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| http://dx.doi.org/10.1093/genetics/65.4.619 | DOI Listing |
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Is sex ratio at birth an appropriate measure of prenatal sex selection? Findings of a theoretical model and its application to India.
BMJ Glob Health
July 2018
Saint John's College, University of Oxford, Oxford, UK.
Son preference and prenatal sex selection against females have resulted in significant sex ratio at birth (SRB) imbalances well documented in several Asian countries, including India and China. The SRB bias is generally used as indicator for the extent and trends of prenatal sex selection against females. Decreasing fertility levels are expected to increase sex selection and thus SRB bias, since desiring fewer children increases the risk for families to remain sonless (fertility squeeze effect).
View Article and Find Full Text PDFThe sex-linked maternally influenced lethal gene, sonless (snl), in D. melanogaster was shown to affect the survival of daughters as well as sons of snl/snl mothers but to a lesser degree. Interaction studies of sonless with the sex altering mutants transformer (tra) and doublesex (dsx) revealed that any alteration toward increased masculinity of progeny from snl/snl females reduced their zygotic viability, independent of snl dosage or Y chromosome presence or absence.
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