The lateral somitic frontier in ontogeny and phylogeny.
The lateral somitic frontier in ontogeny and phylogeny.
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个体发育和系统发育中的侧体细胞边界。
DOI：
10.1002/jez.b.21246
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Burke,AnnCampbell
中科院分区：
文献类型：
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作者：
Shearman,RebeccaMarie;Burke,AnnCampbell
脊椎动物的肌肉骨骼系统包括中轴系统和外骨骼系统。颅后中轴系统由椎骨、肋骨和相关的肌肉组成，而附肢系统包括成对附肢的肌肉和骨骼以及它们各自的带。这些部分的形态、比例和排列在脊椎动物的历史上经历了巨大的变化。尽管脊椎动物有这种多样性，但在发育过程中形成肌肉骨骼系统所有关键部分的细胞来自两个胚胎中胚层群体，体节和体细胞侧板。Nowicki等人（2003年）。Mech Dev 120：227-240）鉴定了发育中的鸡胚中的两个动态结构域。原轴结构域仅由体节的细胞占据。远轴域包括在侧板衍生的结缔组织内发育的肌肉和骨。这两个领域之间的边界是横向体节边界。我们假设，primaxial和abaxial域图案独立的和形态学的进化的肌肉骨骼系统是促进部分独立的发展变化的abaxial和primaxial域。在这里，我们详细介绍了我们的假设，并回顾了最近的实验和比较研究，使用的概念，侧体节前沿的高度衍生的龟类和无肢有鳞动物的身体计划的演变分析。J. Exp. Zool.（Mol. Dev. Evol.）© 2008 Wiley-Liss，Inc.
The vertebrate musculoskeletal system comprises the axial and appendicular systems. The postcranial axial system consists of the vertebrae, ribs and associated muscles, and the appendicular system comprises the muscles and skeleton of the paired appendages and their respective girdles. The morphology, proportions, and arrangements of these parts have undergone tremendous variation during vertebrate history. Despite this vertebrate diversity, the cells that form all of the key parts of the musculoskeletal system during development arise from two populations of embryonic mesoderm, the somites and somatic lateral plate. Nowicki et al.(2003. Mech Dev 120: 227–240) identified two dynamic domains in the developing chick embryo. The primaxial domain is populated exclusively by cells from the somites. The abaxial domain includes muscle and bone that develop within lateral plate-derived connective tissue. The boundary between the two domains is the lateral somitic frontier. We hypothesize that the primaxial and abaxial domains are patterned independently and that morphological evolution of the musculoskeletal system is facilitated by partially independent developmental changes in the abaxial and primaxial domain. Here we present our hypothesis in detail and review recent experimental and comparative studies that use the concept of the lateral somitic frontier in the analysis of the evolution of the highly derived chelonian and limbless squamate body plans. J. Exp. Zool.(Mol. Dev. Evol.) 312B: 603–612, 2009.© 2008 Wiley-Liss, Inc.