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フィンブリアタは,メリステムと臓器同一性遺伝子の間を介し,花の発達を制御する
R Simon1, R Carpenter, S Doyle
1John Innes Centre, Norwich, England.
Cell
|July 15, 1994
まとめ
Antirrhinum majusのフィンブリアタ (fim) 遺伝子は,花の発達中にメリシステムと臓器同一性遺伝子の間の重要なリンクとして機能します. その変異は,花の器官の変異を引き起こし,メリステムの決定性に影響を及ぼします.
科学分野:
- 植物発達生物学 植物発達生物学
- 分子遺伝学 分子遺伝学
- 花の発展は,花の発達である.
背景:
- 花の発達は,メリステムと臓器のアイデンティティを制御する異なった種類の遺伝子によって制御されます.
- これらの調節性遺伝子の正確な遺伝子相互作用と連続的な活性化は,まだ完全に理解されていません.
研究 の 目的:
- 花の発達における遺伝的階層におけるフィンブリアタ (fim) 遺伝子の役割を調査する.
- メリシステムと臓器同一性経路の統合におけるフィムの機能を明らかにする.
主な方法:
- Antirrhinum majus.のトランポゾンタグを使用したフィンブリアタ遺伝子のクローニング.
- 植物器官のアイデンティティとメリステムの決定性への影響を評価するために,フィルム変異の分析.
- フィルム遺伝子発現パターンと,既知の花の同一性遺伝子との関係に関する研究.
主要な成果:
- フィンブリアタ遺伝子は,既知のタンパク質に同質性のない新しいタンパク質をコードする.
- fim変異は,花の器官の部分的なホメオティックな変異と,メリステムの決定性を低下させる.
- ヒトの遺伝子発現と機能は,メリステム同一性遺伝子に依存し,臓器同一性遺伝子を調節する.
結論:
- フィンブリアタ遺伝子は,花の発達経路における中間調節体として機能する.
- fimは,メリシステムと臓器同一性遺伝子領域とダイナミックに相互作用する独特の花のメリシステム領域を確立します.
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