Skip to main content


Follow @TetrahymenaSC

Stock IDSD01464
Strain NameIA403
AKAdbl1-1 IIb
SpeciesT. thermophila
Genetic Descriptiondbl1-1/dbl1-1 (dbl1-1; II)
MAC Knockins/outs
MIC Knockins/outs
Gene of InterestDBL1 (doublet-former 1)
OriginA genomic exclusion progeny following four successive outcrosses to IA264 (a 2d-gal heterokaryon) of a mutant clone resulting from nitrosoguanidine mutagenesis, of IA264, in 1988 followed by cytogamy.
PublicationsBriefly described in Frankel J. 2008. What do genic mutations tell us about the structural patterning of a complex single-celled organism? Eukaryot Cell 7(10):1617-39, p. 1633 and Fig.19.
CommentsA variable proclivity to form regular homopolar doublets. Enigmatic. Derivation highly complex, crosses of presumed homozygotes are inviable. Highly variable penetrance of doublets. It is not known how the doublets are actually formed.

Submitted by Joseph Frankel, University of Iowa
Research Resource IdentifierTSC_SD01464
Requires MTA?No
Academic cost $35