introgressive

简明释义

英[ˌɪntrəˈɡrɛsɪv]美[ˌɪntrəˈɡrɛsɪv]

基因渗入的（introgression 的变体）

英英释义

单词用法

同义词

反义词

例句

1.A set of reciprocal introgressive line populations was used to study phenotypic index, physiological index and yield characteristic of rice under normal and low-N conditions.

同时利用一套双向导入系群体，分别在正常和低氮条件下考察相应形态指标、生理指标和产量性状。

2.A set of reciprocal introgressive line populations was used to study phenotypic index, physiological index and yield characteristic of rice under normal and low-N conditions.

同时利用一套双向导入系群体，分别在正常和低氮条件下考察相应形态指标、生理指标和产量性状。

3.The study of plant genetics often involves analyzing introgressive 渗入式 hybridization to understand species evolution.

植物遗传学的研究通常涉及分析introgressive 渗入式 杂交，以理解物种进化。

4.Researchers observed introgressive 渗入式 gene flow between two closely related fish species in the lake.

研究人员观察到湖中两种密切相关的鱼类之间存在introgressive 渗入式 基因流动。

5.The introgressive 渗入式 traits in the wildflower populations indicate a complex history of interbreeding.

野花种群中的introgressive 渗入式 特征表明了复杂的杂交历史。

6.Understanding introgressive 渗入式 hybridization can help in conservation efforts of endangered species.

理解introgressive 渗入式 杂交可以帮助保护濒危物种的努力。

7.The introgressive 渗入式 exchange of genes was crucial for the adaptation of the population to changing environments.

基因的introgressive 渗入式 交换对种群适应环境变化至关重要。

作文

In the field of biology, particularly in genetics and evolutionary studies, the term introgressive refers to a specific type of gene flow that occurs between two distinct species or populations. This phenomenon can lead to the introduction of new genetic material into a population, which can enhance its adaptability and survival. Understanding the concept of introgressive hybridization is crucial for conservation efforts, as it can help scientists identify how species interact and evolve over time. One of the most fascinating aspects of introgressive hybridization is its role in the evolution of species. For example, in plant species, introgressive hybridization can result in the formation of new varieties that possess desirable traits, such as increased resistance to diseases or improved yield. This process is not limited to plants; it also occurs in animal species. The gray wolf, for instance, has been known to interbreed with domestic dogs, leading to introgressive gene flow that can affect the genetic diversity of both populations. This blending of genes can introduce new traits that may be beneficial for survival in changing environments. However, the concept of introgressive hybridization is not without its challenges. While it can promote genetic diversity, it can also threaten the integrity of endangered species. When two species interbreed, there is a risk that the unique characteristics of one species may be diluted or lost altogether. Conservationists must carefully monitor these interactions to ensure that they do not compromise the survival of vulnerable species. In some cases, introgressive hybridization can lead to the extinction of a pure species if the hybrid offspring are more fit and outcompete the original population. Moreover, introgressive hybridization raises important questions about species classification and the definition of what constitutes a species. Traditional views of species boundaries are often based on reproductive isolation, but introgressive hybridization blurs these lines. As our understanding of genetics evolves, so too must our definitions and classifications of species. This has significant implications for biodiversity conservation, as it challenges us to rethink how we approach the protection of species that are not as genetically distinct as we once believed. In conclusion, the term introgressive encapsulates a vital concept in the study of genetics and evolution. It highlights the dynamic nature of species interactions and the complexities involved in gene flow. As we continue to explore the intricacies of biodiversity, recognizing the importance of introgressive hybridization will be essential for effective conservation strategies. By embracing the fluidity of species boundaries and the potential benefits of genetic exchange, we can better understand the resilience of life on Earth and work towards preserving it for future generations.

在生物学领域，特别是在遗传学和进化研究中，术语introgressive指的是两种不同物种或种群之间发生的特定类型的基因流动。这种现象可以导致新的遗传物质被引入到一个种群中，从而增强其适应性和生存能力。理解introgressive杂交的概念对于保护工作至关重要，因为它可以帮助科学家识别物种如何相互作用并随时间演化。 introgressive杂交最引人注目的方面之一是它在物种进化中的作用。例如，在植物物种中，introgressive杂交可以导致新变种的形成，这些变种具有期望的特性，例如对疾病的抵抗力增强或产量提高。这个过程不仅限于植物；它也发生在动物物种中。例如，灰狼就已知与家犬杂交，导致了introgressive基因流动，这可能影响两个种群的遗传多样性。这种基因的融合可以引入可能对适应变化环境有利的新特征。 然而，introgressive杂交的概念并非没有挑战。虽然它可以促进遗传多样性，但也可能威胁到濒危物种的完整性。当两种物种杂交时，存在一种风险，即一种物种的独特特征可能会被稀释或完全丧失。保护主义者必须仔细监测这些相互作用，以确保它们不会妨碍脆弱物种的生存。在某些情况下，introgressive杂交可能导致纯种物种的灭绝，如果杂交后代更适合并且竞争原始种群。 此外，introgressive杂交提出了关于物种分类和物种定义的重要问题。传统的物种边界观通常基于生殖隔离，但introgressive杂交模糊了这些界限。随着我们对遗传学的理解不断发展，我们对物种的定义和分类也必须随之改变。这对生物多样性保护具有重要意义，因为它挑战我们重新思考如何保护那些并不像我们曾经认为的那样在遗传上明显不同的物种。 总之，术语introgressive概括了遗传学和进化研究中的一个重要概念。它突显了物种相互作用的动态性质以及基因流动的复杂性。随着我们继续探索生物多样性的复杂性，认识到introgressive杂交的重要性将是有效保护策略的关键。通过接受物种边界的流动性和遗传交流的潜在益处，我们可以更好地理解地球生命的韧性，并为保护其未来世代而努力。