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Updated: May 30, 2025

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类动物中新奇复杂形态特征的发育起源

Antónia Monteiro¹, Suriya Narayanan Murugesan¹, Anupama Prakash²

¹Department of Biological Sciences, National University of Singapore, Singapore;

Annual review of entomology

|January 28, 2025

概括

基因调节网络 (GRNs) 解释了类动物新型特征的演变,包括幼虫的前腿和成人的翅膀模式. 这些研究揭示了祖先的GRNs是如何被修改或选择用于新功能的.

科学领域:

发展生物学发展生物学
进化遗传学进化遗传学
昆虫形态学昆虫形态学

背景情况:

类 (Lepidoptera) 排列表现出独特的特征,如幼虫的前腿和成人的翅膀图案 (眼球,带,).
了解这些新型特征的遗传基础对于进化发育生物学至关重要.

研究的目的:

审查最近关于四个关键的Lepidoptera特征的发育起源和多样化的研究.
从基因调节网络 (GRN) 的角度分析这些特征.

主要方法:

审查现有的关于Lepidoptera特征演变的文献.
分析与特征发展相关的基因表达模式和调控元素.
比较基因组学以确定共享和新型监管元素.

主要成果:

长腿和眼斑是从不同的,被选中的祖先GRN进化而来的.
的产生是由于感觉毛皮GRN.GRN.中的修饰.
翅膀带模式涉及特定的基因,如WntA,Distal-less和spalt,不同的基因调节基底/中心与边缘带.
颜色GRN是背景翅膀颜色的关键.

结论:

基因调节网络为理解新型白虫特征的演变提供了一个框架.
共享和新的Cis调节元素有助于追踪这些特征的进化历史.
未来的研究应该集中在特征进化中的GRN选择/修改和细胞类型特异性.

关键词:

腹部的腿部和腹部的腿部.合作选择的选择.基因调节网络是基因调节网络.小说小说小说小说尺度的尺度的尺度的尺度.翅膀的图案翅膀的图案

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Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.