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相关概念视频

Altruism01:03

Altruism

Altruistic behaviors are “unselfish” behaviors—those that help another individual at the expense of the individual carrying out the behavior. Despite the negative consequences for the altruistic animal, these behaviors are thought to have evolved for several reasons.
Inclusive Fitness00:57

Inclusive Fitness

Most altruistic behavior—in which one animal helps another at a cost to themselves—occurs between relatives. Scientists think these altruistic behaviors evolved because they increase the inclusive fitness of the animal providing help.
Egoism and Altruism01:55

Egoism and Altruism

Voluntary behavior with the intent to help other people is called prosocial behavior. Why do people help other people? Is personal benefit such as feeling good about oneself the only reason people help one another?
Diversity of Protists II01:27

Diversity of Protists II

Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
Diversity of Protists IV01:27

Diversity of Protists IV

Amoebozoa represent a diverse group of terrestrial and aquatic protists that utilize lobe-shaped pseudopodia for locomotion and feeding. This characteristic differentiates them from the Rhizaria, which possess threadlike pseudopodia. The primary classifications within Amoebozoa include gymnamoebas, entamoebas, and the plasmodial and cellular slime molds. Phylogenetic evidence indicates that Amoebozoa diverged from a lineage that ultimately gave rise to fungi and animals.Gymnamoebas and...
Microbial Interactions: Cooperation01:26

Microbial Interactions: Cooperation

Microbial cooperation involves beneficial interactions in which different species work together for individual or mutual advantage. These interactions can profoundly influence ecological dynamics and evolutionary processes, and they are essential to many pathogenic and symbiotic relationships.Nematode–Bacteria CooperationA striking example is the relationship between the Gram-negative bacterium Xenorhabdus nematophila and the parasitic nematode Steinernema carpocapsae. Juvenile nematodes...

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Physical contact is essential for macrocyst formation in wild Dictyostelium discoideum: a response to O'Day.

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Does high relatedness promote cheater-free multicellularity in synthetic lifecycles?

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Sex ratio and gamete size across eastern North America in Dictyostelium discoideum, a social amoeba with three sexes.

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相关实验视频

Updated: May 15, 2026

Investigating the Function of Coronin A in the Early Starvation Response of Dictyostelium discoideum by Aggregation Assays
07:48

Investigating the Function of Coronin A in the Early Starvation Response of Dictyostelium discoideum by Aggregation Assays

Published on: June 18, 2016

利他主义和社会欺骗在社会虫Dictyostelium discoideum中的社会欺骗

J E Strassmann1, Y Zhu, D C Queller

  • 1Department of Ecology and Evolutionary Biology, Rice University, Houston, Texas 77251-1892, USA. strassm@rice.edu

Nature
|January 5, 2001
PubMed
概括
此摘要是机器生成的。

社会性虫,Dictyostelium discoideum,从混合的克隆中形成嵌合体. 许多混合物显示"作弊者"克隆剥削他人,揭示了发展竞争,而不仅仅是合作.

更多相关视频

Studying the Protein Quality Control System of D. discoideum Using Temperature-controlled Live Cell Imaging
06:09

Studying the Protein Quality Control System of D. discoideum Using Temperature-controlled Live Cell Imaging

Published on: December 2, 2016

Genetic Engineering of Dictyostelium discoideum Cells Based on Selection and Growth on Bacteria
06:08

Genetic Engineering of Dictyostelium discoideum Cells Based on Selection and Growth on Bacteria

Published on: January 25, 2019

相关实验视频

Last Updated: May 15, 2026

Investigating the Function of Coronin A in the Early Starvation Response of Dictyostelium discoideum by Aggregation Assays
07:48

Investigating the Function of Coronin A in the Early Starvation Response of Dictyostelium discoideum by Aggregation Assays

Published on: June 18, 2016

Studying the Protein Quality Control System of D. discoideum Using Temperature-controlled Live Cell Imaging
06:09

Studying the Protein Quality Control System of D. discoideum Using Temperature-controlled Live Cell Imaging

Published on: December 2, 2016

Genetic Engineering of Dictyostelium discoideum Cells Based on Selection and Growth on Bacteria
06:08

Genetic Engineering of Dictyostelium discoideum Cells Based on Selection and Growth on Bacteria

Published on: January 25, 2019

科学领域:

  • 进化生物学是进化的生物学.
  • 发育生物学是发展生物学.
  • 社会行为社会行为.

背景情况:

  • 迪西奥斯蒂 (Dictyostelium discoideum) 是一个多细胞发育的模型生物.
  • 细胞在饥饿后聚集在一起,形成一个,一些细胞以利他主义的方式形成了无菌的茎.

研究的目的:

  • 研究Dictyostelium discoideum在发育过程中的不同克隆之间的社会动态和利用潜力.
  • 为了确定合作开发是否是常态,或者克隆之间是否存在竞争.

主要方法:

  • 从自然种群中收集Dictyostelium discoideum克隆物.从自然种群中收集Dictyostelium discoideum克隆物.
  • 创建不同克隆的模拟混合物.
  • 使用微卫星标记来追踪克隆贡献和识别利用.

主要成果:

  • 不同的克隆很容易混合在一起,形成了仿真人.
  • 一半的模拟混合物表现出明显的"骗子"和"受害者"克隆.
  • 通过减少茎贡献来利用其他克隆的选择证据.

结论:

  • Dictyostelium discoideum的发展涉及克隆者之间的竞争和利益冲突,而不仅仅是纯粹的合作.
  • 这种社会竞争使得它成为研究社会进化的一个有价值的模型.
  • 这些发现使其作为纯粹合作发展的模型的使用变得更加复杂.