The chloroplast genome of the marine green macroalga Ulva fasciata Delile (Ulvophyceae, Chlorophyta).

We present the 96 005 bp circular chloroplast genome (cpDNA) of Ulva fasciata. This cpDNA was ∼4000 bp smaller than the cpDNA of Ulva sp. UNA00071828; however, this cpDNA was AT rich (75.1%) similar to Ulva sp. The U. fasciata cpDNA was also similar in gene content (101 identified genes) compared to Ulva sp., which included 71 protein-coding genes, 3 ribosomal RNAs (rRNAs) and 27 transfer RNAs (tRNAs). Only one tRNA, trnN(AUU), that was present in Ulva sp. was absent in U. fasciata. Five introns were present in the following genes of U. fasciata: petB (2), psbD (1), psaB (1) and rrl (1). Ulva sp. lacked introns in psbD and psaB, and introns present in atpA and psbB in Ulva sp. were absent in the homologous genes of U. fasciata. A gene arrangement comparison of both Ulva species showed that a ∼27 000 bp segment of DNA consisting of genes psbB to trnT(UGU) was inverted. Furthermore, a phylogenetic analysis of 1135 bp of the rbcL gene confirmed that this cpDNA and the previously published mitochondrial genome from this sample were indeed from U. fasciata.