FN Archimer Export Format PT J TI Dosage Compensation throughout the Schistosoma mansoni Lifecycle: Specific Chromatin Landscape of the Z Chromosome BT AF PICARD, Marion A. L. VICOSO, Beatriz ROQUIS, David BULLA, Ingo AUGUSTO, Ronaldo C. ARANCIBIA, Nathalie GRUNAU, Christoph BOISSIER, Jerome COSSEAU, Celine AS 1:2,3;2:2;3:3;4:1;5:1;6:3;7:3;8:3;9:3; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:; C1 Univ Montpellier, Univ Perpignan Via Domitia, IFREMER, IHPE,UMR 5244,CNRS, Perpignan, France. IST Austria, Klosterneuburg, Austria. C2 CNRS, FRANCE IST AUSTRIA, AUSTRIA UNIV PERPIGNAN, FRANCE UM IHPE IN WOS Cotutelle UMR DOAJ copubli-europe IF 3.462 TC 8 UR https://archimer.ifremer.fr/doc/00514/62580/66929.pdf https://archimer.ifremer.fr/doc/00514/62580/66930.pdf https://archimer.ifremer.fr/doc/00514/62580/66931.pdf https://archimer.ifremer.fr/doc/00514/62580/66932.pdf LA English DT Article DE ;dosage compensation;chromatin landscape;histone modifications;female heterogamety;Schistosoma mansoni AB Differentiated sex chromosomes are accompanied by a difference in gene dose between X/Z-specific and autosomal genes. At the transcriptomic level, these sex-linked genes can lead to expression imbalance, or gene dosage can be compensated by epigenetic mechanisms and results into expression level equalization. Schistosoma mansoni has been previously described as a ZW species (i.e., female heterogamety, in opposition to XY male heterogametic species) with a partial dosage compensation, but underlying mechanisms are still unexplored. Here, we combine transcriptomic (RNA-Seq) and epigenetic data (ChIP-Seq against H3K4me3, H3K27me3, and H4K20me1 histone marks) in free larval cercariae and intravertebrate parasitic stages. For the first time, we describe differences in dosage compensation status in ZW females, depending on the parasitic status: free cercariae display global dosage compensation, whereas intravertebrate stages show a partial dosage compensation. We also highlight regional differences of gene expression along the Z chromosome in cercariae, but not in the intravertebrate stages. Finally, we feature a consistent permissive chromatin landscape of the Z chromosome in both sexes and stages. We argue that dosage compensation in schistosomes is characterized by chromatin remodeling mechanisms in the Z-specific region. PY 2019 PD JUN SO Genome Biology And Evolution SN 1759-6653 PU Oxford Univ Press VL 11 IS 7 UT 000484039500018 BP 1909 EP 1922 DI 10.1093/gbe/evz133 ID 62580 ER EF