Fundamental origins and limits for scaling a maternal morphogen gradient.
Fundamental origins and limits for scaling a maternal morphogen gradient.
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母体形态发生素梯度缩放的基本起源和限制
DOI:
10.1038/ncomms7679
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发表时间:
2015-03-26
影响因子:
16.6
通讯作者:
Ma, Jun
中科院分区:
文献类型:
--
作者:
He, Feng;Wei, Chuanxian;Wu, Honggang;Cheung, David;Jiao, Renjie;Ma, Jun
Tissue expansion and patterning are integral to development; however, it is unknown quantitatively how a mother accumulates molecular resources to invest in the future of instructing robust embryonic patterning. Here we develop a model, Tissue Expansion-Modulated Maternal Morphogen Scaling (TEM3S), to study scaled anterior–posterior patterning inDrosophilaembryos. Using both ovaries and embryos, we measure a core quantity of the model, the scaling power of the Bicoid (Bcd) morphogen gradient’s amplitudenA. We also evaluate directly model-derived predictions about Bcd gradient and patterning properties. Our results show that scaling of the Bcd gradient in the embryo originates from, and is constrained fundamentally by, a dynamic relationship between maternal tissue expansion andbcdgene copy number expansion in the ovary. This delicate connection between the two transitioning stages of a life cycle, stemming from a finite value ofnA~3, underscores a key feature of developmental systems depicted by TEM3S.
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影响因子:
2.6
作者:
de Nooij, JC;Graber, KH;Hariharan, IK
通讯作者:
Hariharan, IK
DOI:
10.1073/pnas.0509483102
发表时间:
2005-12-20
影响因子:
11.1
作者:
Gregor, T;Bialek, W;Wieschaus, EF
通讯作者:
Wieschaus, EF
影响因子:
3.4
作者:
He, Feng;Saunders, Timothy E.;Ma, Jun
通讯作者:
Ma, Jun
影响因子:
--
作者:
He F;Wen Y;Cheung D;Deng J;Lu LJ;Jiao R;Ma J
通讯作者:
Ma J
影响因子:
3.7
作者:
He F;Ma J
通讯作者:
Ma J