TEMPERATURE EFFECTS ON LETHAL MUTATION RATES OF HABROBRACON OöCYTES X-IRRADIATED IN FIRST MEIOTIC METAPHASE
نویسندگان
چکیده
منابع مشابه
Temperature effects on lethal mutation rates of Habrobracon oocytes x-irradiated in first meiotic metaphase.
BRIEF note was published in 1940 (WHITING) concerning the influence of A temperature on X-ray sensitivity of different meiotic stages in the Habrobracon oocyte. Unmated females were kept at O"C, 13"C, 25"C, and 35OC for one hour before and one hour after irradiation. During a one half minute of exposure to 212r, they were at room temperature. For oocytes in first meiotic metaphase (metaphase I)...
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...
متن کاملInduction of Dominant Lethal Effects by X-Radiation in Habrobracon.
ULLER in 1927 stated that the “partial sterility” of X-rayed males M of Drosophila wasdue,at least to an appreciable extent, to dominant lethal changes induced in the sperm. It was impossible, however, to determine whether the eggs were actually “fertilized.” In Drosophila the result would be the same; the eggs would fail to develop, whether dominant lethals were induced or the sperm were inact...
متن کاملEffects of Temperature on Fertilization in Habrobracon.
N THE parasitic wasp Habrobracon juglandis (Ashm.), when a cross of I unrelated stocks is made, males (haploid) come from unfertilized eggs and females (diploid) from fertilized eggs. When the parental stocks are closely related, not only males from unfertilized eggs but also males (diploid) from fertilized eggs appear. That such biparental males should be produced was puzzling until WHITING br...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Genetics
سال: 1961
ISSN: 1943-2631
DOI: 10.1093/genetics/46.7.811