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

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Sammanfattning

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.
Originalspråkengelska
TidskriftSpringerPlus
Volym2
Sidor (från-till)459
ISSN2193-1801
StatusPublicerad - 2013
MoE-publikationstypA1 Tidskriftsartikel-refererad

Vetenskapsgrenar

  • 1181 Ekologi, evolutionsbiologi

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