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Analysis of Small RNA Populations Using Hybridization to DNA Tiling Arrays

 Last Update: 2021-01-14
 Source: Internet
 Author: User

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Small RNA (sRNA) populations extracted from Arabidopsis plants submitted or not to biotic stress, were reverse-transcribed into c
DNA
s, and these were subsequently hybridized after labelling to a custom-made DNA tiling array covering Arabidopsis chromosome 4. We first designed a control experiment with eight
cDNA
clones corresponding to sequences located on chromosome 4 and obtained robust and specific hybridization signals. Furthermore, hybridization signals along chromosome 4 were in good agreement with sRNA abundance as previously determined by Massive Parallel Sequence Signature (MPSS) in the case of untreated plants, but differed substantially after stress treatment. These results demonstrate the utility of hybridization to DNA tiling arrays to detect major changes in small RNA populations.

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