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Wang M, Chen D, Zheng H, Zhao L, Xue X, Yu F, Zhang Y, Cheng C, Niu Q, Wang S, Zhang Y, Wu L. Sex-Specific Development in Haplodiploid Honeybee Is Controlled by the Female-Embryo-Specific Activation of Thousands of Intronic LncRNAs. Front Cell Dev Biol 2021; 9:690167. [PMID: 34422813 PMCID: PMC8377728 DOI: 10.3389/fcell.2021.690167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 07/12/2021] [Indexed: 11/13/2022] Open
Abstract
Embryonic development depends on a highly coordinated shift in transcription programs known as the maternal-to-zygotic transition (MZT). It remains unclear how haploid and diploid embryo coordinate their genomic activation and embryonic development during MZT in haplodiploid animals. Here, we applied a single-embryo RNA-seq approach to characterize the embryonic transcriptome dynamics in haploid males vs. diploid females of the haplodiploid insect honeybee (Apis mellifera). We observed typical zygotic genome activation (ZGA) occurred in three major waves specifically in female honeybee embryos; haploid genome activation was much weaker and occurred later. Strikingly, we also observed three waves of transcriptional activation for thousands of long non-coding transcripts (lncRNA), 73% of which are transcribed from intronic regions and 65% were specific to female honeybee embryos. These findings support a model in which introns encode thousands of lncRNAs that are expressed in a diploid-embryo-specific and ZGA-triggered manner that may have potential functions to regulate gene expression during early embryonic development in the haplodiploid insect honeybee.
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Affiliation(s)
- Miao Wang
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Dong Chen
- ABLife BioBigData Institute, Wuhan, China.,Laboratory for Genome Regulation and Human Health, ABLife Inc., Wuhan, China
| | - Huoqing Zheng
- College of Animal Science, Zhejiang University, Hangzhou, China
| | - Liuwei Zhao
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiaofeng Xue
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Fengyun Yu
- Laboratory for Genome Regulation and Human Health, ABLife Inc., Wuhan, China
| | - Yu Zhang
- ABLife BioBigData Institute, Wuhan, China
| | - Chao Cheng
- ABLife BioBigData Institute, Wuhan, China
| | - Qingsheng Niu
- Department of Scientific Research, Jilin Province Institute of Apicultural Science, Jilin, China
| | - Shuai Wang
- College of Animal Science, Zhejiang University, Hangzhou, China
| | - Yi Zhang
- ABLife BioBigData Institute, Wuhan, China.,Laboratory for Genome Regulation and Human Health, ABLife Inc., Wuhan, China
| | - Liming Wu
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
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