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Elucidation of stress memory inheritance through epigenome alterations in Brassica rapa plants [RNA-seq]

ABSTRACT: In the current study we have profiled changes in the transcriptome of somatic and reproductive tissues of B.rapa plants following heat shock stress exposure. For this we used Illumina GAIIx platform. We have demonstrated that the highest tissue-specific alterations in the transcriptome profile are detected in tissues that were not directly exposed to stress, namely, in the endosperm and pollen. The progeny of exposed plants also exhibited significant alterations in the gene expression as compared to progeny of control plants. Overall design: The transcriptome profile was assessed after heat shock treatment in the following tissues of Brassica rapa plants: parental leaves, inflorescence meristem, pollen, unfertilized ovules, 24-hour post-fertilization ovules, embryo, endosperm and leaf tissues of progeny plants. Please note that *diff_out.tar.gz contains all the standard output produced by cuffmerge and cuffdiff and each file content/format details are provided in the 'README.txt' file

INSTRUMENT(S): Illumina Genome Analyzer IIx

ORGANISM(S): Brassica rapa

SUBMITTER: Igor Kovalchuk 

PROVIDER: E-MTAB-4131 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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The elucidation of stress memory inheritance in Brassica rapa plants.

Bilichak Andriy A   Ilnytskyy Yaroslav Y   Wóycicki Rafal R   Kepeshchuk Nina N   Fogen Dawson D   Kovalchuk Igor I  

Frontiers in plant science 20150121

Plants are able to maintain the memory of stress exposure throughout their ontogenesis and faithfully propagate it into the next generation. Recent evidence argues for the epigenetic nature of this phenomenon. Small RNAs (smRNAs) are one of the vital epigenetic factors because they can both affect gene expression at the place of their generation and maintain non-cell-autonomous gene regulation. Here, we have made an attempt to decipher the contribution of smRNAs to the heat-shock-induced transge  ...[more]

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