Summary
Electrophoretic analysis of G-6-PD from single individuals of Gryllotalpa fossor from a wild population indicated that this locus is X-linked and the polymorphic forms could be identified by the variations in their mobility (fast and slow). The presence of both the bands in single female individuals supports our views (Rao and Arora 1979; Arora and Rao 1980) that there is random inactivation of one of the two Xs in the somatic cells. Further, it is postulated that the linkage of G-6-PD with the X chromosome in the male heterogametic organisms is due to selection pressure.
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Arora, P, and Rao, S R V. 1980. Insect sex chromosomes. V. 3H-uridine induced aberrations in the X chromosomes of tetraploid spermatogonia from Gryllotalpa fossor. Chromosoma, (Berl), 77, 373–378.
Camenzind, R, and Nicklas, R B. 1968. The non-random chromosome segregation in spermatocytes of Gryllotalpa hexadactyla. A micromanipulation analysis. Chromosoma, (Berl.), 24, 324–335.
Davis, B J. 1964. Disc electrophoresis. II. Methods and application to human serum proteins. Ann NY Acad Sci, 121, 404–421.
Dawson, P S, and Hollingsworth, N N. 1982. Sex linkage of the glucose-6-phosphate dehydrogenase locus in the flour beetle Tribolium castaneum. Can J Genet Cytol, 24, 267–271.
Ohno, S. 1967. Sex Chromosomes and Sex-linked Genes. Springer-Verlag, Berlin-Heidelberg-New York.
Rao, S R V, and Arora, P. 1979. Insect sex chromosomes. III. Differential susceptibility of homologous X chromosomes of Gryllotalpa fossor to 3H-Urd-induced aberrations. Chromosoma, (Berl.), 74, 241–252.
Young, W J, Porter, J E, and Childs, B. 1964. Glucose-6-phosphate dehydrogenase in Drosophila: X-linked electrophoretic variants. Science, 143, 140–141.
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Rao, S., Bhattacharya, M. Insect sex chromosomes: IX. X chromosome linkage of glucose 6-phosphate dehydrogenase (G-6-PD) locus in Gryllotalpa fossor (orthoptera). Heredity 53, 235–238 (1984). https://doi.org/10.1038/hdy.1984.79
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DOI: https://doi.org/10.1038/hdy.1984.79
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