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Margulis' theory on division of labour in cells revisited
Deng K.Niu; Jia-kuan Chen &Yong-ding Liu; Niu, DK, Univ Toulouse 3, CESAC, CNRS, UMR 5576, 118 Route Narbonne, F-31062 Toulouse, France
2001
Source PublicationACTA BIOTHEORETICA
Volume49Issue:1Pages:23-28
AbstractDivision 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.
KeywordCycle
DepartmentChinese 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
Subject AreaBiology
Indexed BySCI
Language英语
WOS IDWOS:000168191700002
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/10014
Collection期刊论文
Corresponding AuthorNiu, DK, Univ Toulouse 3, CESAC, CNRS, UMR 5576, 118 Route Narbonne, F-31062 Toulouse, France
Recommended Citation
GB/T 7714
Deng K.Niu,Jia-kuan Chen &Yong-ding Liu,Niu, DK, Univ Toulouse 3, CESAC, CNRS, UMR 5576, 118 Route Narbonne, F-31062 Toulouse, France. Margulis' theory on division of labour in cells revisited[J]. ACTA BIOTHEORETICA,2001,49(1):23-28.
APA Deng K.Niu,Jia-kuan Chen &Yong-ding Liu,&Niu, DK, Univ Toulouse 3, CESAC, CNRS, UMR 5576, 118 Route Narbonne, F-31062 Toulouse, France.(2001).Margulis' theory on division of labour in cells revisited.ACTA BIOTHEORETICA,49(1),23-28.
MLA Deng K.Niu,et al."Margulis' theory on division of labour in cells revisited".ACTA BIOTHEORETICA 49.1(2001):23-28.
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