論文 - 詳細
| RRC ID | 47280 |
|---|---|
| 著者 | Imai KS, Hudson C, Oda-Ishii I, Yasuo H, Satou Y. |
| タイトル | Antagonism between β-catenin and Gata.a sequentially segregates the germ layers of ascidian embryos. |
| ジャーナル | Development |
| Abstract |
Many animal embryos use nuclear β-catenin (nβ-catenin) during the segregation of endomesoderm (or endoderm) from ectoderm. This mechanism is thus likely to be evolutionarily ancient. In the ascidian embryo, nβ-catenin reiteratively drives binary fate decisions between ectoderm and endomesoderm at the 16-cell stage, and then between endoderm and margin (mesoderm and caudal neural) at the 32-cell stage. At the 16-cell stage, nβ-catenin activates endomesoderm genes in the vegetal hemisphere. At the same time, nβ-catenin suppresses the DNA-binding activity of a maternal transcription factor, Gata.a, through a physical interaction, and Gata.a thereby activates its target genes only in the ectodermal lineage. In the present study, we found that this antagonism between nβ-catenin and Gata.a also operates during the binary fate switch at the 32-cell stage. Namely, in marginal cells where nβ-catenin is absent, Gata.a directly activates its target, Zic-r.b (ZicL), to specify the marginal cell lineages. Thus, the antagonistic action between nβ-catenin and Gata.a is involved in two consecutive stages of germ layer segregation in ascidian embryos. |
| 巻・号 | 143(22) |
| ページ | 4167-4172 |
| 公開日 | 2016-11-15 |
| DOI | 10.1242/dev.141481 |
| PII | dev.141481 |
| PMID | 27707797 |
| MeSH | Animals Animals, Genetically Modified Body Patterning / genetics* Cell Lineage / genetics Ciona intestinalis / embryology* Ciona intestinalis / genetics Embryo, Nonmammalian GATA1 Transcription Factor / antagonists & inhibitors* GATA1 Transcription Factor / genetics Gene Expression Regulation, Developmental Germ Layers / cytology Germ Layers / embryology* Germ Layers / metabolism Urochordata / embryology Urochordata / genetics beta Catenin / antagonists & inhibitors* beta Catenin / genetics |
| IF | 5.611 |
| 引用数 | 7 |
| WOS 分野 | DEVELOPMENTAL BIOLOGY |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 1 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| カタユウレイボヤ・(ニッポンウミシダ) | Wild C. int |