社会的進化. 社会的な進化. 一人暮らしから集団生活への進化的移行のゲノムシグネチャー
Karen M Kapheim1, Hailin Pan2, Cai Li3
1Carl R. WoeseInstitute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA. Department of Entomology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA. Department of Biology, Utah State University, Logan, UT 84322, USA. karen.kapheim@usu.edu wangj@genomics.org.cn generobi@illinois.edu zhanggj@genomics.org.cn.
Science (New York, N.Y.)
|May 16, 2015
まとめ
ミツバチの社会的行動 (ユーソシアリティ) の進化には,リラックスした遺伝子選択と多様な遺伝的経路が含まれています. 独特の遺伝的基盤にもかかわらず,トランジションは,遺伝子調節の増加や移植可能な要素の減少などの共通のパターンを示しています.
科学分野:
- 進化生物学の進化生物学について
- ゲノミクスゲノミクスとは
- 行動生態学は,行動生態学である.
背景:
- ユーソシアリティは大きな進化的移行を象徴しているが,それを牽引するゲノムの変化はほとんど不明のままである.
- 社会進化の遺伝的基礎を理解することは,進化生物学にとって極めて重要です.
研究 の 目的:
- 複数のミツバチ種におけるeusocialityの進化に関連するゲノム変化を調査する.
- 社会性への独立した進化的移行の遺伝的基盤における共通点と違いを特定する.
主な方法:
- 社会的複雑性が異なる10種のミツバチのゲノムを比較した.
- 遺伝子の進化,選択圧力,および移植可能な元素の活性に関する分析.
主要な成果:
- 社会的複雑性の増大は,多くの遺伝子におけるリラックスした選択と相関する.
- ユーソシアリティへの独立した移行には,独特の遺伝的基盤があり,単一の進化のロードマップを否定します.
- トランジションの共通の特徴には,タンパク質進化の制約の増加,遺伝子調節の可能性の強化,転移可能な元素の多様性と豊富さの減少が含まれます.
結論:
- ユーソシアリティは,複数の異なる遺伝的経路を通じて進化することができます.
- 異なったメカニズムにもかかわらず,ユーソシアリティへの移行は,遺伝子調節とゲノム安定性における収束パターンを伴うようです.
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