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蝶 や 蝶 の 遺伝子 皮 は 模倣 や 暗号 を 制御 し て い ます
Nicola J Nadeau1,2, Carolina Pardo-Diaz3, Annabel Whibley4,5
1Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield, S10 2TN UK.
Nature
|June 3, 2016
PubMed で要約を見る
まとめ
蝶や (Lepidoptera) の翼パターンの変化を制御する新発見した遺伝子である皮質があります この発見は多くの昆虫種の 翼の色彩の進化に 共通する遺伝的メカニズムを示唆しています
科学分野:
- 進化生物学
- 遺伝学
- 昆虫の形態学
背景:
- 蝶や (Lepidoptera) の翼のパターンは多様で,自然選択によって進化しています.
- レピドプテリアの羽の色は でできていて 進化の重要なイノベーションです
- これらのパターンの遺伝的コントロールと 種間の共通性は まだ十分に理解されていません
研究 の 目的:
- レピドプテラの翼パターンの制御の 遺伝的基盤を特定するためです
- 種間でのパターン変化の遺伝的メカニズムが保存されているかどうかを調査する.
- 翼の色を決める 自然選択の役割を理解する
主な方法:
- 微細スケールマッピングと集団ゲノミクスを採用した.
- 遺伝子発現分析が行われました.
- 遺伝子皮質は 重要な調節因子として特定されました
主要な成果:
- 遺伝子皮質はヘリコニウス蝶のパターンのスイッチを制御するものであることが判明した.
- 皮質は急速に進化する遺伝子のサブファミリーに属し, スケール細胞の発達と色素化の役割を示唆しています.
- 類似したメカニズムが,ペッパーモット (Biston betularia) で観察されました.
結論:
- 皮質遺伝子は,Lepidopteraの翼パターンの変化を制御する上で重要な役割を果たします.
- この遺伝的メカニズムは 様々なや蝶の種で保存されているようです
- 皮質の遺伝子は 昆虫の翼の色とパターンの進化における 自然選択の主要な標的である.


