関連する実験動画

Updated: Sep 9, 2025

Determination of Self- and Inter-incompatibility Relationships in Apricot Combining Hand-Pollination, Microscopy and Genetic Analyses
08:08

Determination of Self- and Inter-incompatibility Relationships in Apricot Combining Hand-Pollination, Microscopy and Genetic Analyses

Published on: June 16, 2020

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特徴の専門化は,混合交配植物における自律的な生育能力を促進する

Hanna Makowski1, Keric Lamb1, Austin M Kim1

  • 1Department of Biology, University of Virginia, P.O. Box 400328, Charlottesville, 22904, Virginia, USA.

American journal of botany
|September 5, 2025
PubMed
まとめ

カンパヌラ・アメリカナの 花粉を集める毛髪は かつて異種交配を促進すると考えられていたが 実は 自己中心の能力と結びついています 交配システムによって長さや回転のダイナミクスは変化し,混合交配の進化を支えている.

キーワード:
カンパヌラ・アメリカナ自律的な自己花の特徴混合交配花粉を集める毛糸二次的な花粉の表示自己受精

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Dihybrid Crosses01:18

Dihybrid Crosses

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Monohybrid Crosses01:20

Monohybrid Crosses

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Trihybrid Crosses02:27

Trihybrid Crosses

Trihybrid Crosses
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
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Frequency-dependent Selection01:21

Frequency-dependent Selection

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.
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Asexual Reproduction02:38

Asexual Reproduction

Asexual reproduction allows plants to reproduce without growing flowers, attracting pollinators, or dispersing seeds. Offspring are genetically identical to the parent and produced without the fusion of male and female gametes.
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Law of Independent Assortment02:03

Law of Independent Assortment

While Mendel’s Law of Segregation states that the two alleles for one gene are separated into different gametes, a different question of how different genes are inherited remains. For example, is the gene for tall plants inherited with the gene for green peas? Mendel asked this question by experimenting with a dihybrid cross; a cross in which both parents are homozygous for two distinct traits resulting in an F1 generation that are heterozygous for both traits.
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