{"title":"海胆早期发育的模拟描述了定向细胞分裂在桑葚胚向囊胚过渡中的作用","authors":"Lawrence Bodenstein","doi":"10.1016/j.mod.2020.103606","DOIUrl":null,"url":null,"abstract":"<div><p>The sea urchin morula to blastula transition has long been thought to require oriented cell divisions and blastomere adherence to the enveloping hyaline layer. In a computer simulation model, cell divisions constrained by a <em>surface plane division rule</em> are adequate to effect morphological transition. The hyaline membrane acts as an enhancer but is not essential. The model is consistent with the orientation of micromere divisions and the open blastulae of direct developing species. The surface plane division rule precedes overt epithelization of surface cells and acts to organize the developing epithelium. It is a universal feature of early metazoan development and simulations of non-echinoid cleavage patterns support its role throughout Metazoa. The surface plane division rule requires only local cues and cells need not reference global positional information or embryonic axes.</p></div>","PeriodicalId":49844,"journal":{"name":"Mechanisms of Development","volume":"162 ","pages":"Article 103606"},"PeriodicalIF":2.6000,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mod.2020.103606","citationCount":"6","resultStr":"{\"title\":\"Simulations of sea urchin early development delineate the role of oriented cell division in the morula-to-blastula transition\",\"authors\":\"Lawrence Bodenstein\",\"doi\":\"10.1016/j.mod.2020.103606\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The sea urchin morula to blastula transition has long been thought to require oriented cell divisions and blastomere adherence to the enveloping hyaline layer. In a computer simulation model, cell divisions constrained by a <em>surface plane division rule</em> are adequate to effect morphological transition. The hyaline membrane acts as an enhancer but is not essential. The model is consistent with the orientation of micromere divisions and the open blastulae of direct developing species. The surface plane division rule precedes overt epithelization of surface cells and acts to organize the developing epithelium. It is a universal feature of early metazoan development and simulations of non-echinoid cleavage patterns support its role throughout Metazoa. The surface plane division rule requires only local cues and cells need not reference global positional information or embryonic axes.</p></div>\",\"PeriodicalId\":49844,\"journal\":{\"name\":\"Mechanisms of Development\",\"volume\":\"162 \",\"pages\":\"Article 103606\"},\"PeriodicalIF\":2.6000,\"publicationDate\":\"2020-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/j.mod.2020.103606\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Mechanisms of Development\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0925477320300113\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Medicine\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mechanisms of Development","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0925477320300113","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Medicine","Score":null,"Total":0}
Simulations of sea urchin early development delineate the role of oriented cell division in the morula-to-blastula transition
The sea urchin morula to blastula transition has long been thought to require oriented cell divisions and blastomere adherence to the enveloping hyaline layer. In a computer simulation model, cell divisions constrained by a surface plane division rule are adequate to effect morphological transition. The hyaline membrane acts as an enhancer but is not essential. The model is consistent with the orientation of micromere divisions and the open blastulae of direct developing species. The surface plane division rule precedes overt epithelization of surface cells and acts to organize the developing epithelium. It is a universal feature of early metazoan development and simulations of non-echinoid cleavage patterns support its role throughout Metazoa. The surface plane division rule requires only local cues and cells need not reference global positional information or embryonic axes.
期刊介绍:
Mechanisms of Development is an international journal covering the areas of cell biology and developmental biology. In addition to publishing work at the interphase of these two disciplines, we also publish work that is purely cell biology as well as classical developmental biology.
Mechanisms of Development will consider papers in any area of cell biology or developmental biology, in any model system like animals and plants, using a variety of approaches, such as cellular, biomechanical, molecular, quantitative, computational and theoretical biology.
Areas of particular interest include:
Cell and tissue morphogenesis
Cell adhesion and migration
Cell shape and polarity
Biomechanics
Theoretical modelling of cell and developmental biology
Quantitative biology
Stem cell biology
Cell differentiation
Cell proliferation and cell death
Evo-Devo
Membrane traffic
Metabolic regulation
Organ and organoid development
Regeneration
Mechanisms of Development does not publish descriptive studies of gene expression patterns and molecular screens; for submission of such studies see Gene Expression Patterns.