{"title":"染色体在减数分裂和有丝分裂纺锤体组装中的作用。","authors":"R Tournebize, R Heald, A Hyman","doi":"10.1007/978-1-4615-5371-7_22","DOIUrl":null,"url":null,"abstract":"<p><p>The assembly of a mitotic spindle requires the interaction of microtubules with chromosomes. As a cell enters mitosis, long microtubules are converted to short ones, as microtubules become unstable. Dynamic microtubules are then stabilised by chromosomes, forming a bipolar spindle. In this review, we discuss the different roles of kinetochores and chromosome arms during spindle assembly. Kinetochores, required for proper chromosomes segregation, capture microtubules and maintain attachment. Chromosome arms greatly enhance microtubule stability, and alone can be sufficient for spindle assembly.</p>","PeriodicalId":79529,"journal":{"name":"Progress in cell cycle research","volume":"3 ","pages":"271-84"},"PeriodicalIF":0.0000,"publicationDate":"1997-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"14","resultStr":"{\"title\":\"Role of chromosomes in assembly of meiotic and mitotic spindles.\",\"authors\":\"R Tournebize, R Heald, A Hyman\",\"doi\":\"10.1007/978-1-4615-5371-7_22\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The assembly of a mitotic spindle requires the interaction of microtubules with chromosomes. As a cell enters mitosis, long microtubules are converted to short ones, as microtubules become unstable. Dynamic microtubules are then stabilised by chromosomes, forming a bipolar spindle. In this review, we discuss the different roles of kinetochores and chromosome arms during spindle assembly. Kinetochores, required for proper chromosomes segregation, capture microtubules and maintain attachment. Chromosome arms greatly enhance microtubule stability, and alone can be sufficient for spindle assembly.</p>\",\"PeriodicalId\":79529,\"journal\":{\"name\":\"Progress in cell cycle research\",\"volume\":\"3 \",\"pages\":\"271-84\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1997-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"14\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Progress in cell cycle research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1007/978-1-4615-5371-7_22\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in cell cycle research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1007/978-1-4615-5371-7_22","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Role of chromosomes in assembly of meiotic and mitotic spindles.
The assembly of a mitotic spindle requires the interaction of microtubules with chromosomes. As a cell enters mitosis, long microtubules are converted to short ones, as microtubules become unstable. Dynamic microtubules are then stabilised by chromosomes, forming a bipolar spindle. In this review, we discuss the different roles of kinetochores and chromosome arms during spindle assembly. Kinetochores, required for proper chromosomes segregation, capture microtubules and maintain attachment. Chromosome arms greatly enhance microtubule stability, and alone can be sufficient for spindle assembly.
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