Kinetics and specificity of paternal mitochondrial elimination in Caenorhabditis elegans.
Kinetics and specificity of paternal mitochondrial elimination in Caenorhabditis elegans.
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DOI:
10.1038/ncomms12569
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发表时间:
2016-09-01
影响因子:
16.6
通讯作者:
Xue, Ding
中科院分区:
文献类型:
--
作者:
Wang, Yang;Zhang, Yi;Chen, Lianwan;Liang, Qian;Yin, Xiao-Ming;Miao, Long;Kang, Byung-Ho;Xue, Ding
In most eukaryotes, mitochondria are inherited maternally. The autophagy process is critical for paternal mitochondrial elimination (PME) in Caenorhabditis elegans, but how paternal mitochondria, but not maternal mitochondria, are selectively targeted for degradation is poorly understood. Here we report that mitochondrial dynamics have a profound effect on PME. A defect in fission of paternal mitochondria delays PME, whereas a defect in fusion of paternal mitochondria accelerates PME. Surprisingly, a defect in maternal mitochondrial fusion delays PME, which is reversed by a fission defect in maternal mitochondria or by increasing maternal mitochondrial membrane potential using oligomycin. Electron microscopy and tomography analyses reveal that a proportion of maternal mitochondria are compromised when they fail to fuse normally, leading to their competition for the autophagy machinery with damaged paternal mitochondria and delayed PME. Our study indicates that mitochondrial dynamics play a critical role in regulating both the kinetics and the specificity of PME. Autophagy mediates the degradation of paternal mitochondria after fertilization in C. elegans to ensure that mitochondria are inherited maternally. Here the authors show that mitochondrial dynamics is critical for the selectivity and kinetics of paternal mitochondrial elimination.
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影响因子:
21.3
作者:
通讯作者:
--
DOI:
10.1126/science.1196371
发表时间:
2011-01-28
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
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通讯作者:
Shaw RJ
DOI:
10.1083/jcb.200412022
发表时间:
2005-05-09
期刊:
The Journal of cell biology
影响因子:
--
作者:
Komatsu M;Waguri S;Ueno T;Iwata J;Murata S;Tanida I;Ezaki J;Mizushima N;Ohsumi Y;Uchiyama Y;Kominami E;Tanaka K;Chiba T
通讯作者:
Chiba T
影响因子:
12.3
作者:
通讯作者:
--
DOI:
10.1146/annurev-genom-082509-141720
发表时间:
2010
影响因子:
8.7
作者:
Calvo SE;Mootha VK
通讯作者:
Mootha VK