The Wnt gene family plays essential roles in regulating many developmental processes, including the maintenance of stem cells, cell division, and cell migration. The number of Wnt genes varies among species. Due to the diversity and importance of their functions, the Wnt gene family has gained extensive research interest in various animal species from invertebrates to vertebrates. However, knowledge of the Wnt gene family is limited in rice planthoppers. Three planthopper species, the white-backed planthopper (Sogatella furcifera Horvath), the small brown planthopper (Laodelphax striatellus Fallén) and the brown planthopper (Nilaparvata lugens Stål) (Hemiptera: Delphacidae), are devastating specialist pests of rice and cause serious damage to rice plants. To better study the evolution and function of the Wnt gene family in rice planthoppers, we identified 8 Wnt family genes in three rice planthoppers with both genomic and extensive transcriptomic resources available. We conducted a systematic analysis of the three kinds of rice planthoppers and analyzed the dynamic patterns of gene conservation, as well as Wnt gene loss and duplication. The expression profiles in different developmental stages of S. furcifera and different adult organs and tissues of L. striatellus provide preliminary functional implications for the Wnt genes in rice planthopper. This study presents the first genome-wide study of the Wnt gene family in rice planthoppers, and our findings provide insights into Wnt function and evolution in rice planthoppers.

中文翻译：

---

三种稻飞虱 Wnt 基因家族的全基因组鉴定和表达谱：白背飞虱、灰飞虱和褐飞虱


Wnt 基因家族在调节许多发育过程中发挥着重要作用，包括干细胞的维持、细胞分裂和细胞迁移。 Wnt 基因的数量因物种而异。由于其功能的多样性和重要性，Wnt 基因家族在从无脊椎动物到脊椎动物的各种动物物种中获得了广泛的研究兴趣。然而，对稻飞虱 Wnt 基因家族的了解有限。三种稻飞虱，即白背飞虱 (Sogatella curcifera Horvath)、小褐飞虱 (Laodelphax striatellus Fallén) 和褐飞虱 (Nilaparvata lugens Stål)（半翅目：飞虱科），是水稻的毁灭性专害虫，对水稻造成严重损害。水稻植物。为了更好地研究稻飞虱Wnt基因家族的进化和功能，我们利用基因组和广泛的转录组资源，在三种稻飞虱中鉴定了8个Wnt家族基因。我们对三种稻飞虱进行了系统分析，分析了基因保守的动态模式以及Wnt基因的丢失和重复。白背飞虱和灰飞虱成体不同器官和组织的表达谱为稻飞虱Wnt基因的功能提供了初步的启示。这项研究首次对稻飞虱 Wnt 基因家族进行全基因组研究，我们的研究结果为了解稻飞虱 Wnt 功能和进化提供了见解。