Abstract Daylily (Hemerocallis citrina Borani), a widespread ornamental plant around the world, has been considered as an ideal model to study flower development recently. To initiate the research to comprehensively investigate the molecular mechanism of the flower development of daylily, we performed a transcriptome sequencing study to establish the transcriptional profiles of this plant at different flower developmental stages. Briefly, we divided the flower development of daylily into six stages, and performed transcriptome sequencing for the samples collected from each stage. A total of 56,598 unique transcripts were obtained, of which 35,424 ones (about 62.6%) encode proteins with known functions based on homology searches against well-studied model plants. The expression profiles of these genes showed that 7,395 genes were differentially expressed during flower development. Further functional enrichment analysis for these differentially expressed genes revealed that they are enriched in the processes of translation, oxidation-reduction, and cell wall metabolism, suggesting the critical roles of these processes in daylily flower development.

中文翻译：

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黄花菜（Hemerocallis citrina Borani）花发育相关基因的转录组测序和表达谱

摘要 黄花菜（Hemerocallis citrina Borani）是世界范围内广泛分布的观赏植物，近年来被认为是研究花卉发育的理想模型。为了启动综合研究黄花菜花发育的分子机制的研究，我们进行了转录组测序研究，以建立该植物在不同花发育阶段的转录谱。简而言之，我们将黄花菜的花发育分为六个阶段，并对每个阶段收集的样本进行转录组测序。总共获得了 56,598 个独特的转录本，其中 35,424 个（约 62.6%）编码具有已知功能的蛋白质，这些蛋白质基于对经过充分研究的模式植物的同源性搜索。这些基因的表达谱显示，7、395个基因在花发育过程中差异表达。对这些差异表达基因的进一步功能富集分析表明，它们在翻译、氧化还原和细胞壁代谢过程中富集，表明这些过程在黄花菜花发育中的关键作用。