INDUCTION OF PATERNAL SEX CHROMOSOME LOSSES BY IRRADIATION OF MOUSE SPERMATOZOA | Zendy

Liane B. Russell | Zendy; Clyde Lee Saylors | Zendy

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INDUCTION OF PATERNAL SEX CHROMOSOME LOSSES BY IRRADIATION OF MOUSE SPERMATOZOA

Author(s) -

Liane B. Russell,

Clyde Lee Saylors

Publication year - 1962

Publication title -

genetics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.792

H-Index - 246

eISSN - 1943-2631

pISSN - 0016-6731

DOI - 10.1093/genetics/47.1.7

Subject(s) - biology , autosome , genetics , sperm , pronucleus , andrology , chromosome , x chromosome , zygote , embryo , gene , embryogenesis , medicine

Paternal sex-chromosome loss, both partial and complete, was induced by irradiation of mouse spermatozoa, 600 r giving an induced frequency of at least 1.2% of daughters hemizygous for a marker on the maternal X. Comparison with dominant lethal frequency indicated that sensitivity of the sex chromosomes is probably not too unlike that of autosomes. Comparison between the induction of paternal sex-chroraosome loss in spermatozoa, on the one hand, and in the male pronucleus shortly after sperm entry into the oocyte, on the other, indicated the latter stage to be more sensitive by approximately one order of magnitude. (auth)

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