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関連する概念動画

Pollination and Flower Structure02:40

Pollination and Flower Structure

75.1K
Flowers are the reproductive, seed-producing structures of angiosperms. Typically, flowers consist of sepals, petals, stamens, and carpels. Sepals and petals are the vegetative flower organs. Stamens and carpels are the reproductive organs.  
75.1K
Morphogenesis02:19

Morphogenesis

30.1K
Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.
30.1K
Frequency-dependent Selection01:21

Frequency-dependent Selection

23.0K
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
23.0K
Genetics of Speciation02:16

Genetics of Speciation

20.8K
Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
20.8K
Mate Choice01:20

Mate Choice

11.5K
Mate choice—the decision about whom to mate with—is a type of natural selection, since animals must reproduce to pass down their genes. Mate choice is also called intersexual selection because the behavior occurs between the sexes.
11.5K
Background and Environment Affect Phenotype02:27

Background and Environment Affect Phenotype

7.4K
Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
7.4K

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関連する実験動画

Updated: Jan 8, 2026

Field Experiments of Pollination Ecology: The Case of Lycoris sanguinea var. sanguinea
07:19

Field Experiments of Pollination Ecology: The Case of Lycoris sanguinea var. sanguinea

Published on: November 25, 2016

12.0K

送粉者と花の形態が花粉の受容に影響を与える相互作用

Ethan Newman, Allan G Ellis, Bruce Anderson

    The American naturalist
    |December 19, 2025
    PubMed
    まとめ

    送粉者の有効性は変化し、植物の生殖に影響を与えます。この研究は、ハエやミツバチのような異なる送粉者が、2つの植物種において花粉受容にどのように異なる影響を与え、花の進化に影響を与えるかを示しています。

    科学分野:

    • Ecology; Evolutionary Biology; Botany

    背景:

    • 送粉者は、植物の種分化と花の形質の多様化の主要な推進力です。
    • 植物と送粉者の相互作用を理解することは、植物の生殖成功と群集の動態にとって重要です。

    研究 の 目的:

    • 送粉者と花の機能的形質の適合が、花粉の受容にどのように影響するかを調査すること。
    • トリトニオプシス・レブルタとネリン・フミリスにおける花粉受容に対する異なるタイプの送粉者（長鼻のハエとミツバチ）の影響を分析すること。

    主な方法:

    • 単一の送粉者訪問からの花粉受容データに基づいて、送粉者の性能表面を構築しました。
    • 花の形態のばらつきと、送粉者の機能的形質との相互作用を調べました。
    • 異なる植物集団と送粉者群集間での花粉受容パターンの比較を行いました。

    主要な成果:

    • 送粉者の有効性が異なることを示す、異なる花粉受容表面が観察されました。
    • 機能的に異なる送粉者（ハエとミツバチ）が、異なる花粉受容パターンを媒介することがわかりました。
    • 送粉者の有効性が、植物集団内および集団間で異なることが実証されました。

    結論:

    • 植物の生殖出力は、群集における多様な送粉者の有効性によって大きく影響されます。
    キーワード:
    雄性配偶子生存度機械的適合性能表面表現型選択送粉有効性形質適合

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    Collection and Identification of Pollen from Honey Bee Colonies
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    Collection and Identification of Pollen from Honey Bee Colonies

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    関連する実験動画

    Last Updated: Jan 8, 2026

    Field Experiments of Pollination Ecology: The Case of Lycoris sanguinea var. sanguinea
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    Field Experiments of Pollination Ecology: The Case of Lycoris sanguinea var. sanguinea

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    Author Spotlight: A High-Resolution, Single-Grain, In Vivo Pollen Hydration Bioassay for Arabidopsis thaliana
    07:07

    Author Spotlight: A High-Resolution, Single-Grain, In Vivo Pollen Hydration Bioassay for Arabidopsis thaliana

    Published on: June 30, 2023

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    Collection and Identification of Pollen from Honey Bee Colonies
    08:11

    Collection and Identification of Pollen from Honey Bee Colonies

    Published on: January 19, 2021

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  • 機能的形質の適合は、植物の適応と種分化の形成において重要な役割を果たします。
  • この研究は、多送粉者システムにおける植物の適応の複雑さを浮き彫りにしています。