Binglong Zhang, Hong Duan, Joshua Kavaler, Lu Wei, Daniel F. Eberl, Eric C. Lai
{"title":"A nonneural miRNA cluster mediates hearing via repression of two neural targets","authors":"Binglong Zhang, Hong Duan, Joshua Kavaler, Lu Wei, Daniel F. Eberl, Eric C. Lai","doi":"10.1101/gad.351052.123","DOIUrl":null,"url":null,"abstract":"We show here that <em>mir-279/996</em> are absolutely essential for development and function of Johnston's organ (JO), the primary proprioceptive and auditory organ in <em>Drosophila</em>. Their deletion results in highly aberrant cell fate determination, including loss of scolopale cells and ectopic neurons, and mutants are electrophysiologically deaf. In vivo activity sensors and mosaic analyses indicate that these seed-related miRNAs function autonomously to suppress neural fate in nonneuronal cells. Finally, genetic interactions pinpoint two neural targets (<em>elav</em> and <em>insensible</em>) that underlie miRNA mutant JO phenotypes. This work uncovers how critical post-transcriptional regulation of specific miRNA targets governs cell specification and function of the auditory system.","PeriodicalId":12591,"journal":{"name":"Genes & development","volume":null,"pages":null},"PeriodicalIF":7.5000,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Genes & development","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1101/gad.351052.123","RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CELL BIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
We show here that mir-279/996 are absolutely essential for development and function of Johnston's organ (JO), the primary proprioceptive and auditory organ in Drosophila. Their deletion results in highly aberrant cell fate determination, including loss of scolopale cells and ectopic neurons, and mutants are electrophysiologically deaf. In vivo activity sensors and mosaic analyses indicate that these seed-related miRNAs function autonomously to suppress neural fate in nonneuronal cells. Finally, genetic interactions pinpoint two neural targets (elav and insensible) that underlie miRNA mutant JO phenotypes. This work uncovers how critical post-transcriptional regulation of specific miRNA targets governs cell specification and function of the auditory system.
期刊介绍：
Genes & Development is a research journal published in association with The Genetics Society. It publishes high-quality research papers in the areas of molecular biology, molecular genetics, and related fields. The journal features various research formats including Research papers, short Research Communications, and Resource/Methodology papers.
Genes & Development has gained recognition and is considered as one of the Top Five Research Journals in the field of Molecular Biology and Genetics. It has an impressive Impact Factor of 12.89. The journal is ranked #2 among Developmental Biology research journals, #5 in Genetics and Heredity, and is among the Top 20 in Cell Biology (according to ISI Journal Citation Reports®, 2021).
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