<i>CURLED LATER1</i> encoding the largest subunit of the Elongator complex has a unique role in leaf development and meristem function in rice
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- Hikari Matsumoto
- School of Science The University of Tokyo Hongo, Bunkyo‐ku Tokyo 113‐8654 Japan
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- Yukiko Yasui
- School of Science The University of Tokyo Hongo, Bunkyo‐ku Tokyo 113‐8654 Japan
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- Yoshihiro Ohmori
- Graduate School of Agricultural and Life Sciences The University of Tokyo Yayoi, Bunkyo‐ku Tokyo 113‐8657 Japan
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- Wakana Tanaka
- School of Science The University of Tokyo Hongo, Bunkyo‐ku Tokyo 113‐8654 Japan
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- Tetsuya Ishikawa
- NARO Kannondai 2‐1‐2 Tsukuba 305‐8518 Japan
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- Hisataka Numa
- NARO Kannondai 2‐1‐2 Tsukuba 305‐8518 Japan
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- Kenta Shirasawa
- NARO Kannondai 2‐1‐2 Tsukuba 305‐8518 Japan
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- Yojiro Taniguchi
- NARO Kannondai 2‐1‐2 Tsukuba 305‐8518 Japan
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- Junichi Tanaka
- NARO Kannondai 2‐1‐2 Tsukuba 305‐8518 Japan
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- Yasuhiro Suzuki
- NARO Kannondai 2‐1‐2 Tsukuba 305‐8518 Japan
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- Hiro‐Yuki Hirano
- School of Science The University of Tokyo Hongo, Bunkyo‐ku Tokyo 113‐8654 Japan
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説明
<jats:title>SUMMARY</jats:title><jats:p>The Elongator complex, which is conserved in eukaryotes, has multiple roles in diverse organisms. In <jats:italic>Arabidopsis thaliana</jats:italic>, Elongator is shown to be involved in development, hormone action and environmental responses. However, except for Arabidopsis, our knowledge of its function is poor in plants. In this study, we initially carried out a genetic analysis to characterize a rice mutant with narrow and curled leaves, termed <jats:italic>curled later1</jats:italic> (<jats:italic>cur1</jats:italic>). The <jats:italic>cur1</jats:italic> mutant displayed a heteroblastic change, whereby the mutant leaf phenotype appeared specifically at a later adult phase of vegetative development. The shoot apical meristem (SAM) was small and the leaf initiation rate was low, suggesting that the activity of the SAM seemed to be partially reduced in <jats:italic>cur1</jats:italic>. We then revealed that <jats:italic>CUR1</jats:italic> encodes a yeast ELP1‐like protein, the largest subunit of Elongator. Furthermore, disruption of <jats:italic>OsELP3</jats:italic> encoding the catalytic subunit of Elongator resulted in phenotypes similar to those of <jats:italic>cur1</jats:italic>, including the timing of the appearance of mutant phenotypes. Thus, Elongator activity seems to be specifically required for leaf development at the late vegetative phase. Transcriptome analysis showed that genes involved in protein quality control were highly upregulated in the <jats:italic>cur1</jats:italic> shoot apex at the later vegetative phase, suggesting the restoration of impaired proteins probably produced by partial defects in translational control due to the loss of function of Elongator. The differences in the mutant phenotype and gene expression profile between <jats:italic>CUR1</jats:italic> and its Arabidopsis ortholog suggest that Elongator has evolved to play a unique role in rice development.</jats:p>
収録刊行物
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- The Plant Journal
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The Plant Journal 104 (2), 351-364, 2020-07-31
Wiley
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キーワード
- Saccharomyces cerevisiae Proteins
- Gene Expression Profiling
- Meristem
- Oryza
- Original Articles
- Peptide Elongation Factors
- Plants, Genetically Modified
- Plant Leaves
- Gene Knockout Techniques
- Protein Subunits
- Phenotype
- Gene Expression Regulation, Plant
- Multiprotein Complexes
- Mutation
- Histone Acetyltransferases
- Plant Proteins
詳細情報 詳細情報について
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- CRID
- 1360572092819174144
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- ISSN
- 1365313X
- 09607412
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- PubMed
- 32652697
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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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- Crossref
- KAKEN
- OpenAIRE
