outbred

简明释义

英[aʊtˈbrɛd]美[aʊtˈbrɛd]

v. 使远系繁殖，非亲缘交配（outbreed的过去式和过去分词）

英英释义

单词用法

同义词

反义词

例句

1.For utilization of the mouse embryonic stem (es) cells for various purposes, it is desirable that the cell lines are established from various sources such as inbred and outbred mouse strains.

为了充分利用小鼠胚胎干(es)细胞，就必须从众多小鼠品系中分离es细胞系。

2.For utilization of the mouse embryonic stem (es) cells for various purposes, it is desirable that the cell lines are established from various sources such as inbred and outbred mouse strains.

为了充分利用小鼠胚胎干(es)细胞，就必须从众多小鼠品系中分离es细胞系。

3.The way to reproduce an outbred ancestor is to mate two individuals that mimic the appearance and pedigree of the ancestor's parents.

没有这种选择，你就正在降低强调在血系内繁殖中祖先基因的机会。

4.It is not unusual to produce an excellent quality dog from an outbred litter.

从远缘繁殖中产生一品质极佳的狗并非不寻常的事情。

5.In a controlled breeding experiment, the scientists found that the new strain had been outbred 杂交繁殖 with a more resilient variety.

在一个受控的育种实验中，科学家发现新菌株与一种更具抗性的品种进行了杂交繁殖。

6.The farmer realized that his livestock had become outbred 杂交繁殖 after introducing a different breed into the herd.

农民意识到，在将不同品种引入牛群后，他的牲畜已经杂交繁殖。

7.Many species in the wild are outbred 杂交繁殖 to increase genetic diversity and adaptability.

野生中的许多物种通过杂交繁殖来增加遗传多样性和适应性。

8.The conservation program aims to prevent species from becoming outbred 杂交繁殖 by maintaining pure breeding lines.

该保护计划旨在通过维持纯种繁殖线，防止物种变得杂交繁殖。

9.After several generations of being outbred 杂交繁殖, the plants showed improved resistance to pests.

经过几代的杂交繁殖，这些植物表现出对害虫的更强抵抗力。

作文

In the realm of genetics and breeding, the term outbred refers to the process of mating organisms from different genetic backgrounds to enhance genetic diversity. This practice is crucial in various fields, including agriculture, animal husbandry, and conservation biology. When animals or plants are outbred, the resulting offspring often exhibit improved traits such as increased vigor, disease resistance, and adaptability to changing environments. The concept of outbred populations is particularly significant in maintaining healthy gene pools and preventing the negative effects of inbreeding. For instance, farmers often utilize outbred techniques when breeding livestock. By introducing individuals from different herds or breeds, they can produce offspring that grow faster, are more resilient to diseases, and have better reproductive success. This is essential for ensuring food security and sustainable agricultural practices. Similarly, in the world of crop production, outbred varieties are developed to withstand pests and climate fluctuations, ultimately leading to higher yields and better quality produce. In wildlife conservation, the importance of outbred populations cannot be overstated. Many endangered species suffer from reduced genetic diversity due to habitat loss and fragmentation. Conservationists often implement outbred breeding programs to reintroduce individuals from different populations, thereby enhancing genetic variation and improving the chances of survival for these species. For example, the Florida panther was on the brink of extinction due to inbreeding depression, but by introducing outbred Texas cougars into the population, conservationists were able to increase genetic diversity and improve the health of the species. However, the practice of outbred breeding is not without its challenges. It requires careful planning and consideration of the genetic backgrounds of the organisms involved. If not done properly, it can lead to unintended consequences, such as the introduction of undesirable traits or the disruption of local adaptations. Therefore, scientists and breeders must conduct thorough research and analysis before implementing outbred strategies. In conclusion, the concept of outbred breeding plays a vital role in enhancing genetic diversity across various biological fields. Its applications in agriculture, animal husbandry, and conservation highlight the importance of maintaining healthy populations and ensuring the resilience of species in the face of environmental challenges. As we continue to navigate the complexities of genetics, understanding the significance of outbred populations will be crucial for future advancements and sustainability efforts. Embracing the principles of outbred breeding can lead to a more robust and diverse biosphere, benefiting both humanity and the natural world alike.

在遗传学和繁殖领域，术语outbred指的是将来自不同遗传背景的生物进行交配，以增强遗传多样性的过程。这种做法在农业、动物饲养和保护生物学等多个领域中至关重要。当动物或植物被outbred时，所产生的后代通常会表现出更强的特征，如增加的活力、抗病能力和对环境变化的适应能力。outbred种群的概念在维持健康基因库和防止近亲繁殖的负面影响方面尤为重要。 例如，农民在饲养牲畜时经常利用outbred技术。通过引入来自不同群体或品种的个体，他们可以生产出生长更快、对疾病更有抵抗力和繁殖成功率更高的后代。这对于确保粮食安全和可持续农业实践至关重要。同样，在作物生产领域，outbred品种的开发旨在抵御害虫和气候波动，最终导致更高的产量和更好的产品质量。 在野生动物保护中，outbred种群的重要性不容小觑。许多濒危物种由于栖息地丧失和碎片化而遭受遗传多样性下降。保护主义者经常实施outbred繁殖计划，以重新引入来自不同种群的个体，从而增强遗传变异，提高这些物种的生存机会。例如，佛罗里达美洲豹因近亲繁殖而濒临灭绝，但通过将outbred德克萨斯美洲狮引入该种群，保护主义者能够增加遗传多样性并改善该物种的健康状况。 然而，outbred繁殖的做法并非没有挑战。这需要仔细的规划和对参与生物遗传背景的考虑。如果处理不当，可能会导致意想不到的后果，例如引入不良特征或破坏地方适应性。因此，科学家和育种者在实施outbred策略之前必须进行彻底的研究和分析。 总之，outbred繁殖的概念在增强各个生物领域的遗传多样性方面发挥着至关重要的作用。它在农业、动物饲养和保护中的应用突显了维持健康种群和确保物种在环境挑战面前的韧性的必要性。随着我们继续应对遗传学的复杂性，理解outbred种群的重要性将对未来的进步和可持续努力至关重要。接受outbred繁殖的原则可以导致一个更强大和多样化的生物圈，造福人类和自然界。