PMID- 29750268 OWN - NLM STAT- MEDLINE DCOM- 20190730 LR - 20190730 IS - 1362-4962 (Electronic) IS - 0305-1048 (Print) IS - 0305-1048 (Linking) VI - 46 IP - 14 DP - 2018 Aug 21 TI - Inferring and modeling inheritance of differentially methylated changes across multiple generations. PG - e85 LID - 10.1093/nar/gky362 [doi] AB - High-throughput methylation sequencing enables genome-wide detection of differentially methylated sites (DMS) or regions (DMR). Increasing evidence suggests that treatment-induced DMS can be transmitted across generations, but the analysis of induced methylation changes across multiple generations is complicated by the lack of sound statistical methods to evaluate significance levels. Due to software design, DMS detection was usually made on each generation separately, thus disregarding stochastic effects expected when a large number of DMS is detected in each generation. Here, we present a novel method based on Monte Carlo sampling, methylInheritance, to evaluate that the number of conserved DMS between several generations is associated to an effect inherited from a treatment and not randomness. Moreover, we developed an inheritance simulation package, methInheritSim, to demonstrate the performance of the methylInheritance method and to evaluate the power of different experimental designs. Finally, we applied methylInheritance to a DNA methylation dataset obtained from early-life persistent organic pollutants (POPs) exposed Sprague-Dawley female rats and their descendants through a paternal transmission. The results show that metylInheritance can efficiently identify treatment-induced inherited methylation changes. Specifically, we identified two intergenerationally conserved DMS at transcription start site (TSS); one of those persisted transgenerationally. Three transgenerationally conserved DMR were found at intra or integenic regions. FAU - Belleau, Pascal AU - Belleau P AD - Departement de Medecine Moleculaire - Universite Laval, Faculte de medecine, Pavillon Ferdinand-Vandry, 1050 avenue de la Medecine, bureau 4633, Quebec, QC G1V 0A6, Canada. FAU - Deschenes, Astrid AU - Deschenes A AD - Centre de Recherche du CHU de Quebec - Universite Laval, 2705 boulevard Laurier, Quebec, QC G1V 4G2, Canada. FAU - Scott-Boyer, Marie-Pier AU - Scott-Boyer MP AD - Centre de Recherche du CHU de Quebec - Universite Laval, 2705 boulevard Laurier, Quebec, QC G1V 4G2, Canada. FAU - Lambrot, Romain AU - Lambrot R AD - Department of Animal Sciences, McGill University, Ste. Anne de Bellevue, Quebec, H9 x 3V9 Canada and Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec H3G 1Y6, Canada. FAU - Dalvai, Mathieu AU - Dalvai M AD - Centre de recherche en reproduction, developpement et sante intergenerationnelle - Universite Laval, Faculte des sciences de l'agriculture et de l'alimentation, Pavillon Paul-Comtois, 2425 rue de l'Agriculture, Quebec, QC G1V 0A6, Canada. FAU - Kimmins, Sarah AU - Kimmins S AD - Department of Animal Sciences, McGill University, Ste. Anne de Bellevue, Quebec, H9 x 3V9 Canada and Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec H3G 1Y6, Canada. FAU - Bailey, Janice AU - Bailey J AD - Centre de recherche en reproduction, developpement et sante intergenerationnelle - Universite Laval, Faculte des sciences de l'agriculture et de l'alimentation, Pavillon Paul-Comtois, 2425 rue de l'Agriculture, Quebec, QC G1V 0A6, Canada. FAU - Droit, Arnaud AU - Droit A AD - Departement de Medecine Moleculaire - Universite Laval, Faculte de medecine, Pavillon Ferdinand-Vandry, 1050 avenue de la Medecine, bureau 4633, Quebec, QC G1V 0A6, Canada. AD - Centre de Recherche du CHU de Quebec - Universite Laval, 2705 boulevard Laurier, Quebec, QC G1V 4G2, Canada. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Nucleic Acids Res JT - Nucleic acids research JID - 0411011 RN - 0 (Environmental Pollutants) EIN - Nucleic Acids Res. 2018 Aug 21;46(14):7466. PMID: 29788315 MH - Animals MH - Computer Simulation MH - *DNA Methylation MH - Environmental Pollutants MH - Epigenesis, Genetic MH - Female MH - *Inheritance Patterns MH - Male MH - Models, Genetic MH - Monte Carlo Method MH - Rats, Sprague-Dawley PMC - PMC6101575 EDAT- 2018/05/12 06:00 MHDA- 2019/07/31 06:00 PMCR- 2018/05/10 CRDT- 2018/05/12 06:00 PHST- 2018/01/18 00:00 [received] PHST- 2018/04/24 00:00 [accepted] PHST- 2018/05/12 06:00 [pubmed] PHST- 2019/07/31 06:00 [medline] PHST- 2018/05/12 06:00 [entrez] PHST- 2018/05/10 00:00 [pmc-release] AID - 4994677 [pii] AID - gky362 [pii] AID - 10.1093/nar/gky362 [doi] PST - ppublish SO - Nucleic Acids Res. 2018 Aug 21;46(14):e85. doi: 10.1093/nar/gky362.