RT Journal Article SR Electronic T1 Autonomous combinatorial color barcoding for multiplexing single molecule RNA visualization JF bioRxiv FD Cold Spring Harbor Laboratory SP 127373 DO 10.1101/127373 A1 Yong-Sheng Cheng A1 Yue Zhuo A1 Katharina Hartmann A1 Peng Zou A1 Gözde Bekki A1 Heike Alter A1 Hai-Kun Liu YR 2017 UL http://biorxiv.org/content/early/2017/04/18/127373.abstract AB Single molecular fluorescence in situ hybridization (smFISH) detects RNA transcripts with spatial information and digital molecular counting. However, the broad usage of smFISH is still hindered by the complex chemical probe conjugation or microscopy set-up, especially for investigating multiple gene expression. Here we present a multiple fluorophore enzymatic labeling method (termed HuluFISH) for smFISH probes to achieve flexible combinatorial color barcoding in single hybridization step. The multiplex capacity of HuluFISH follows an exponential growth with the increase of the number of fluorophore types. We demonstrate that this method can be used to detect cellular heterogeneity in embryonic mouse brain on single cell level.