autapomorphic character

简明释义

独有衍征;

英英释义

例句

1.The unique feather pattern of this bird serves as an autapomorphic character in its classification, distinguishing it from other species.

这只鸟独特的羽毛图案作为其分类中的自我特征，将其与其他物种区分开来。

2.The presence of a specific dental formula is an autapomorphic character that indicates this mammal's unique adaptation.

特定牙齿公式的存在是一个自我特征，表明这种哺乳动物的独特适应性。

3.Researchers found that the genetic sequence included an autapomorphic character that was not present in closely related species.

研究人员发现该基因序列包含一个在密切相关物种中不存在的自我特征。

4.An autapomorphic character can often be a key trait used to define a new species in taxonomic studies.

在分类学研究中，自我特征通常是用来定义新物种的关键特征。

5.In the study of evolutionary biology, identifying an autapomorphic character can help clarify the lineage of a species.

在进化生物学研究中，识别一个自我特征可以帮助澄清一个物种的谱系。

作文

In the study of evolutionary biology, understanding the concept of an autapomorphic character is crucial for classifying organisms and tracing their evolutionary history. An autapomorphic character refers to a trait that is unique to a particular species or group, distinguishing it from other related organisms. This characteristic can provide significant insights into the evolutionary processes that have shaped the diversity of life on Earth.For instance, consider the case of the Galápagos finches. These birds exhibit various beak shapes and sizes that have evolved to adapt to different food sources in their specific environments. Each species of finch possesses certain autapomorphic characters, such as the size and shape of their beaks, which are not found in other finch species. By studying these unique traits, scientists can infer how natural selection has acted on these populations over time, leading to the development of distinct species.Moreover, autapomorphic characters play a vital role in phylogenetics, the study of evolutionary relationships among biological entities. When constructing phylogenetic trees, researchers look for these unique traits to help determine the branching patterns of evolution. The presence of an autapomorphic character in a lineage indicates that this trait arose after the divergence from a common ancestor, providing a clearer picture of evolutionary pathways.It is important to differentiate autapomorphic characters from other types of traits, such as synapomorphic characters, which are shared by a group of organisms due to common ancestry. While synapomorphies are essential for identifying clades and understanding shared evolutionary history, autapomorphic characters are more about the uniqueness of a particular lineage. This distinction is critical for biologists when they analyze and interpret the evolutionary significance of various traits.The implications of recognizing autapomorphic characters extend beyond taxonomy and phylogenetics. These unique traits can also have ecological and behavioral significance. For example, a particular autapomorphic character might influence how a species interacts with its environment, such as its feeding habits or mating rituals. Understanding these relationships can help conservationists develop strategies to protect endangered species by recognizing the specific adaptations that enable them to survive in their habitats.In conclusion, the concept of an autapomorphic character is fundamental in the field of evolutionary biology. By identifying and analyzing these unique traits, scientists can gain valuable insights into the evolutionary history of organisms and the processes that drive biodiversity. Whether studying the beaks of finches or the intricate features of other species, recognizing autapomorphic characters allows researchers to piece together the complex puzzle of life's evolution. As we continue to explore the natural world, the importance of these unique characteristics will undoubtedly remain a key focus in understanding the rich tapestry of life on our planet.

在进化生物学的研究中，理解“自体特征”这一概念对于分类生物和追踪它们的进化历史至关重要。“自体特征”是指某一特定物种或群体独有的性状，使其与其他相关生物区分开来。这一特征能够为我们提供关于塑造地球生命多样性的进化过程的重要见解。例如，考虑加拉帕戈斯雀的案例。这些鸟类展现出各种喙的形状和大小，这些特征已经进化以适应它们特定环境中的不同食物来源。每种雀类都有一些特定的“自体特征”，如喙的大小和形状，这些特征在其他雀类中并不存在。通过研究这些独特的特征，科学家可以推断自然选择是如何在这些种群中起作用的，从而导致了不同物种的发展。此外，“自体特征”在系统发育学中也发挥着重要作用，即研究生物实体之间的进化关系。当构建系统发育树时，研究人员会寻找这些独特的特征，以帮助确定进化的分支模式。“自体特征”在一个谱系中的存在表明该特征是在与共同祖先分歧后出现的，从而提供了更清晰的进化路径图。重要的是要区分“自体特征”与其他类型的特征，例如同源特征（即由于共同祖先而被一组生物共享的特征）。虽然同源特征对于识别类群和理解共享的进化历史至关重要，但“自体特征”更多地涉及特定谱系的独特性。这一区别对于生物学家在分析和解释各种特征的进化意义时至关重要。识别“自体特征”的意义超出了分类学和系统发育学。这些独特的特征也可能具有生态和行为上的重要性。例如，某个特定的“自体特征”可能影响一个物种如何与其环境互动，如其觅食习惯或交配仪式。理解这些关系可以帮助保护主义者制定保护濒危物种的战略，通过识别使它们能够在栖息地中生存的特定适应性。总之，“自体特征”的概念在进化生物学领域是基础性的。通过识别和分析这些独特的特征，科学家可以获得关于生物进化历史和推动生物多样性进程的宝贵见解。无论是研究雀类的喙还是其他物种的复杂特征，认识到“自体特征”使研究人员能够拼凑出生命进化的复杂拼图。随着我们继续探索自然世界，这些独特特征的重要性无疑将始终是理解我们星球上生命丰富多彩的关键焦点。