The genus Limonium, commonly known as Sea Lavenders, is one of the most species-rich genera of the family Plumbaginaceae. In this study, two new plastomes for the genus Limonium, viz. L. tetragonum and L. bicolor, were sequenced and compared to available Limonium plastomes, viz. L. aureum and L. tenellum, to understand the gene content and structural variations within the family. The loss of the rpl16 intron and pseudogenisation of rpl23 was observed. This study reports, for the first time, expansion of the IRs to include the ycf1 gene in Limonium plastomes, incongruent with previous studies. Two positively selected genes, viz. ndhF and ycf2, were identified. Furthermore, putative barcodes are proposed for the genus, based on the nucleotide diversity of four Limonium plastomes.

中文翻译：

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Plastome分析揭示了海薰衣草（柠檬草，铅皮科，柠檬草科，柠檬草科）中的反向重复（IR）扩增和阳性选择

柠檬草属（Limonium）属俗称海薰衣草（La薰衣草属），是铅木科中物种最多的属之一。在这项研究中，为柠檬属的两个新的质体。对L.tetragonum和L. bicolor进行测序，并与可用的Limonium plastomes进行比较。L. aureum和L. tenellum，以了解该家族中的基因含量和结构变异。观察到rpl16内含子的丢失和rpl23的假基因化。这项研究首次报道了IR的扩展，以将ycf1基因包括在Limonium质体组中，这与以前的研究不一致。两个积极选择的基因，即。确定了ndhF和ycf2。此外，基于四个Limonium质体组的核苷酸多样性，为该属提出了假定的条形码。