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TEMPERATURE‐SENSITIVE MUTANTS OF ASCOBOLUS IMMERSUS
Author(s) -
YuSun Clare C. C.
Publication year - 1969
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1969.tb07541.x
Subject(s) - mutant , biology , genetics , phenotype , wild type , recombination , gene , mutation
As a result of a search for genetic markers to be used in interallelic recombination studies, 23 temperature‐sensitive mutants of Ascobolus immersus were isolated following UV‐irradiation. Three of these failed to grow at 37 C but grew normally or, in one case with a colonial phenotype, at 25 C. Twenty mutants are like the wild type at 25 C but express a colonial phenotype at 37 C. Crosses of the mutants to wild type indicate that all are due to single‐gene mutations. Crosses among certain of the mutants indicate that several different loci are affected.