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

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.

Comparative Chloroplast Genomics Reveals a Unique Gene Inversion in Two Cordia Trees (Cordiaceae)

“…In this research, we presented the plastomes of two taxa belonging to the Cordiaceae. The plastomes of C. monoica and C. sinensis structurally resembled the plastomes of other Boraginales species [54,55]. The plastome sizes of C. monoica and C. sinensis ranged from 151,813 bp to 152,050 bp, respectively (Figure 1).…”

Complete Chloroplast Genome Sequences of Two Ehretia Trees (Ehretia cymosa and Ehretia obtusifolia): Genome Structures and Phylogenetic Analysis

“…In the present study, we report the cp genomes of two species from the Ehretia genus. The cp genomes of E. cymosa and E. obtusifolia were found to be structurally similar to the cp genomes of other Boraginales species [48][49][50]. The cp genome sizes ranged from 156,328…”