Transcriptomic Analysis of Genes Associated with Stinger Development at Different Life Stages of Apis mellifera
文献类型： 外文期刊
作者： Zhou, Shiwen 1 ; Zhang, Juan 1 ; Yang, Zhenhui 1 ; Fu, Yunxi 1 ; Lai, Yu 1 ; Xu, Xueling 1 ; Xu, Ruixin 1 ; Lu, Yang 1 ; Li, Zhiguo 1 ; Zhao, Ping 2 ; Su, Songkun 1 ; Nie, Hongyi 1 ;
作者机构： 1.Fujian Agr & Forestry Univ, Coll Bee Sci & Biomed, Fuzhou 350002, Peoples R China
2.Southwest Univ, Biol Sci Res Ctr, State Key Lab Resource Insects, Chongqing 400715, Peoples R China
3.Heilongjiang Acad Agr Sci, Mudanjiang Branch, Mudanjiang 157000, Peoples R China
关键词： Apis mellifera; stinger; morphological observation; transcriptome; highly expressed genes; Dll; RNAi; tip bending
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：4.9； 五年影响因子：5.7 ）
ISSN： 1661-6596
年卷期： 2024 年 25 卷 19 期
页码：
收录情况： SCI
摘要： Stingers, evolved from ovipositors, are an important defense organ for the Apidae, Vespidae, and Formicidae species. However, the molecular mechanism of stinger development remains unclear. Here, we show that the earliest time point for the appearance of stingers in Apis mellifera is at the 1-day-old worker pupal stage based on morphological observations and anatomy from the pre-pupal to adult stages. To discover the genes related to stinger development, we first comprehensively compared the stinger transcriptome at different stages and screened 1282, 186, and 166 highly expressed genes in the stingers of 1- and 5-day-old worker pupae and newly emerged worker bees (NEBs), respectively, then identified 25 DEGs involved in the early stage of stinger development. We found that Dll was a key candidate gene in the early development of A. mellifera stingers by combining analyses of the protein-protein interaction network and spatiotemporal expression patterns. An RNAi experiment showed that about 20% of individuals exhibited tip bending in the piercing parts of their stingers in the Dll-dsRNA-treated group, with the morphology presenting as side-side or front-back tip bending. This indicates that Dll plays a vital role in the early development of A. mellifera stingers. Together, our study provides insight into the molecular mechanism of Hymenoptera stinger development and an inspiration for the molecular breeding of gentle honeybee species with stinger abnormalities.
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