X-RAY INDUCED VISIBLE MUTATIONS IN HABROBRACON OOCYTES
نویسندگان
چکیده
منابع مشابه
X-ray induced visible mutations in Habrobracon oocytes.
HE technique for classifying oocytes of irradiated females of the parasitic Twasp, Habrobracon, into those exposed in first meiotic prophase (prophase I ) and those exposed in first meiotic metaphase (metaphase I) was described by the author in 1945 (1945a). Methods for greater accuracy in estimating lethal rates were described by ATWOOD, VON BORSTEL and WHITING 1956. The striking difference in...
متن کاملInduced Mutations in Habrobracon Eggs
S long ago as 1921 HOLTHUSEN observed an effect of anoxia on X-rayed A cells. Interest in this factor and its relation to radiation damage has recently been revived. BACQ (1951) has reviewed the earlier work and latest developments have been described by HOLLAENDER, BAKER and ANDERSON (1951), HOLLAENDER (1952) and GILES (1952). One group of investigators has been concerned with the question as ...
متن کاملThe Occurrence of X-Ray Induced Dominant Lethal Mutations in Habrobracon.
H E PARASITIC wasp, Habrobracon, has been considered of special T value in connection with studies of dominant lethals because of its somewhat exceptional method of breeding. In “out-crosses,” now called three-allele crosses because they involve triple alleles a t the sex locus, all fertilized eggs develop into females, unfertilized ones into males (WHITING 1937a, 1940, 1943). It follows, then,...
متن کاملThe frequency of x-ray induced recessive visible mutations in the rat.
DELETERIOUS mutations which act postnatally are considered to be more serious in man than (are prenatal lethals. The former class frequently represents a human tragedy, while lethals which act in the early embryonic stages may pass completely unnoticed. Recessive visible mutations in experimental mammals are roughly equivalent to recessive genetic diseases in man, and in some cases probably rep...
متن کاملEmbryonic lethals induced by x-iradiation of first meiotic metaphase oocytes of Habrobracon.
INVESTIGATIONS to be reported in this paper have been concerned chiefly whh X-ray-induced embryonic lethal mutations in Habrobracon. Some of the data and one of the methods have already been given (HEIDENTHAL 1952, 1953; HEIDENTHAL, C ARK and GOWEN 1955). The purpose of the author's work, as well as that of others, has been in part to study the frequency of different kinds of lethal-bearing gen...
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ژورنال
عنوان ژورنال: Genetics
سال: 1963
ISSN: 1943-2631
DOI: 10.1093/genetics/48.4.491