飼育栽培下における動植物の変異
- 言語:
- 英語
- 状態:
- 完全な作品
- 著者性:
- 著者自身による
- テキストの状態:
- スキャンのノイズは検出されていません (全文に対する自動測定で、人の目では確認していません)
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- 約 440,000 語 · 2,098 節
この作品を引用
- APAチャールズ・ダーウィン. (n.d.). The Variation of Animals and Plants under Domestication [飼育栽培下における動植物の変異]. Digital reproduction: SigPhi. https://sigphiai.com/ja/works/charles-darwin/the-variation-of-animals-and-plants-under-domestication
- MLAチャールズ・ダーウィン. The Variation of Animals and Plants under Domestication [飼育栽培下における動植物の変異]. Digital reproduction, SigPhi, https://sigphiai.com/ja/works/charles-darwin/the-variation-of-animals-and-plants-under-domestication.
- Chicagoチャールズ・ダーウィン. The Variation of Animals and Plants under Domestication [飼育栽培下における動植物の変異]. Digital reproduction, SigPhi. https://sigphiai.com/ja/works/charles-darwin/the-variation-of-animals-and-plants-under-domestication.
収録版の書誌情報です。SigPhi はデジタル複製です。判明している刊行年・出版社・翻訳者を記載し、年が不明の場合は「n.d.」と示します。
何についての本か
『種の起源』では要約するほかなかった証拠を、ダーウィンがここで一挙に並べた書。ハト・イヌ・ウマの品種、小麦や野菜、そして選択する者が人間であるときに何が起こるか。
背景と歴史
一八六八年刊、二十年分の覚書が注ぎ込まれている。形質の遺伝についての仮説「パンゲネシス」を含むが、これは誤りであり、彼自身も暫定的なものとして提示した。だからこそ読む価値がある。彼に欠けていたもの——遺伝の理論——と、それなしにどこまで行けたかが、ここほど明瞭に見える場所はない。
これは編集上の背景であり、引用できる典拠ではありません。作品本文の一節とは異なり、これらの記述はコーパスで検証できません。
every other characteristic that Darwin attributed its exemplary plasticity to its derivation from several different species of wild canines. Domestic cats, on the other hand, differed relatively little from one another, at least, their variation tended to be individual, rather than consolidated into breeds. Darwin attributed this to the minimal influence exerted by cat owners over the mating behavior of their animals, so that, alone among fully domesticated animals, cats could not be said to have undergone a genuine process of artificial selection. Farmyard ungulates, however, had all proved more susceptible to human manipulation, whether through the gradual enhancement of inherent tendencies, such as the relatively early maturation that distinguished shorthorn cattle, or through the preservation of spontaneously arising monstrosities, such as the short, broad foreheads and protruding lower jaws of the niata cattle of South America, the bulldogs of the bovine world. Among animals, fancy pigeons, with their short generations, devoted breeders, and lack of any pragmatic constraints on their extravagant deformations, provided Darwin with his most abundant material. He allotted less space to his survey of domesticated plants, although, with the exception of trees, they tended to he much shorter lived and more variable even than pigeons. For example, as Darwin pointed out, a single long-cultivated species—_Brassica oleracea,_ the ordinary cabbage—had given rise to strains as distinctive as Brussels sprouts, cauliflower, broccoli, and kohl-rabi. Darwin crammed in so much information of this sort that, in order to confine _Variation_ to two volumes of manageable size, less crucial evidence was relegated to a smaller typeface. And so compendious was his survey of domesticates that he felt constrained to deny that it was intended to he an exhaustive catalog.…