Generation and characterization of Lhx9-GFPCreER(T2) knock-in mouse line.
Generation and characterization of Lhx9-GFPCreER(T2) knock-in mouse line.
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作者:
Balasubramanian, Revathi;Bui, Andrew;Xie, Xiaoling;Deng, Min;Gan, Lin
LHX9 is a LIM-homeodomain transcription factor essential for the development of gonads, spinal cord interneurons, and thalamic neurons to name a few. We recently reported the expression of LHX9 in retinal amacrine cells during development. In this study, we generated an Lhx9 - GFPCreERT2 (GCE) knock-in mouse line by knocking-in a GCE cassette at the Lhx9 locus, thus inactivating endogenous Lhx9. Lhx9GCE/+ mice were viable, fertile, and displayed no overt phenotypical characteristics. Lhx9GCE/GCE mice were all phenotypically female, smaller in size, viable, but infertile. The specificity and efficacy of the Lhx9-GCE mouse line was verified by crossing it to a Rosa26 - tdTomato reporter mouse line, which reveals the Cre recombinase activities in retinal amacrine cells, developing limbs, testis, hippocampal neurons, thalamic neurons, and cerebellar neurons. Taken together, the Lhx9-GCE mouse line could serve as a beneficial tool for lineage tracing and gene manipulation experiments.
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