Centrosome loss in the evolution of planarians.
Centrosome loss in the evolution of planarians.
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DOI:
10.1126/science.1214457
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发表时间:
2012-01-27
期刊:
影响因子:
--
通讯作者:
Marshall WF
中科院分区:
文献类型:
--
作者:
Azimzadeh J;Wong ML;Downhour DM;Sánchez Alvarado A;Marshall WF
The centrosome, a cytoplasmic organelle formed by cylinder-shaped centrioles surrounded by a microtubule-organizing matrix, is a hallmark of animal cells. The centrosome is conserved and essential for the development of all animal species described so far. Here, we show that, unlike the rest of animals, planarians and possibly other flatworms as well completely lack centrosomes. We found that in planarians, centrioles are only assembled in terminally differentiating ciliated cells through a so-called acentriolar pathway to trigger the assembly of cilia. This unique characteristic allowed us to identify a large set of conserved proteins required for centriole assembly in animals, as well as the centrosome signature proteins missing from the planarian genome. Our study uncovers the molecular architecture and evolution of the animal centrosome and emphasizes the plasticity of animal cell biology and development.
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DOI:
10.1083/jcb.200908114
发表时间:
2010-01-25
期刊:
The Journal of cell biology
影响因子:
--
作者:
Delaval B;Doxsey SJ
通讯作者:
Doxsey SJ
DOI:
10.1126/science.1178712
发表时间:
2009-12-04
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Rink JC;Gurley KA;Elliott SA;Sánchez Alvarado A
通讯作者:
Sánchez Alvarado A
影响因子:
2.6
作者:
TYLER, S
通讯作者:
TYLER, S
影响因子:
9.2
作者:
Stevens, Naomi R.;Raposo, Alexandre A. S. F.;Basto, Renata;St Johnston, Daniel;Raff, Jordan W.
通讯作者:
Raff, Jordan W.
影响因子:
9.2
作者:
Azimzadeh, Juliette;Marshall, Wallace F.
通讯作者:
Marshall, Wallace F.