Abstract：
:Mutants of Paramecium caudatum with abnormal swimming behavior or responses to cations were obtained by mutagenesis with N-methyl-N'-nitro-N-nitrosoguanidine. Some of the mutants, like pawn in P. tetraurelia, cannot swim backward and are called CNR. Seven independently obtained CNR mutants belonged to three complementation groups, designated as cnrA, cnrB and cnrC. Some characteristics of double homo- and heterozygotes were compared with single homo- and heterozygotes. Other behavioral mutants shown to have a genic basis included K(+)-sensitive, temperature-shock behavioral and slow swimmer. All those mutants except for slow swimmer had lesions in the membrane because Triton-extracted models of them show almost the same swimming behavior as wild type.
journal_name
Geneticsjournal_title
Geneticsauthors
Takahashi Msubject
Has Abstractpub_date
1979-03-01 00:00:00pages
393-408issue
3eissn
0016-6731issn
1943-2631journal_volume
91pub_type
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