The complete plastome of Echium plantagineum L. (Boraginaceae), the first chloroplast genome belonging to the Echium genus

Mitochondrial DNA B Resour. 2022 Jun 24;7(6):1154-1156. doi: 10.1080/23802359.2022.2087559. eCollection 2022.

Abstract

Besides being a common weed, the presence of Echium plantagineum L. in food and feed commodities can represent a safety hazard due to their content in pyrrolizidine alkaloids. In this study, the complete chloroplast of E. plantagineum isolate BPTPS251 is described, being the first available plastome from an isolate belonging to the Echium genus. The chloroplast genome is 149,776 bp in length with 37.5% GC content, displaying a quadripartite structure that contains a pair of inverted repeats regions (25,754 bp each), separated by a large single-copy (80,978 bp) and a small single-copy (17,290 bp) regions. A total of 131 genes were predicted, including 37 tRNA genes, 8 rRNA genes, and 86 protein-coding genes. The phylogenetic analysis confirmed the placement of E. plantagineum under the Boraginaceae family, belonging to the Boraginales order. This study will contribute to conservation, phylogenetic, and evolutionary studies, as well as DNA barcoding applications for food and feed safety purposes.

Keywords: Boraginaceae; Echium plantagineum; Illumina MiSeq sequencing; complete chloroplast genome; phylogenetic analysis.

Grants and funding

Conducted under the project ‘barcodingPTplants – DNA barcoding aromatic, medicinal, and condiment plants from Portugal’ [02/SAICT/2017 nº 31074] financed by Programa Lisboa 2020, Portugal 2020, and the European Union, through the European Regional Development Fund (ERDF), and with the support of INCD funded by FCT and ERDF [01/SAICT/2016 n° 022153]. Funding from INTERFACE Programme, through the Innovation, Technology and Circular Economy Fund (FITEC), is gratefully acknowledged, as well as iNOVA4Health (UIDB/04462/2020 and UIDP/04462/2020) and the Associate Laboratory LS4FUTURE (LA/P/0087/2020), programs financially supported by FCT-MCTES.