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添加6字节 、 2021年7月22日 (四) 09:59
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In developmental biology, pattern formation describes the mechanism by which initially equivalent cells in a developing tissue in an embryo assume complex forms and functions. Embryogenesis, such as of the fruit fly Drosophila, involves coordinated control of cell fates. Pattern formation is genetically controlled, and often involves each cell in a field sensing and responding to its position along a morphogen gradient, followed by short distance cell-to-cell communication through cell signaling pathways to refine the initial pattern. In this context, a field of cells is the group of cells whose fates are affected by responding to the same set positional information cues. This conceptual model was first described as the French flag model in the 1960s. More generally, the morphology of organisms is patterned by the mechanisms of evolutionary developmental biology, such as changing the timing and positioning of specific developmental events in the embryo.
 
In developmental biology, pattern formation describes the mechanism by which initially equivalent cells in a developing tissue in an embryo assume complex forms and functions. Embryogenesis, such as of the fruit fly Drosophila, involves coordinated control of cell fates. Pattern formation is genetically controlled, and often involves each cell in a field sensing and responding to its position along a morphogen gradient, followed by short distance cell-to-cell communication through cell signaling pathways to refine the initial pattern. In this context, a field of cells is the group of cells whose fates are affected by responding to the same set positional information cues. This conceptual model was first described as the French flag model in the 1960s. More generally, the morphology of organisms is patterned by the mechanisms of evolutionary developmental biology, such as changing the timing and positioning of specific developmental events in the embryo.
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在发育生物学中,斑图生成描述了胚胎组织发育中最初相同的细胞逐步呈现出复杂形态和功能的机制。以果蝇为例,'''<font color="#ff8000">胚胎发育 Embryogenesis</font>''' 涉及到细胞命运的协调控制。斑图生成是由遗传基因所控制,通常涉及一个场中的每个细胞沿着形态发生素梯度感知和响应其位置,然后通过细胞信号通路进行短距离的细胞间通信以完善初始斑图。在此背景下,'''<font color="#32CD32">细胞场 A Field of Cells</font>''' 是指通过响应同一组位置信息线索而影响其命运的一组细胞。这个概念模型最早在20世纪60年代被描述为法旗模型。一般地,生物体的形态是由进化发育生物学的机制,如改变胚胎中特定发育事件的时间和位置所决定的。
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在发育生物学中,斑图生成描述了胚胎组织发育中最初相同的细胞逐步呈现出复杂形态和功能的机制。以果蝇为例,'''<font color="#ff8000">胚胎发育 Embryogenesis</font>''' 涉及到细胞命运的协调控制。斑图生成是由遗传基因所控制,通常涉及一个场中的每个细胞沿着形态发生素梯度感知和响应其位置,然后通过细胞信号通路进行短距离的细胞间通信以完善初始斑图。在此背景下,'''<font color="#32CD32">细胞场 A Field of Cells</font>''' 是指通过响应同一组位置信息线索而影响其细胞命运的一组细胞。这个概念模型最早在20世纪60年代被描述为法旗模型。一般地,生物体的形态是由进化发育生物学的机制,如改变胚胎中特定发育事件的时间和位置所决定的。
     
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