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. 2021 May 14;10:e55665. doi: 10.7554/eLife.55665

Key resources table.

Reagent type (species) or resource Designation Source or reference Identifiers Additional information
Strain, strain background (Ambystoma mexicanum, d/d strain) Axolotl, d/d strain Tanaka lab axolotl colony - Axolotl stock maintained in Tanaka lab, Vienna, Austria.
Genetic reagent (Ambystoma mexicanum, AxFUCCI transgenic) Transgenic AxFUCCI axolotl This paper - Transgenic stock generated in d/d genetic background in Tanaka lab, Vienna, Austria.
Gene (Ambystoma mexicanum) Cdt1 Axolotl genome release v6.0-DD Schloissnig, 2021 CDT1|AMEX60DD201052583.1 Axolotl genome release v6.0-DD available at: https://www.axolotl-omics.org/assemblies.
Gene (Ambystoma mexicanum) Gmnn Axolotl genome release v6.0-DD Schloissnig, 2021 GMNN|AMEX60DD301038574.1 Axolotl genome release v6.0-DD available at: https://www.axolotl-omics.org/assemblies.
Cell line (AL1, Ambystoma mexicanum) AL1 cells Roy et al., 2000 - AL1 cells were kindly provided by Dr David Gardiner (UC Irvine). AL1 cells are an immortalized mesenchymal axolotl line originally derived from a limb blastema.
Recombinant DNA reagent Addgene plasmid mVenus N1 Addgene RRID:Addgene_27793 To amplify coding sequence for mVenus fluorescent protein by PCR.
Recombinant DNA reagent pAxFUCCI This paper pAxFUCCI Plasmid encoding AxFUCCI. Used to generate AxFUCCI transgenic axolotls by I-SceI-mediated transgenesis.
Sequence-based reagent axCdt1-fwd This paper PCR primer TCATGCGGCCGCATGGCCCAGCTCCGGATGA.Forward primer to amplify axCdt1[aa1-128] from axolotl embryonic cDNA. Bold indicates a NotI restriction site.
Sequence-based reagent axCdt1-rev This paper PCR primer TCATGCTAGCGAATTCTCCGCTTCCTGCTGCGCTTCCTGCGCTTCCCAGGGATGATGGG GTTAATGGCTReverse primer to amplify axCdt1[aa1-128] from axolotl embryonic cDNA. Bold indicates a NheI restriction site. Underlined sequence encodes GS-rich linker.
Sequence-based reagent Venus-fwd This paper PCR primer TCATGCTAGCATGGTGAGCAAGGGCGAGGForward primer to amplify mVenus sequence from addgene plasmid #27793. Bold indicates a NheI restriction site.
Sequence-based reagent Venus-rev This paper PCR primer TCATACCGGTCTTGTACAGCTCGTCCATGCCReverse primer to amplify mVenus sequence from addgene plasmid #27793. Bold indicates a AgeI restriction site.
Sequence-based reagent axGmnn-fwd This paper PCR primer TCATTCCGGAGGAGGAGGAGGAAGCGGAGGAGGAGGAAGCATGAATGCTAAGAAAG CAGCGACAATForward primer to amplify axGmnn[aa1-93] from axolotl embryonic cDNA. Bold indicates a BspEI restriction site. Underlined sequence encodes GS-rich linker.
Sequence-based reagent axGmnn-rev This paper PCR primer TCATATCGATGCTGTAAGCTTCTTGGGACA CCCReverse primer to amplify axGmnn[aa1-93] from axolotl embryonic cDNA. Bold indicates a ClaI restriction site.
Antibody Mouse monoclonal antibody to NeuN Millipore MAB377RRID:AB_2298772 1:500
Antibody Rabbit polyclonal antibody to Sox2 Fei et al., 2016 - 1:1000
Commercial assay or kit Click-iT 647 EdU detection kit for Imaging Thermo Fisher Scientific C10340 To label cells that have transited through S-phase.
Chemical compound, drug Easyindex LifeCanvas Technologies - Refractive index matching solution for light sheet imaging (RI 1.46).
Software, algorithm Trackmate plugin for Fiji Tinevez et al., 2017 - To track AL1 cells for the purposes of quantifying AxFUCCI fluorescence.