Location of fourth chromosomal male-determining factors of the housefly, Musca domestica.
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چکیده
منابع مشابه
The Y-chromosomal and autosomal male-determining M factors of Musca domestica are equivalent.
In Musca domestica, male sex is determined by a dominant factor, M, located either on the Y, the X or on an autosome. M prevents the activity of the female-determining gene F. In the absence of M, F becomes active and dictates female development. The various M factors may represent translocated copies of an ancestral Y-chromosomal M. Double mutants and germ line chimeras show that MY, MI, MII, ...
متن کاملThe male-determining activity on the Y chromosome of the housefly (Musca domestica L.) consists of separable elements.
In the common housefly, the presence or absence of a male-determining factor, M, is responsible for sex determination. In different strains, M has been found on the Y, on the X, or on any of the five autosomes. By analyzing a Y-autosomal translocation and a ring-shaped, truncated Y chromosome, we could show that M on the Y consists of at least two regions with M activity: One of them can be ass...
متن کاملDevelopmental analysis of two sex-determining genes, M and F, in the housefly, Musca domestica.
In the housefly, Musca domestica, a single dominant factor, M, determines maleness. Animals hemi-or heterozygous for M are males, whereas those without M develop as females. In certain strains, however, both sexes are homozygous for M, and an epistatic dominant factor, FD, dictates female development. The requirement for these factors was analyzed by producing, with mitotic recombination, mosai...
متن کاملA high frequency of male determining factors in male Musca domestica (Diptera: Muscidae) from Ipswich, Australia.
The male sex determining factor (M) in the house fly is linked to the Y chromosome in the ancestral condition, but can also be linked to another chromosome (I-V or X). However, descriptions of the linkage and frequency of M factors in different populations throughout the world are vastly incomplete. We collected house flies from a dairy in Ipswich, Australia, and determined that M was linked to...
متن کاملInvestigations on the Mitochondria of the Housefly, Musca Domestica L
1. The ATPase activity of insect mitochondria has been investigated. A comparison was made to determine the distribution and nature of such activity in other isolated fractions of the house fly, Musca domestica L. 2. The ATPase in insect mitochondria is specific in that orthophosphate can be cleaved only from ATP. The Michaelis-Menten constant K(8) = 2.78 x 10(-3)M and V(max.) = 76 micrograms P...
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ژورنال
عنوان ژورنال: The Japanese Journal of Genetics
سال: 1986
ISSN: 0021-504X,1880-5787
DOI: 10.1266/jjg.61.119