Abstract
Abstract Previous mapping studies have revealed that the frequency and large size of inverted repeat junction shifts in Apiaceae plastomes are unusual among angiosperms. To further examine plastome structural organization and inverted repeat evolution in the Apiales (Apiaceae + Araliaceae), we have determined the complete plastid genome sequences of five taxa, namely Anthriscus cerefolium (154,719 base pairs), Crithmum maritimum (158,355 base pairs), Hydrocotyle verticillata (153,207 base pairs), Petroselinum crispum (152,890 base pairs), and Tiedemannia filiformis subsp. greenmanii (154,737 base pairs), and compared the results obtained to previously published plastomes of Daucus carota subsp. sativus and Panax schin-seng. We also compared the five Apiaceae plastomes to identify highly variable noncoding loci for future molecular evolutionary and systematic studies at low taxonomic levels. With the exceptions of Crithmum and Petroselinum, which each demonstrate a ∼1.5 kilobase shift of its LSC-IRB juncti...
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