Valeria Nittoli, Antonio Emidio Fortunato, Giulia Fasano, Ugo Coppola, Alessandra Gentile, Sylvie Maiella, Fernanda Langellotto, Immacolata Porreca, Raffaella De Paolo, Rita Marino, Marcella Fiengo, Aldo Donizetti, Francesco Aniello, Takashi Kondo, Filomena Ristoratore, Lorella M T Canzoniero, Denis Duboule, Stephen W Wilson, Paolo Sordino
{"title":"Characterization of paralogous <i>uncx</i> transcription factor encoding genes in zebrafish.","authors":"Valeria Nittoli, Antonio Emidio Fortunato, Giulia Fasano, Ugo Coppola, Alessandra Gentile, Sylvie Maiella, Fernanda Langellotto, Immacolata Porreca, Raffaella De Paolo, Rita Marino, Marcella Fiengo, Aldo Donizetti, Francesco Aniello, Takashi Kondo, Filomena Ristoratore, Lorella M T Canzoniero, Denis Duboule, Stephen W Wilson, Paolo Sordino","doi":"10.1016/j.gene.2019.100011","DOIUrl":null,"url":null,"abstract":"<p><p>The paired-type homeodomain transcription factor Uncx is involved in multiple processes of embryogenesis in vertebrates. Reasoning that zebrafish genes <i>uncx4.1</i> and <i>uncx</i> are orthologs of mouse <i>Uncx</i>, we studied their genomic environment and developmental expression. Evolutionary analyses indicate the zebrafish <i>uncx</i> genes as being paralogs deriving from teleost-specific whole-genome duplication. Whole-mount <i>in situ</i> mRNA hybridization of <i>uncx</i> transcripts in zebrafish embryos reveals novel expression domains, confirms those previously known, and suggests sub-functionalization of paralogs. Using genetic mutants and pharmacological inhibitors, we investigate the role of signaling pathways on the expression of zebrafish <i>uncx</i> genes in developing somites. In identifying putative functional role(s) of zebrafish <i>uncx</i> genes, we hypothesized that they encode transcription factors that coordinate growth and innervation of somitic muscles.</p>","PeriodicalId":37140,"journal":{"name":"Gene: X","volume":"2 ","pages":"100011"},"PeriodicalIF":0.0000,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6543554/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Gene: X","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1016/j.gene.2019.100011","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Biochemistry, Genetics and Molecular Biology","Score":null,"Total":0}
引用次数: 0
Abstract
The paired-type homeodomain transcription factor Uncx is involved in multiple processes of embryogenesis in vertebrates. Reasoning that zebrafish genes uncx4.1 and uncx are orthologs of mouse Uncx, we studied their genomic environment and developmental expression. Evolutionary analyses indicate the zebrafish uncx genes as being paralogs deriving from teleost-specific whole-genome duplication. Whole-mount in situ mRNA hybridization of uncx transcripts in zebrafish embryos reveals novel expression domains, confirms those previously known, and suggests sub-functionalization of paralogs. Using genetic mutants and pharmacological inhibitors, we investigate the role of signaling pathways on the expression of zebrafish uncx genes in developing somites. In identifying putative functional role(s) of zebrafish uncx genes, we hypothesized that they encode transcription factors that coordinate growth and innervation of somitic muscles.