Diatoms are microalgae that live in marine and freshwater environments and are responsible for about 20% of the world’s carbon fixation. Population dynamics of these cells is finely regulated by intricate signal transduction systems, in which oxylipins are thought to play a relevant role. These are oxygenated fatty acids whose biosynthesis is initiated by a lipoxygenase enzyme (LOX) and are widely distributed in all phyla, including diatoms. Here, we present a de novo transcriptome obtained from the RNA-seq performed in the diatom species Pseudo-nitzschia arenysensis, using both a wild-type and a LOX-silenced strain, which will represent a reliable reference for comparative analyses within the Pseudo-nitzschia genus and at a broader taxonomic scale. Moreover, the RNA-seq data can be interrogated to go deeper into the oxylipins metabolic pathways.

硅藻是生活在海洋和淡水环境中的微藻，其固碳量约占世界碳固定量的 20%。这些细胞的群体动态受到复杂的信号转导系统的精细调节，其中氧脂素被认为发挥了相关作用。这些是含氧脂肪酸，其生物合成由脂氧合酶 (LOX) 启动，广泛分布于包括硅藻在内的所有门中。在这里，我们展示了从硅藻物种Pseudo-nitzschia arenysensis中使用野生型和 LOX 沉默菌株进行的 RNA 测序获得的从头转录组，这将为伪菱形藻中的比较分析提供可靠的参考。菱形藻属和更广泛的分类学范围。此外，可以查询 RNA-seq 数据以更深入地了解氧脂质代谢途径。