conservation in size, structure, gene content and linear order of genes. The duplication of entire tRNA genes or their arrangement in a tandem array composed by multiple pseudogene copies is extremely rare in the plastome. Pseudogene repeats of the trnF gene have rarely been described from the chloroplast genome of angiosperms. Findings We report the discovery of duplicated copies of the original phenylalanine (trnFGAA) gene in Solanaceae that are specific to a larger clade within the Solanoideae subfamily. The pseudogenic copies are composed of several highly structured motifs that are partial residues or entire parts of the anticodon, T- and D-domains of the original trnF gene. Conclusions The Pseudosolanoid clade consists of 29 genera and includes many economically important plants such as potato, tomato, eggplant and pepper.
Subject: 1181 Ecology, evolutionary biology
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