tetraploid

简明释义

英[ˈtetrəˌplɔɪd]美[ˈtetrəˌplɔɪd]

adj. 四倍体的

n. 四套染色体

英英释义

单词用法

同义词

反义词

例句

1.Since the first tetraploid watermelon was obtained in 1939, polyploidy breeding has always been the focus of watermelon breeding.

从1939年获得第一个四倍体西瓜以来，多倍体育种就一直是西瓜育种的一个热点。

2.Apart from this study, we also researched photosynthesis, stomatal conductance of the tetraploid plants and the control ones.

除此之外还研究了四倍体植株叶片的光合速率、气孔导度的日变化的情况。

3.Tissue culture was a new and efficient way to obtain tetraploid melon.

组织培养可以成为获得四倍体甜瓜的有效途径。

4.Facultative apospory in tetraploid paspalum distichum l.

四倍体双穗雀稗兼性无孢子生殖的研究。

5.Tissue culture was a new and efficient way to obtain tetraploid...

组织培养可以成为获得四倍体甜瓜的有效途径。

6.The bacteria multiply rapidly within the tetraploid cells and become surrounded by a membrane synthesized by the host plant.

细菌在四倍体细胞中快速繁殖，并逐渐被宿主植物合成的膜所包围。

7.Thus, it is important that elucidate the genetic control of the crossability of Chinese tetraploid wheat with rye.

因此，研究中国四倍体小麦的亲和性问题具有特殊的意义。

8.The plant species is classified as a tetraploid 四倍体, which means it has four sets of chromosomes.

这种植物物种被分类为四倍体，这意味着它有四套染色体。

9.The genetic makeup of a tetraploid 四倍体 organism allows for greater variability in traits.

一个四倍体生物的遗传构成允许特征的更大变异性。

10.In some species, tetraploid 四倍体 individuals are more resilient to environmental stress.

在某些物种中，四倍体个体对环境压力更具韧性。

11.Researchers are studying the effects of being tetraploid 四倍体 on the growth rate of certain crops.

研究人员正在研究成为四倍体对某些作物生长速度的影响。

12.Many cultivated plants, such as wheat, are tetraploid 四倍体, which contributes to their larger size and yield.

许多栽培植物，如小麦，是四倍体，这有助于它们的更大尺寸和产量。

作文

In the field of genetics, the term tetraploid refers to an organism or cell that contains four complete sets of chromosomes. This condition is significant in both plant and animal biology, as it can lead to increased genetic diversity and adaptability. For instance, many agricultural crops, such as wheat and cotton, are tetraploid species. These plants often exhibit enhanced traits such as larger size, improved resistance to diseases, and greater yield potential compared to their diploid counterparts, which have only two sets of chromosomes. The phenomenon of tetraploidy can occur naturally through various mechanisms, including hybridization and errors during cell division. In some cases, it can also be induced artificially through chemical treatments or breeding techniques.Understanding the role of tetraploid organisms in evolution is crucial for biologists. Polyploidy, the condition of having more than two sets of chromosomes, is believed to play a significant role in the speciation process. When a tetraploid organism arises, it is often reproductively isolated from its diploid relatives, leading to the development of new species over time. This isolation can create opportunities for the tetraploid species to adapt to different ecological niches, thereby contributing to biodiversity.In agriculture, the manipulation of tetraploid crops has been a focus of research and development. Scientists and farmers have discovered that tetraploid varieties can outperform their diploid relatives in terms of yield and resilience. For example, tetraploid wheat has been shown to produce higher grain yields and better withstand environmental stressors such as drought. This has led to increased interest in breeding programs aimed at developing new tetraploid varieties that can thrive in changing climate conditions.Moreover, the study of tetraploid organisms can provide insights into the mechanisms of cancer and other diseases in humans. Many cancer cells exhibit polyploidy, suggesting a link between chromosome number and disease progression. By understanding how tetraploid cells behave, researchers hope to uncover new therapeutic strategies for treating cancers characterized by abnormal chromosome numbers.In conclusion, the concept of tetraploid organisms extends far beyond mere definitions in textbooks. It encompasses a wide range of implications for genetics, agriculture, ecology, and medicine. The ability to harness the benefits of tetraploidy can lead to advancements in crop production, conservation of biodiversity, and medical research. As we continue to explore the complexities of genetics, the importance of understanding tetraploid organisms will undoubtedly grow, shaping our approach to both natural and engineered systems in profound ways.

在遗传学领域，术语四倍体指的是含有四套完整染色体的生物或细胞。这种情况在植物和动物生物学中都具有重要意义，因为它可以导致基因多样性和适应性的增加。例如，许多农业作物，如小麦和棉花，都是四倍体物种。这些植物通常表现出比其二倍体同类（仅有两套染色体）更优越的特性，如更大的体型、提高的抗病能力和更高的产量潜力。四倍体现象可以通过多种机制自然发生，包括杂交和细胞分裂过程中的错误。在某些情况下，也可以通过化学处理或育种技术人工诱导。理解四倍体生物在进化中的作用对生物学家至关重要。多倍体，即拥有超过两套染色体的状态，被认为在物种形成过程中发挥了重要作用。当一个四倍体生物出现时，它常常与其二倍体亲属在生殖上隔离，从而导致新物种的逐渐形成。这种隔离可以为四倍体物种适应不同生态位创造机会，从而促进生物多样性。在农业中，操控四倍体作物一直是研究和开发的重点。科学家和农民发现，四倍体品种在产量和韧性方面往往优于其二倍体亲属。例如，四倍体小麦被证明能够产生更高的谷物产量，并更好地抵御干旱等环境压力。这导致了对开发能够在气候变化条件下茁壮成长的新四倍体品种的育种计划的兴趣增加。此外，研究四倍体生物可以为我们提供关于癌症和其他人类疾病机制的见解。许多癌细胞表现出多倍体，暗示着染色体数量与疾病进展之间存在联系。通过理解四倍体细胞的行为，研究人员希望揭示治疗以异常染色体数为特征的癌症的新策略。总之，四倍体生物的概念远不止于教科书中的定义。它涵盖了遗传学、农业、生态学和医学等广泛的影响。利用四倍体的优势可以推动作物生产、保护生物多样性和医学研究的进步。随着我们继续探索遗传学的复杂性，理解四倍体生物的重要性无疑会不断增长，从而深刻影响我们对自然和工程系统的看法。