Initial deployment of the cardiogenic gene regulatory network in the basal chordate, Ciona intestinalis.
Initial deployment of the cardiogenic gene regulatory network in the basal chordate, Ciona intestinalis.
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心原性基因调控网络在基底脊索动物海鞘中的初步部署。
DOI:
10.1016/j.ydbio.2012.05.002
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发表时间:
2012
影响因子:
2.7
通讯作者:
Davidson,Brad
中科院分区:
文献类型:
--
作者:
Woznica,Arielle;Haeussler,Maximilian;Starobinska,Ella;Jemmett,Jessica;Li,Younan;Mount,David;Davidson,Brad
The complex, partially redundant gene regulatory architecture underlying vertebrate heart formation has been difficult to characterize. Here, we dissect the primary cardiac gene regulatory network in the invertebrate chordate, Ciona intestinalis. The Ciona heart progenitor lineage is first specified by Fibroblast Growth Factor/Map Kinase (FGF/MapK) activation of the transcription factor Ets1/2 (Ets). Through microarray analysis of sorted heart progenitor cells, we identified the complete set of primary genes upregulated by FGF/Ets shortly after heart progenitor emergence. Combinatorial sequence analysis of these co-regulated genes generated a hypothetical regulatory code consisting of Ets binding sites associated with a specific co-motif, ATTA. Through extensive reporter analysis, we confirmed the functional importance of the ATTA co-motif in primary heart progenitor gene regulation. We then used the Ets/ATTA combination motif to successfully predict a number of additional heart progenitor gene regulatory elements, including an intronic element driving expression of the core conserved cardiac transcription factor, GATAa. This work significantly advances our understanding of the Ciona heart gene network. Furthermore, this work has begun to elucidate the precise regulatory architecture underlying the conserved, primary role of FGF/Ets in chordate heart lineage specification.
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影响因子:
3.7
作者:
Krauss RS
通讯作者:
Krauss RS
影响因子:
2.7
作者:
Auger, Helene;Lamy, Clement;Joly, Jean-Stephane
通讯作者:
Joly, Jean-Stephane
影响因子:
56.9
作者:
Christiaen, Lionel;Davidson, Brad;Levine, Michael
通讯作者:
Levine, Michael
影响因子:
7
作者:
W. Shi;M. Levine;B. Davidson
通讯作者:
B. Davidson
影响因子:
20.1
作者:
Evans SM;Yelon D;Conlon FL;Kirby ML
通讯作者:
Kirby ML