outbreeding

简明释义

英[ˈaʊtˌbriːdɪŋ]美[ˈaʊtˌbridɪŋ]

n. [遗]远系繁殖；异族通婚

v. 使作非亲缘交配；繁殖得比……快（outbreed 的 ing 形式）

adj. 远交的

英英释义

单词用法

同义词

反义词

例句

1.At the same time, however, the propensity to choose someone with slightly similar genes can also avoid the problem of outbreeding — the mixing of genes that are too different.

然而，与此同时，选择稍微相似基因的人为配偶也能避免远系繁殖——差异太大的基因组合问题。

2.At the same time, however, the propensity to choose someone with slightly similar genes can also avoid the problem of outbreeding — the mixing of genes that are too different.

然而，与此同时，选择稍微相似基因的人为配偶也能避免远系繁殖——差异太大的基因组合问题。

3.Selfing heterozygotes halves the heterozygosity, and thus outbreeding maintains heterozygosity and produces a more adaptable population.

自交杂合子有一半杂合性，因此远系繁殖可以产生适应能量更强的种群。

4.If inbreeding is bad, then the opposite - outbreeding - should be good.

如果同系繁殖不好，那么与之相反的远系繁殖就应该好。

5.The farmers decided to practice outbreeding 异交 to improve the health of their livestock.

农民们决定进行异交以改善他们牲畜的健康。

6.Research shows that outbreeding 异交 can increase genetic diversity in plant species.

研究表明，异交可以增加植物物种的遗传多样性。

7.Many conservationists advocate for outbreeding 异交 to prevent inbreeding depression in endangered species.

许多保护主义者提倡进行异交以防止濒危物种中的近亲繁殖衰退。

8.By using outbreeding 异交, breeders can introduce new traits into their animal populations.

通过使用异交，育种者可以将新特性引入他们的动物种群中。

9.The study focused on the effects of outbreeding 异交 on the growth rates of fish.

这项研究集中于异交对鱼类生长速度的影响。

作文

Outbreeding is a term used in biology to describe the mating of individuals from different genetic backgrounds, which can lead to increased genetic diversity and improved health in offspring. This concept is crucial not only in the animal kingdom but also in agriculture and conservation efforts. By promoting outbreeding (异交), we can enhance the resilience of populations against diseases and environmental changes. In nature, many species rely on outbreeding (异交) to maintain a healthy gene pool. For instance, when animals from different regions interbreed, their offspring often exhibit traits that are beneficial for survival. These traits may include resistance to specific pathogens or the ability to adapt to varying climates. In contrast, inbreeding, or mating within a limited gene pool, can lead to a higher likelihood of genetic disorders and reduced adaptability. One of the most famous examples of outbreeding (异交) is found in the case of the Florida panther. This subspecies of the cougar faced severe inbreeding depression due to habitat fragmentation and a shrinking population. To combat this issue, wildlife biologists introduced Texas cougars into the Florida panther population. The result was a rejuvenation of the gene pool, leading to healthier and more robust offspring. This case highlights the importance of outbreeding (异交) in conservation biology and the restoration of endangered species. In agriculture, outbreeding (异交) plays a vital role in crop production. Farmers often cross-pollinate different plant varieties to produce hybrid seeds that yield better crops. These hybrids typically show increased vigor, higher resistance to pests, and improved nutritional value. For example, the development of hybrid corn has revolutionized the agricultural industry, allowing farmers to achieve higher yields and greater food security. However, while outbreeding (异交) has numerous benefits, it is essential to approach it with caution. Not all crosses result in favorable outcomes, as some combinations may lead to outbreeding depression, where the offspring inherit incompatible traits from their parents. This phenomenon underscores the need for careful planning and research before implementing outbreeding (异交) strategies, whether in wildlife conservation or agriculture. Another significant aspect of outbreeding (异交) is its impact on human health. Genetic diversity is crucial for populations to withstand diseases, as seen during outbreaks of infectious diseases. When a population lacks genetic variation, it becomes more susceptible to epidemics. Therefore, understanding the principles of outbreeding (异交) can inform public health strategies aimed at preserving genetic diversity among human populations. In conclusion, outbreeding (异交) is a powerful biological strategy that fosters genetic diversity, enhances resilience, and promotes overall health in both natural and agricultural systems. As we face global challenges such as climate change and habitat loss, the principles of outbreeding (异交) will be essential in guiding conservation efforts and ensuring sustainable agricultural practices. By embracing the benefits of outbreeding (异交), we can work towards a healthier planet and a more secure future for all living organisms.

异交是一个生物学术语，指的是来自不同遗传背景的个体之间的交配，这可以导致后代的遗传多样性增加和健康改善。这个概念不仅在动物王国中至关重要，在农业和保护工作中也是如此。通过促进异交，我们可以增强种群对疾病和环境变化的抵御能力。 在自然界中，许多物种依赖于异交来维持健康的基因库。例如，当来自不同地区的动物杂交时，它们的后代通常会表现出对生存有利的特征。这些特征可能包括对特定病原体的抵抗力或适应不同气候的能力。相比之下，近亲繁殖，即在有限的基因库内交配，可能导致遗传疾病的发生率增加和适应能力降低。 一个著名的异交案例是佛罗里达美洲狮。这种美洲狮亚种由于栖息地破碎化和种群减少而面临严重的近亲繁殖抑制。为了应对这个问题，野生动物生物学家将德克萨斯州的美洲狮引入佛罗里达美洲狮种群。结果是基因库得到了恢复，后代变得更加健康和强壮。这个案例突显了异交在保护生物学和濒危物种恢复中的重要性。 在农业中，异交在作物生产中发挥着重要作用。农民通常会进行不同植物品种的交叉授粉，以生产出更好的杂交种子。这些杂交种子通常表现出更强的活力、更高的抗虫害能力和更好的营养价值。例如，杂交玉米的发展彻底改变了农业行业，使农民能够实现更高的产量和更大的粮食安全。 然而，虽然异交有许多好处，但必须谨慎处理。并非所有的交配都能产生有利的结果，因为某些组合可能导致异交抑制，即后代从父母那里继承不兼容的特征。这一现象强调了在实施异交策略时，无论是在野生动物保护还是农业中，都需要进行仔细的规划和研究。 异交的另一个重要方面是其对人类健康的影响。遗传多样性对于种群抵御疾病至关重要，正如在传染病爆发期间所见。当一个种群缺乏遗传变异时，它就变得更容易受到流行病的影响。因此，理解异交的原则可以为公共卫生策略提供信息，旨在保护人类种群之间的遗传多样性。 总之，异交是一种强大的生物学策略，促进遗传多样性，增强韧性，并促进自然和农业系统的整体健康。随着我们面临气候变化和栖息地丧失等全球挑战，异交的原则将在指导保护工作和确保可持续农业实践方面至关重要。通过拥抱异交的好处，我们可以朝着一个更健康的星球和所有生物的更安全未来努力。