introgression

简明释义

英[ˌɪntrəˈɡreʃən]美[ˌɪntrəˈɡreʃn]

n. 基因渗入；渐渗现象

英英释义

单词用法

同义词

反义词

例句

1.And also typical wild soybeans were inferred to have had introgression from cultivated soybeans.

并推测典型野生大豆也可能与栽培大豆发生过基因交流。

2.This paper reviews establishment of introgression lines from wild tomato in Lycopersicon by MAS and application of theses lines in fine mapping, analysis of QTL effect and gene map-based cloning.

本文综述了野生番茄单片段渐渗系的创建及其在基因精细定位、QTL遗传效应分析以及图位克隆中的应用。

3.The introgression lines developed in this study provided materials for mining favorable genes, and investigating the evolution of maize.

该大刍草渗透系的构建对研究玉米和大刍草的进化关系和发掘大刍草中的有利基因均具有重要意义。

4.The reticulate evolution caused by hybridization, introgression and lineage sorting may be an explanation for the molecular phylogenetic incongruence.

叶绿体系统树与核基因系统树之间的冲突，可能是由杂交、渐渗、谱系分选造成的网状进化引起的。

5.Meanwhile, MAALs can be used to study the introgression mechanism and the pairing status of homologous chromosomes.

同时， 也便于研究同源染色体的渗入机制和配对状态。

6.The results showed that the 4 traits of the 2 introgression lines had significant difference from Laizhou953.

结果表明，2个导入系4个性状的表现与莱州953相比均达到了极显著水平。

7.The role of introgression in shaping the genetic variation pattern of the species should be seen in the same light.

在形成种的遗传变异型中，种质渗入所引起的作用也应当用同样的见地来看待。

8.This paper reviews establishment of introgression lines from wild tomato in Lycopersicon by MAS and application of theses lines in fine mapping, analysis of QTL effect and gene map-based cloning.

本文综述了野生番茄单片段渐渗系的创建及其在基因精细定位、QTL遗传效应分析以及图位克隆中的应用。

9.The study of introgression revealed how genes from wild relatives can enhance crop resilience.

对基因渗入的研究揭示了野生亲缘种如何增强农作物的抗逆性。

10.Researchers are investigating the effects of introgression on the evolution of hybrid species.

研究人员正在调查基因渗入对杂交物种进化的影响。

11.The introgression of beneficial traits from one species to another can improve overall biodiversity.

从一个物种到另一个物种的基因渗入可以改善整体生物多样性。

12.Conservationists are concerned about the introgression of domestic genes into wild populations.

保护主义者担心家养基因对野生种群的基因渗入。

13.Genetic introgression is a key factor in the adaptability of certain fish species to changing environments.

基因渗入是某些鱼类物种适应变化环境的关键因素。

作文

Introgression is a term that refers to the incorporation of genetic material from one species into the gene pool of another through hybridization and backcrossing. This concept is particularly significant in the fields of evolutionary biology and genetics, as it helps explain how species adapt to changing environments and how new traits can emerge within populations. Understanding introgression (基因渗入) is crucial for studying biodiversity and the evolutionary processes that shape life on Earth. One of the most fascinating aspects of introgression (基因渗入) is its role in plant and animal breeding. For example, crop plants often undergo introgression (基因渗入) to enhance desirable traits such as disease resistance or drought tolerance. By crossing a cultivated variety with a wild relative, breeders can introduce new genes that provide these advantageous characteristics. This process not only improves agricultural productivity but also contributes to food security in a world facing climate change and population growth. In addition to agriculture, introgression (基因渗入) plays a vital role in natural ecosystems. Many species have evolved through the exchange of genetic material, allowing them to adapt to their environments more effectively. For instance, some fish species exhibit introgression (基因渗入) between closely related species, which can result in hybrid vigor. These hybrids may possess traits that enable them to thrive in specific habitats, thereby increasing their chances of survival and reproduction. However, introgression (基因渗入) is not without its challenges. In some cases, the introduction of foreign genes can lead to negative consequences, such as outcompeting native species or disrupting local ecosystems. For example, when non-native species hybridize with indigenous ones, it may dilute the genetic integrity of the native population, leading to a loss of unique traits and potentially driving them to extinction. Therefore, understanding the dynamics of introgression (基因渗入) is essential for conservation efforts and managing biodiversity. Researchers are increasingly using advanced genomic techniques to study introgression (基因渗入) at a molecular level. By analyzing the genomes of different species, scientists can identify specific regions of the genome that have been affected by introgression (基因渗入). This information provides valuable insights into the evolutionary history of species and can inform conservation strategies aimed at preserving genetic diversity. In conclusion, introgression (基因渗入) is a complex and multifaceted process that has significant implications for evolution, agriculture, and conservation. As we face unprecedented environmental challenges, understanding how genetic material flows between species will be crucial for developing sustainable solutions. By harnessing the power of introgression (基因渗入), we can improve crop resilience, protect endangered species, and ultimately ensure a more biodiverse and stable ecosystem for future generations.

基因渗入是一个术语，指的是通过杂交和回交将一种物种的遗传物质纳入另一种物种的基因库。这个概念在进化生物学和遗传学领域尤其重要，因为它有助于解释物种如何适应变化的环境，以及新特征如何在种群中出现。理解基因渗入（introgression）对于研究生物多样性和塑造地球生命的进化过程至关重要。 基因渗入（introgression）的一个最迷人的方面是它在植物和动物育种中的作用。例如，农作物往往通过基因渗入（introgression）来增强诸如抗病性或抗旱性等理想特征。通过将栽培品种与野生亲属杂交，育种者可以引入提供这些优势特征的新基因。这一过程不仅提高了农业生产力，还为应对气候变化和人口增长带来的挑战贡献了粮食安全。 除了农业，基因渗入（introgression）在自然生态系统中也发挥着重要作用。许多物种通过遗传物质的交流而进化，使它们能够更有效地适应环境。例如，一些鱼类物种表现出与近亲物种之间的基因渗入（introgression），这可能导致杂交增效。这些杂交种可能具备使其在特定栖息地中繁荣生存的特征，从而增加它们的生存和繁殖机会。 然而，基因渗入（introgression）并非没有挑战。在某些情况下，外来基因的引入可能会导致负面后果，例如与本土物种竞争或破坏当地生态系统。例如，当非本土物种与本土物种杂交时，可能会稀释本土种群的遗传完整性，导致独特特征的丧失，并可能驱使它们走向灭绝。因此，理解基因渗入（introgression）的动态对于保护工作和管理生物多样性至关重要。 研究人员越来越多地使用先进的基因组技术来研究基因渗入（introgression）的分子水平。通过分析不同物种的基因组，科学家可以识别出受基因渗入（introgression）影响的基因组特定区域。这些信息为了解物种的进化历史提供了宝贵的见解，并可以为旨在保护遗传多样性的保护策略提供信息。 总之，基因渗入（introgression）是一个复杂且多面的过程，对进化、农业和保护具有重要意义。随着我们面临前所未有的环境挑战，理解遗传物质如何在物种之间流动对于开发可持续解决方案至关重要。通过利用基因渗入（introgression）的力量，我们可以提高作物的抗逆性，保护濒危物种，并最终确保未来世代更加多样化和稳定的生态系统。