まとめ
トウモロコシ (Zea mays) は,テオシンテの雄のタッセルから進化したのかもしれない. この理論は,トウモロコシとトウモロコシの遺伝的類似性を説明します.
科学分野:
- 植物学 植物学
- 進化生物学の進化生物学について
- 遺伝学 遺伝学とは
背景:
- トウモロコシの進化的起源 (Zea mays ssp. mays) から theosinte が議論されている.
- 既存の理論は,トウモロコシとテオシンテとの間の最小限の遺伝的,生化学的な違いを説明するために苦労しています.
研究 の 目的:
- トウモロコシの進化に関する代替仮説を提案し,支持する.
- トウモロコシとテオシンテの形態学的および遺伝的類似性を説明する.
主な方法:
- トウモロコシとテオシンテの花束の形態学的比較.
- 遺伝子および生化学データの分析.
- エピジェネティックと発達上の変化を仮説化する.
主要な成果:
- 男性のテオシンテ・タッセルは,トウモロコシの耳の構造と形態学的に一致しています.
- この仮説は,トウモロコシとテオシンテとの間の限られた遺伝的差異をよりよく説明します.
- トウモロコシの無性花束は,環境によって引き起こされた可能性のある急速な性変異を示唆しています.
結論:
- トウモロコシの耳は,おそらく女性耳ではなく,テオシンテの雄のタッセルから進化した.
- この進化の経路には,表遺伝的変化,頂上支配,そして栄養分配分の変化が含まれていた.
- 人間の選択により,この異常が同化され,現代のトウモロコシ植物が生まれました.
関連する概念動画
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Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
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