PUBLICATION

Reverse Genetic Screening Reveals Poor Correlation between Morpholino-Induced and Mutant Phenotypes in Zebrafish

Authors
Kok, F.O., Shin, M., Ni, C., Gupta, A., Grosse, A.S., van Impel, A., Kirchmaier, B.C., Peterson-Maduro, J., Kourkoulis, G., Male, I., DeSantis, D.F., Sheppard-Tindell, S., Ebarasi, L., Betsholtz, C., Schulte-Merker, S., Wolfe, S.A., Lawson, N.D.
ID
ZDB-PUB-141224-21
Date
2015
Source
Developmental Cell   32(1): 97-108 (Journal)
Registered Authors
Betsholtz, Christer, Ebarasi, Lwaki, Gupta, Ankit, Kourkoulis, George D., Lawson, Nathan, Peterson-Maduroe, Josi, Schulte-Merker, Stefan, Shin, Masahiro, van Impel, Andreas, Wolfe, Scot A.
Keywords
none
MeSH Terms
  • Animals
  • Blotting, Western
  • Deoxyribonucleases/genetics*
  • Deoxyribonucleases/metabolism
  • Gene Expression Regulation/drug effects*
  • Gene Expression Regulation, Developmental
  • Gene Knockdown Techniques/methods*
  • Morpholinos/pharmacology*
  • Mutation/genetics*
  • Oligonucleotides, Antisense/pharmacology*
  • Phenotype
  • RNA, Messenger/genetics
  • Real-Time Polymerase Chain Reaction
  • Reverse Transcriptase Polymerase Chain Reaction
  • Zebrafish/genetics*
  • Zebrafish/growth & development
  • Zebrafish Proteins/antagonists & inhibitors
  • Zebrafish Proteins/genetics*
PubMed
25533206 Full text @ Dev. Cell
Abstract
The widespread availability of programmable site-specific nucleases now enables targeted gene disruption in the zebrafish. In this study, we applied site-specific nucleases to generate zebrafish lines bearing individual mutations in more than 20 genes. We found that mutations in only a small proportion of genes caused defects in embryogenesis. Moreover, mutants for ten different genes failed to recapitulate published Morpholino-induced phenotypes (morphants). The absence of phenotypes in mutant embryos was not likely due to maternal effects or failure to eliminate gene function. Consistently, a comparison of published morphant defects with the Sanger Zebrafish Mutation Project revealed that approximately 80% of morphant phenotypes were not observed in mutant embryos, similar to our mutant collection. Based on these results, we suggest that mutant phenotypes become the standard metric to define gene function in zebrafish, after which Morpholinos that recapitulate respective phenotypes could be reliably applied for ancillary analyses.
Genes / Markers
Figures
Show all Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping