Symmetry breaking in the female germline cyst
Symmetry breaking in the female germline cyst
复制标题
雌性种系囊肿的对称性破缺
DOI:
10.1101/2021.05.07.443143
复制
发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Nashchekin D
中科院分区:
文献类型:
--
作者:
Nashchekin D
In mammals and flies, only one cell in a multicellular female germline cyst becomes an oocyte, but how symmetry is broken to select the oocyte is unknown. Here, we show that the microtubule (MT) minus end-stabilizing protein Patronin/CAMSAP marks the futureDrosophilaoocyte and is required for oocyte specification. The spectraplakin Shot recruits Patronin to the fusome, a branched structure extending into all cyst cells. Patronin stabilizes more MTs in the cell with the most fusome material. Our data suggest that this weak asymmetry is amplified by Dynein-dependent transport of Patronin-stabilized MTs. This forms a polarized MT network, along which Dynein transports oocyte determinants into the presumptive oocyte. Thus, Patronin amplifies a weak fusome anisotropy to break symmetry and select one cell to become the oocyte.
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影响因子:
10.7
作者:
Baines, Anthony J.;Bignone, Paola A.;Phillips, Gareth W.
通讯作者:
Phillips, Gareth W.
影响因子:
10.5
作者:
LANTZ, V;CHANG, JS;SCHEDL, P
通讯作者:
SCHEDL, P
影响因子:
3.3
作者:
Schüpbach,T;Wieschaus,E
通讯作者:
Wieschaus,E
DOI:
10.1242/dev.124.12.2409
发表时间:
1997
期刊:
Development (Cambridge, England)
影响因子:
--
作者:
McGrail,M;Hays,TS
通讯作者:
Hays,TS
影响因子:
9.2
作者:
Röper, K;Brown, NH
通讯作者:
Brown, NH