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AChIP: efficient, sensitive, robust ChIP-seq for economically important plant organs

ABSTRACT: aChIP: efficient, sensitive, robust ChIP-seq for economically important plant organs

PROVIDER: PRJNA1020073 | ENA |

REPOSITORIES: ENA

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aChIP: efficient, sensitive, robust ChIP-seq for economically important plant organs [RNA-Seq]

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Project description:Chromatin immunoprecipitation followed by sequencing (ChIP-seq) is crucial for profiling histone modifications and transcription factor binding throughout the genome. However, its application in economically important plant organs (EIPOs) such as seeds, fruits and flowers is challenging due to their sturdy cell walls and complex constituents. Here we present advanced ChIP (aChIP), an optimized method that efficiently isolates chromatin from plant tissues while simultaneously removing cell walls and cellular constituents. aChIP precisely profiles histone modifications in all 14 tested EIPOs and identifies transcription factor and chromatin-modifying enzyme binding sites. In addition, aChIP enhances ChIP efficiency, revealing numerous novel modified sites compared with previous methods in vegetative tissues. aChIP reveals the histone modification landscape for rapeseed dry seeds, highlighting the intricate roles of chromatin dynamics during seed dormancy and germination. Altogether, aChIP is a powerful, efficient and sensitive approach for comprehensive chromatin profiling in virtually all plant tissues, especially in EIPOs.

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Project description:Chromatin immunoprecipitation followed by sequencing (ChIP-seq) is a powerful method for profiling histone modifications and transcription factors binding throughout the genome. However, its application in economically important plant organs (EIPOs) such as seeds, fruits, tubers and flowers is challenging due to their sturdy cell walls and complex constituents. Here, we present advanced ChIP (aChIP), an optimized ChIP-seq strategy that efficiently isolates chromatin from plant tissues while simultaneously removing plant cell walls and cellular constituents. aChIP enables precise profiling of histone modifications in all tested EIPOs as well as transcription factors and chromatin-modifying enzymes. Notably, it significantly enhances ChIP efficiency and uncovers numerous novel modified sites compared to previous methods in vegetativetissues. Remarkably, aChIP unveils the first histone modification landscape of dry rapeseed seeds, illuminating the intricate roles of histone marks in EIPOs. Together, aChIP is a potent, efficient, and sensitive approach for comprehensive chromatin protein profiling across virtually all plant tissues, advancing plant epigenomics and functional genomics research, particularly within EIPOs.

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