中国科学院水生生物研究所机构知识库
Advanced  
IHB OpenIR  > 中科院水生所知识产出(2009年前)  > 期刊论文
学科主题: Biology
题名: Margulis' theory on division of labour in cells revisited
作者: Niu, DK; Chen, JK; Liu, YD
通讯作者: Niu, DK, Univ Toulouse 3, CESAC, CNRS, UMR 5576, 118 Route Narbonne, F-31062 Toulouse, France
关键词: CYCLE
刊名: ACTA BIOTHEORETICA
发表日期: 2001-03-01
卷: 49, 期:1, 页:23-28
收录类别: SCI
文章类型: Article
部门归属: Chinese Acad Sci, Inst Hydrobiol, Dept Phycol, Wuhan 430072, Hubei, Peoples R China; Fudan Univ, Sch Life Sci, Inst Biodivers Sci, Shanghai 200433, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Mathematical & Computational Biology
研究领域[WOS]: Mathematical & Computational Biology
摘要: Division of labour is a marked feature of multicellular organisms. Margulis proposed that the ancestors of metazoans had only one microtubule organizing center (MTOC), so they could not move and divide simultaneously. Selection for simultaneous movement and cell division had driven the division of labour between cells. However, no evidence or explanation for this assumption was provided. Why could the unicellular ancetors not have multiple MTOCs? The gain and loss of three possible strategies are discussed. It was found that the advantage of one or two MTOC per cell is environment-dependent. Unicellular organisms with only one MTOC per cell are favored only in resource-limited environments without strong predatory pressure. If division of labour occurring in a bicellular organism just makes simultaneous movement and cell division possible, the possibility of its fixation by natural selection is very low because a somatic cell performing the function of an MTOC is obviously wasting resources. Evolutionary biologists should search for other selective forces for division of labour in cells.
英文摘要: Division of labour is a marked feature of multicellular organisms. Margulis proposed that the ancestors of metazoans had only one microtubule organizing center (MTOC), so they could not move and divide simultaneously. Selection for simultaneous movement and cell division had driven the division of labour between cells. However, no evidence or explanation for this assumption was provided. Why could the unicellular ancetors not have multiple MTOCs? The gain and loss of three possible strategies are discussed. It was found that the advantage of one or two MTOC per cell is environment-dependent. Unicellular organisms with only one MTOC per cell are favored only in resource-limited environments without strong predatory pressure. If division of labour occurring in a bicellular organism just makes simultaneous movement and cell division possible, the possibility of its fixation by natural selection is very low because a somatic cell performing the function of an MTOC is obviously wasting resources. Evolutionary biologists should search for other selective forces for division of labour in cells.
关键词[WOS]: CYCLE
语种: 英语
WOS记录号: WOS:000168191700002
ISSN号: 0001-5342
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/10014
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Margulis' theory on division of labour in cells revisited.pdf(59KB)----开放获取--View Download

作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Dept Phycol, Wuhan 430072, Hubei, Peoples R China
2.Fudan Univ, Sch Life Sci, Inst Biodivers Sci, Shanghai 200433, Peoples R China

Recommended Citation:
Deng K.Niu;Jia-kuan Chen &Yong-ding Liu.Margulis' theory on division of labour in cells revisited,ACTA BIOTHEORETICA,2001,49(1):23-28
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Niu, DK]'s Articles
[Chen, JK]'s Articles
[Liu, YD]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Niu, DK]‘s Articles
[Chen, JK]‘s Articles
[Liu, YD]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Margulis' theory on division of labour in cells revisited.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院水生生物研究所 - Feedback
Powered by CSpace