Characterization of the complete chloroplast genome of leek Allium porrum L. (Amaryllidaceae)

Abstract

The complete chloroplast genome sequence of Allium porrum was determined by Illumina single-end sequencing. The complete plastid genome was 152,732 bp in length containing a large single copy (LSC) of 81,744 bp and a small single copy (SSC) of 17,910 bp, which were separated by a pair of 26,524 bp inverted repeats (IRs). A total of 133 genes were annotated, including 80 protein-coding genes, 38 tRNA genes, 8 rRNA genes, and 7 pseudogenes. The overall GC contents of the plastid genome were 36.7%. Unlike A. sativum and A. obliquum in the leek, plastome infA gene is absent, and rpl23 gene is a pseudogene due to a 4 bp deletion and the formation of a premature stop codon.