規制のアーキペラゴは,数字のホックス遺伝子転写を制御しています
Thomas Montavon1, Natalia Soshnikova, Bénédicte Mascrez
1National Research Centre, Frontiers in Genetics, School of Life Sciences, Ecole Polytechnique Fédérale, Lausanne, Switzerland.
Cell
|November 29, 2011
まとめ
発達する指のホックスド遺伝子調節には,増強剤の"調節群島"が含まれる. このシステムは柔軟性を認め,テトラポッドの指の多様性と回復力を説明する可能性がある.
科学分野:
- 発達生物学 発達生物学とは
- 進化生物学の進化生物学について
- 遺伝学 遺伝学とは
背景:
- テトラポッドの成功は,数字の進化と結びついている.
- ホックスド遺伝子は,指の発達,成長とパターンの組織化において極めて重要です.
- Hoxd遺伝子調節を理解することは,数字の進化を理解するための鍵です.
研究 の 目的:
- 発達中の指のホックスド遺伝子を制御する遠隔の調節部位を特定する.
- Hoxd遺伝子調節ユニットの3次元アーキテクチャを調査する.
- ホックス遺伝子転写に対する規制要素の機能的貢献を解明する.
主な方法:
- 発達中の四肢におけるホックスド遺伝子調節ユニットの3Dアーキテクチャを検知する.
- 異なる規制領域のイン・ビボの削除.
- 遺伝子砂漠に散らばった強化剤のような配列の分析.
主要な成果:
- 活性Hoxd遺伝子群と相互作用するディスタル調節部位を特定した.
- これらの増強剤のような元素は,遺伝子砂漠に位置しています.
- 各要素は,数値でホックス遺伝子転写に定量的にまたは質的に貢献します.
結論:
- Hoxd遺伝子調節のための"調節アーキペラゴ"と呼ばれる新しい遺伝子システムを提案しました.
- このシステムは遺伝子の調節に固有の柔軟性を提供します.
- "規制アーキペラゴ"は,テトラポッドの指の多様性と回復力を説明するかもしれない.
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