Visualization of specific repetitive genomic sequences with fluorescent TALEs in<i>Arabidopsis thaliana</i>
書誌事項
- タイトル別名
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- Visualization of specific repetitive genomic sequences with fluorescent TALEs in Arabidopsis thaliana
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説明
Live imaging of the dynamics of nuclear organization provides the opportunity to uncover the mechanisms responsible for four-dimensional genome architecture. Here, we describe the use of fluorescent protein (FP) fusions of transcription activator-like effectors (TALEs) to visualize endogenous genomic sequences in Arabidopsis thaliana. The ability to engineer sequence-specific TALEs permits the investigation of precise genomic sequences. We could detect TALE-FP signals associated with centromeric, telomeric, and rDNA repeats and the signal distribution was consistent with that observed by fluorescent in situ hybridization. TALE-FPs are advantageous because they permit the observation of intact tissues. We used our TALE-FP method to investigate the nuclei of several multicellular plant tissues including roots, hypocotyls, leaves, and flowers. Because TALE-FPs permit live-cell imaging, we successfully observed the temporal dynamics of centromeres and telomeres in plant organs. Fusing TALEs to multimeric FPs enhanced the signal intensity when observing telomeres. We found that the mobility of telomeres was different in sub-nuclear regions. Transgenic plants stably expressing TALE-FPs will provide new insights into chromatin organization and dynamics in multicellular organisms.
収録刊行物
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- Journal of Experimental Botany
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Journal of Experimental Botany 67 (21), 6101-6110, 2016-10-06
Oxford University Press (OUP)
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詳細情報 詳細情報について
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- CRID
- 1050845760768551808
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- NII論文ID
- 120006959746
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- NII書誌ID
- AA00697526
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- ISSN
- 00220957
- 14602431
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- HANDLE
- 2433/217423
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- PubMed
- 27811079
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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- CiNii Articles
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