State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
Key Laboratory of Forest Disaster Warning and Control in Yunnan Province, College of Biodiversity Conservation, Southwest Forestry University, Kunming, 650224, China.
Sci Data. 2024 Jun 17;11(1):639. doi: 10.1038/s41597-024-03502-x.
The cottony cushion scale, Icerya purchasi, a polyphagous pest, poses a significant threat to the global citrus industry. The hermaphroditic self-fertilization observed in I. purchasi is an exceptionally rare reproductive mode among insects. In this study, we successfully assembled a chromosome-level genome sequence for I. purchasi using PacBio long-reads and the Hi-C technique, resulting in a total size of 1,103.38 Mb and a contig N50 of 12.81 Mb. The genome comprises 14,046 predicted protein-coding genes, with 462,722,633 bp occurrence of repetitive sequences. BUSCO analysis revealed a completeness score of 93.20%. The genome sequence of I. purchasi serves as a crucial resource for comprehending the reproductive modes in insects, with particular emphasis on hermaphroditic self-fertilization.
棉垫蚧（Icerya purchasi）是一种多食性害虫，对全球柑橘产业构成了重大威胁。在 I. purchasi 中观察到的雌雄同体自受精是昆虫中一种极其罕见的繁殖方式。在这项研究中，我们使用 PacBio 长读长和 Hi-C 技术成功组装了 I. purchasi 的染色体水平基因组序列，总大小为 1,103.38 Mb，Contig N50 为 12.81 Mb。该基因组包含 14,046 个预测的蛋白质编码基因，重复序列出现的总长度为 462,722,633 bp。BUSCO 分析显示完整性评分为 93.20%。I. purchasi 的基因组序列是理解昆虫繁殖模式的重要资源，特别关注雌雄同体自受精。
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