Transmission of a genetic trait through total conjugation in a hypotrich ciliate Paraurostyla weissei. Genetic basis of the multi-left-marginal mutant

The genetic basis of slow growth rate and aberrations in the ciliary pattern was studied in the multi-left-marginal variant of Paraurostyla weissei. The 3:1 segregation in F2 sibling crosses and 1:1 segregation in test crosses indicate that the aberrant phenotype is controlled by a recessive allele...

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Bibliographic Details
Published inGenetical Research Vol. 46; no. 3; pp. 263 - 271
Main Authors Jerka-Dziadosz, Maria, Dubielecka, Bozena
Format Journal Article
LanguageEnglish
Published Cambridge, UK Cambridge University Press 01.12.1985
Subjects
Animals
Biological and medical sciences
Ciliata
Classical genetics, quantitative genetics, hybrids
Fundamental and applied biological sciences. Psychology
Genetics of eukaryotes. Biological and molecular evolution
Paraurostyla weissei
Protozoa
Protozoa
Ciliata
Conjugation
Mutation
Ciliature
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Summary:The genetic basis of slow growth rate and aberrations in the ciliary pattern was studied in the multi-left-marginal variant of Paraurostyla weissei. The 3:1 segregation in F2 sibling crosses and 1:1 segregation in test crosses indicate that the aberrant phenotype is controlled by a recessive allele at a single gene locus termed mlm. The phenotypic change from wild type to mlm takes place about 5–8 cell cycles after conjugation. The study established that total conjugation in P. weissei is a true sexual process in which meiosis, fertilization and Mendelian segregation occur.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:0016-6723
1469-5073
DOI:10.1017/S001667230002276X