鳥の数字のトランスクリプトミックの分析により,鳥の保存された数字のアイデンティティと,そこから派生した数字のアイデンティティが明らかになりました
Zhe Wang1, Rebecca L Young, Huiling Xue
1Yale Systems Biology Institute, and Department of Ecology and Evolutionary Biology, Yale University, West Haven, Connecticut 06516, USA.
Nature
|September 6, 2011
まとめ
トランスクリプトミックのデータは,鳥の翼の数字の同一性を明らかにし,最初の翼の数字は2ではなく1の位置から進化したことを示唆しています. この研究は,鳥の四肢の発達に関する進化の経路を明らかにしています.
科学分野:
- 進化生物学の進化生物学について
- 発達遺伝学 発達遺伝学
- 比較ゲノミクスとは
背景:
- 形態学的特徴は,発達中の遺伝子発現から生じる.
- 鳥の翼の数字のアイデンティティを理解することは,長年の進化論的なパズルです.
- 胚学的および古生物学的データは,鳥類の指の起源について矛盾する証拠を提供します.
研究 の 目的:
- トランスクリプトミックのデータを用いて,鳥の翼の数字の同一性を解明する.
- 鳥の四肢の進化の歴史を調査する.
- 鳥の翼と足の指の間の遺伝子発現パターンを比較するために.
主な方法:
- 鳥の翼と足の指の比較トランスクリプトミックの分析.
- ゲノム全体の遺伝子発現データを活用して,キャラクターのアイデンティティを推論する.
- 数字の発達を支える遺伝子規制ネットワークを分析する.
主要な成果:
- トランスクリプトミックのデータは,最初の翼の数字と最初の足の数字を強く関連付けています.
- 最初の翼の数字は,位置2から発展したにもかかわらず,数字Iとの保持された同一性を示しています.
- 後方の翼の指は,後肢の指と比較してより高い差別化を示し,ユニークなアイデンティティを示しています.
結論:
- 鳥の翼の数字のアイデンティティは,遺伝子発現パターンを介して追跡できます.
- 証拠は,鳥の幹の系統において,最初の数字が位置1から位置2に転位したことを示唆している.
- この研究は,鳥の数字のアイデンティティに関する新しい洞察を提供し,既存の進化モデルに挑戦しています.
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