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SmallRNA-seq of Solanum lycopersicum cv M82 WT versus Solanum lycopersicum cv Lukullus bearing the sulfurea epiallele

ABSTRACT: 3 sRNA-seq bioreps of WT and sulfurea samples. The aim of this experiment was to compare sRNA abundance at between the two genotypes with particular interest on SlTAB2 (Solyc02g005200) which has been previously associated with paramutation in the sulfurea background.

INSTRUMENT(S): NextSeq 500

ORGANISM(S): Solanum lycopersicum

SUBMITTER: David Baulcombe

PROVIDER: E-MTAB-10556 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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smallRNA-seq of Solanum lycopersicum bearing the sulfurea epiallele in nrpe1 versus WT

Project description:Plants bearing a sulfurea epiallele (TAB2sulf) were crossed with nrpe1 (largest polV subunit) mutants in Solanum Lycopersicum. 7 plants of a F3 progeny expected to be 100% TAB2sulf and segregating for the nrpe1 mutation were sequenced. 4 plants bear the nrpe1 mutation and 3 plants have NRPE1 WT alleles. The aim of the experiment was to compare sRNA accumulation between nrpe1 and WT F3 plants with particular interest on SlTAB2 (Solyc02g005200) which has been previously associated with paramutation in the sulfurea background. Both WT and nrpe1 F3 plants had methylation levels consistent with the TAB2sulf epiallele. nrpe1 and sulfurea parental controls are added in single replicates and a WT cv M82 plant is also sequenced as control. More replicates of WT and M82 are sequenced in a related experiment.

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Project description:Plants bearing a sulfurea epiallele (TAB2sulf) were crossed with cmt3 mutants in Solanum Lycopersicum. 6 plants of a F2 progeny segregating both for TAB2sulf and cmt3 mutation were sequenced. 4 plants bear the cmt3 mutation and 2 plants have CMT3 WT alleles. the aim of the experiment was to compare sRNA accumulation between cmt3 and WT plants with particular interest on SlTAB2 (Solyc02g005200) which has been previously associated with paramutation in the sulfurea background. The WT plants had methylation levels consistent with the TAB2sulf epiallele and the cmt3 plants had methylation levels consistent with TAB2+ (low DNA methylation). cmt3 and sulfurea parental controls are added in single replicates and a WT cv M82 plant is also sequenced as control. More replicates of WT and M82 are sequenced in a related experiment.

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Project description:Whole genome bisulfite sequencing was done in F3 plants resulting from a cross between Solanum lycopersicum plants bearing the sulfurea epiallele and cmt3 mutants. 6 F3 plants were sequenced: 3 WT and 3 cmt3. The F3 WT plants had methylation levels (quantified with McrBC-qPCR) consistent with the TAB2sulf epiallele and the cmt3 plants had methylation levels consistent with TAB2+ (low DNA methylation). cmt3 mutants from the F2 generation were backcrossed with WT cv M82 plants to restore CMT3 activity and followed for 2 generations (BC2). 4 BC2 plants were sequenced 2 WT and 2 cmt3. The aim of the experiment was to compare DNA methylation levels in all contexts between cmt3 and WT F3 plants with particular interest on SlTAB2 (Solyc02g005200) which has been previously associated with paramutation in the sulfurea background. The stability of DNA methylation upon CMT3 reintroduction was assessed in the BC2 plants. WT cv M82, cmt3 and sulfurea controls were added in single replicates.

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