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Construction of a Full-Length Transcriptome of Western Honeybee Midgut Tissue and Improved Genome Annotation

文献类型： 外文期刊

作者： Zang, He 1 ; Guo, Sijia 1 ; Dong, Shunan 1 ; Song, Yuxuan 1 ; Li, Kunze 1 ; Fan, Xiaoxue 1 ; Qiu, Jianfeng 1 ; Zheng, Yidi 1 ; Jiang, Haibin 4 ; Wu, Ying 4 ; Lu, Yang 5 ; Chen, Dafu 1 ; Guo, Rui 1 ;

作者机构： 1.Fujian Agr & Forestry Univ, Coll Bee Sci & Biomed, Fuzhou 350002, Peoples R China

2.Natl & Local United Engn Lab Nat Biotoxin, Fuzhou 350002, Peoples R China

3.Apitherapy Res Inst Fujian Prov, Fuzhou 350002, Peoples R China

4.Apiculture Sci Inst Jilin Prov, Jilin 132000, Peoples R China

5.Heilongjiang Acad Agr Sci, Mudanjiang Branch, Mudanjiang 157000, Peoples R China

关键词： Apis mellifera; full-length transcriptome; third-generation sequencing; nanopore sequencing; reference genome

期刊名称：GENES （ 影响因子：2.8； 五年影响因子：3.3 ）

ISSN：

年卷期： 2024 年 15 卷 6 期

页码：

收录情况： SCI

摘要： Honeybees are an indispensable pollinator in nature with pivotal ecological, economic, and scientific value. However, a full-length transcriptome for Apis mellifera, assembled with the advanced third-generation nanopore sequencing technology, has yet to be reported. Here, nanopore sequencing of the midgut tissues of uninoculated and Nosema ceranae-inoculated A. mellifera workers was conducted, and the full-length transcriptome was then constructed and annotated based on high-quality long reads. Next followed improvement of sequences and annotations of the current reference genome of A. mellifera. A total of 5,942,745 and 6,664,923 raw reads were produced from midguts of workers at 7 days post-inoculation (dpi) with N. ceranae and 10 dpi, while 7,100,161 and 6,506,665 raw reads were generated from the midguts of corresponding uninoculated workers. After strict quality control, 6,928,170, 6,353,066, 5,745,048, and 6,416,987 clean reads were obtained, with a length distribution ranging from 1 kb to 10 kb. Additionally, 16,824, 17,708, 15,744, and 18,246 full-length transcripts were respectively detected, including 28,019 nonredundant ones. Among these, 43,666, 30,945, 41,771, 26,442, and 24,532 full-length transcripts could be annotated to the Nr, KOG, eggNOG, GO, and KEGG databases, respectively. Additionally, 501 novel genes (20,326 novel transcripts) were identified for the first time, among which 401 (20,255), 193 (13,365), 414 (19,186), 228 (12,093), and 202 (11,703) were respectively annotated to each of the aforementioned five databases. The expression and sequences of three randomly selected novel transcripts were confirmed by RT-PCR and Sanger sequencing. The 5 ' UTR of 2082 genes, the 3 ' UTR of 2029 genes, and both the 5 ' and 3 ' UTRs of 730 genes were extended. Moreover, 17,345 SSRs, 14,789 complete ORFs, 1224 long non-coding RNAs (lncRNAs), and 650 transcription factors (TFs) from 37 families were detected. Findings from this work not only refine the annotation of the A. mellifera reference genome, but also provide a valuable resource and basis for relevant molecular and -omics studies.

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