核分裂酵母の比較機能ゲノミクス
Nicholas Rhind1, Zehua Chen, Moran Yassour
1Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, 364 Plantation Street, Worcester, MA 01605, USA. nick.rhind@umassmed.edu
Science (New York, N.Y.)
|April 23, 2011
まとめ
分裂酵母は,トランポゾンフリーなセントロメアと,メオシスとストレス反応のためのユニークな遺伝子調節を進化させた. これらのゲノム適応は,芽生えた酵母と比較して,それらの独特の代謝能力を説明します.
科学分野:
- * ユカリオット生物学とゲノミクス.
- *菌類と真菌の進化について.
背景:
- * 分裂酵母群 (Schizosaccharomyces) は,アスコミケト菌類の基礎系統を表しています.
- *これらの酵母は,基本的な真核細胞のプロセスを理解するための重要なモデルです.
研究 の 目的:
- * 分裂酵母クラドの比較ゲノム分析を行う.
- * ゲノム構造,遺伝子調節,進化的適応を研究する.
主な方法:
- * Schizosaccharomyces種のゲノムアノテーションを比較する.
- * 反感覚転写を含む遺伝子発現分析.
- *トランス作用の調節器と機能モジュールの分析.
主要な成果:
- *トランポゾンがほぼ完全になっていないことと,トランポゾンフリーなセンターメアの出現が確認されました.
- * 植物生長中の中性遺伝子の反意味転写を発見し,規制制御を示唆した.
- * 変異作用因子によって調節されるメオシスとストレス反応のための拡張機能モジュールが見つかりました.
- * 遺伝子の含有量と調節の違いにより,分裂酵母がエタノールを代謝できないことを説明しました.
結論:
- * 分裂酵母は,トランポゾンフリーなセンターメアを含むユニークなゲノム特性を有しています.
- *アンチセンセスの転写とトランス作用のレギュレータは,遺伝子発現制御において重要な役割を果たします.
- * ゲノムと規制の違いが,芽生える酵母と代謝の違いを説明する.
- *この研究は,Schizosaccharomyces属全体の研究のための貴重な洞察とツールを提供します.
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