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Protocol: fine-tuning of a Chromatin Immunoprecipitation (ChIP) protocol in tomato.


ABSTRACT: BACKGROUND:Searching thoroughly for plant cis-elements corresponding to transcription factors is worthwhile to reveal novel gene activation cascades. At the same time, a great deal of research is currently focused on epigenetic events in plants. A widely used method serving both purposes is chromatin immunoprecipitation, which was developed for Arabidopsis and other plants but is not yet operational for tomato (Solanum lycopersicum), a model plant species for a group of economically important crops. RESULTS:We developed a chromatin immunoprecipitation protocol suitable for tomato by adjusting the parameters to optimise in vivo crosslinking, purification of nuclei, chromatin extraction, DNA shearing and precipitate analysis using real-time PCR. Results were obtained with two different antibodies, five control loci and two normalisation criteria. CONCLUSION:Here we provide a chromatin immunoprecipitation procedure for tomato leaves that could be combined with high-throughput sequencing to generate a detailed map of epigenetic modifications or genome-wide nucleosome positioning data.

SUBMITTER: Ricardi MM 

PROVIDER: S-EPMC2859366 | biostudies-literature | 2010 Apr

REPOSITORIES: biostudies-literature

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Protocol: fine-tuning of a Chromatin Immunoprecipitation (ChIP) protocol in tomato.

Ricardi Martiniano M MM   González Rodrigo M RM   Iusem Norberto D ND  

Plant methods 20100409


<h4>Background</h4>Searching thoroughly for plant cis-elements corresponding to transcription factors is worthwhile to reveal novel gene activation cascades. At the same time, a great deal of research is currently focused on epigenetic events in plants. A widely used method serving both purposes is chromatin immunoprecipitation, which was developed for Arabidopsis and other plants but is not yet operational for tomato (Solanum lycopersicum), a model plant species for a group of economically impo  ...[more]

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