allogamous

简明释义

英[ælɒɡəməs]美[əˈlɑːɡəməs]

adj. [植] 异体受精的；[植] 异花受粉的

英英释义

单词用法

同义词

反义词

例句

1.With 6 different genetic background and high pure upland cotton lines as female parents, the variation of allogamous affinity and main traits of hybrid boll were analyzed under assisted pollination.

研究了人工授粉条件下6个遗传背景差异较大、纯合度高的陆地棉亲本的异交亲合力及杂交铃主要性状差异。

2.With 6 different genetic background and high pure upland cotton lines as female parents, the variation of allogamous affinity and main traits of hybrid boll were analyzed under assisted pollination.

研究了人工授粉条件下6个遗传背景差异较大、纯合度高的陆地棉亲本的异交亲合力及杂交铃主要性状差异。

3.Research indicates that allogamous organisms may adapt more quickly to environmental changes.

研究表明，异交生物可能更快适应环境变化。

4.Many flowering plants are considered allogamous because they require pollen from other plants for fertilization.

许多开花植物被认为是异交的，因为它们需要来自其他植物的花粉进行授粉。

5.Some animals exhibit allogamous behaviors during mating seasons to promote genetic mixing.

一些动物在交配季节表现出异交行为，以促进基因混合。

6.The allogamous nature of certain species helps maintain genetic diversity within populations.

某些物种的异交特性有助于维持种群内的遗传多样性。

7.In agriculture, allogamous crops often yield better results than self-pollinating varieties.

在农业中，异交作物通常比自花授粉品种产生更好的结果。

作文

In the world of biology, the term allogamous refers to a reproductive strategy where organisms engage in cross-fertilization rather than self-fertilization. This phenomenon is particularly prevalent among flowering plants and certain animal species. Understanding the concept of allogamous reproduction is essential for comprehending the dynamics of genetic diversity and adaptation in various ecosystems.One of the primary advantages of allogamous reproduction is the increased genetic variation it promotes. When two different individuals contribute genetic material to the next generation, the resulting offspring inherit a unique combination of traits. This genetic mixing can enhance the resilience of populations, allowing them to better adapt to changing environmental conditions. For instance, in a rapidly changing climate, plants that reproduce through allogamous methods may develop new traits that enable them to survive drought or resist diseases more effectively than their self-fertilizing counterparts.Furthermore, allogamous species often exhibit complex mating systems, which can include various strategies such as pollination by insects, birds, or wind. These interactions not only facilitate reproduction but also contribute to the intricate relationships within ecosystems. For example, many flowering plants rely on specific pollinators to transfer pollen from one flower to another. This mutualistic relationship ensures that both the plant and the pollinator benefit, as the plant achieves fertilization while the pollinator obtains nectar or pollen as food.However, allogamous reproduction is not without its challenges. The reliance on external agents for fertilization can lead to issues such as limited pollinator availability or habitat destruction, which can negatively impact the reproductive success of allogamous species. Additionally, the need for two compatible individuals can restrict the potential for reproduction in sparse populations, ultimately affecting the survival of the species.In contrast, self-fertilizing species, or those that reproduce via self-pollination, may have an advantage in environments where mates are scarce. These organisms can produce offspring without the need for a partner, ensuring that they can propagate even in isolated conditions. However, this reproductive strategy often leads to reduced genetic diversity, making populations more vulnerable to diseases and environmental changes.In conclusion, the concept of allogamous reproduction plays a vital role in the study of biodiversity and ecosystem health. By facilitating genetic exchange between individuals, allogamous species contribute to the overall resilience of populations and ecosystems. Understanding the balance between allogamous and self-fertilizing reproductive strategies is crucial for conservation efforts, as it can inform strategies aimed at preserving genetic diversity and promoting the long-term survival of various species. As we continue to explore the complexities of reproduction in the natural world, the significance of allogamous processes will undoubtedly remain a focal point in our understanding of biological diversity.

在生物学的世界中，术语allogamous指的是一种繁殖策略，其中生物体进行异花授粉而不是自花授粉。这种现象在开花植物和某些动物物种中尤为普遍。理解allogamous繁殖的概念对于理解各种生态系统中的遗传多样性和适应动态至关重要。allogamous繁殖的主要优势之一是它促进了基因变异的增加。当两个不同的个体为下一代提供遗传物质时，所产生的后代会继承独特的特征组合。这种基因混合可以增强种群的韧性，使其更好地适应变化的环境条件。例如，在快速变化的气候中，通过allogamous方法繁殖的植物可能会发展出新的特征，使它们能够更有效地抵御干旱或抵抗疾病，而不是自花授粉的植物。此外，allogamous物种通常表现出复杂的交配系统，包括各种策略，例如由昆虫、鸟类或风进行授粉。这些相互作用不仅促进了繁殖，还为生态系统内的复杂关系做出了贡献。例如，许多开花植物依赖特定的授粉者将花粉从一朵花转移到另一朵花。这种互利关系确保了植物和授粉者的双重受益，因为植物实现了授粉，而授粉者获得了花蜜或花粉作为食物。然而，allogamous繁殖并非没有挑战。对外部代理进行授粉的依赖可能导致诸如授粉者可用性有限或栖息地破坏等问题，这可能对allogamous物种的繁殖成功产生负面影响。此外，需要两个兼容个体的需求可能限制了稀疏种群的繁殖潜力，最终影响物种的生存。相比之下，自花授粉物种或通过自花授粉繁殖的物种在伴侣稀缺的环境中可能具有优势。这些生物体可以在没有伴侣的情况下产生后代，确保它们即使在孤立的条件下也能繁殖。然而，这种繁殖策略往往导致遗传多样性的减少，使种群更容易受到疾病和环境变化的影响。总之，allogamous繁殖的概念在生物多样性和生态系统健康的研究中发挥着至关重要的作用。通过促进个体之间的基因交流，allogamous物种为种群和生态系统的整体韧性做出了贡献。理解allogamous和自花授粉繁殖策略之间的平衡对于保护工作至关重要，因为它可以为保护遗传多样性和促进各种物种长期生存的战略提供信息。随着我们继续探索自然界中繁殖的复杂性，allogamous过程的重要性无疑将继续成为我们理解生物多样性的焦点。