In mammalian foetal testes, SOX9 regulates expression of its target genes by binding to genomic regions with conserved signatures

Authors
Rahmoun, Massilva; Lavery, Rowena; Laurent-Chaballier, Sabine; Bellora, Nicolás; Philip, Gayle K.; Rossitto, Moïra; Symon, Aleisha; Pailhoux, Eric; Cammas, Florence; Chung, Jessica; Bagheri-Fam, Stefan; Murphy, Mark; Bardwell, Vivian; Zarkower, David; Boizet Bonhoure, Brigitte; Clair, Philippe; Harley, Vincent R.; Poulat, Francis
Publication Year
2017
Language
English
Format
article
Status
Published version
Description
In mammalian embryonic gonads, SOX9 is required for the determination of Sertoli cells that orchestrate testis morphogenesis. To identify genetic networks directly regulated by SOX9, we combined analysis of SOX9-bound chromatin regions from murine and bovine foetal testes with sequencing of RNA samples from mouse testes lacking Sox9. We found that SOX9 controls a conserved genetic programme that involves most of the sex-determining genes. In foetal testes, SOX9 modulates both transcription and directly or indirectly sex-specific differential splicing of its target genes through binding to genomic regions with sequence motifs that are conserved among mammals and that we called 'Sertoli Cell Signature' (SCS). The SCS is characterized by a precise organization of binding motifs for the Sertoli cell reprogramming factors SOX9, GATA4 and DMRT1. As SOX9 biological role in mammalian gonads is to determine Sertoli cells, we correlated this genomic signature with the presence of SOX9 on chromatin in foetal testes, therefore equating this signature to a genomic bar code of the fate of foetal Sertoli cells. Starting from the hypothesis that nuclear factors that bind to genomic regions with SCS could functionally interact with SOX9, we identified TRIM28 as a new SOX9 partner in foetal testes.
Fil: Rahmoun, Massilva. Universite de Montpellier; Francia
Fil: Lavery, Rowena. Monash University; Australia
Fil: Laurent-Chaballier, Sabine. Institut de Recherche En Cancerologie de Montpellier; Francia
Fil: Bellora, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto Andino Patagónico de Tecnologías Biológicas y Geoambientales. Universidad Nacional del Comahue. Instituto Andino Patagónico de Tecnologías Biológicas y Geoambientales.; Argentina
Fil: Philip, Gayle K.. Vlsci; Australia
Fil: Rossitto, Moïra. Universite de Montpellier; Francia
Fil: Symon, Aleisha. Monash University; Australia
Fil: Pailhoux, Eric. Institut National de la Recherche Agronomique; Francia
Fil: Cammas, Florence. Institut de Recherche En Cancerologie de Montpellier; Francia
Fil: Chung, Jessica. Vlsci; Australia
Fil: Bagheri-Fam, Stefan. Monash University; Australia
Fil: Murphy, Mark. University of Minnesota; Estados Unidos
Fil: Bardwell, Vivian. University of Minnesota; Estados Unidos
Fil: Zarkower, David. University of Minnesota; Estados Unidos
Fil: Boizet Bonhoure, Brigitte. Universite de Montpellier; Francia
Fil: Clair, Philippe. Universite de Montpellier; Francia
Fil: Harley, Vincent R.. Monash University; Australia
Fil: Poulat, Francis. Universite de Montpellier; Francia
Subject
Mammalian embryonic
SOX9
Transcription
Splicing
Sequence motifs
ChIP-seq
RNA-seq
Otras Ciencias Biológicas
Ciencias Biológicas
CIENCIAS NATURALES Y EXACTAS
Access level
Open access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/58492