homosexuality and promoting female fecundity Evidence for maternally inherited factors favouring male
نویسندگان
چکیده
, doi: 10.1098/rspb.2004.2872 271 2004 Proc. R. Soc. Lond. B A. Camperio-Ciani, F. Corna and C. Capiluppi homosexuality and promoting female fecundity Evidence for maternally inherited factors favouring male References http://rspb.royalsocietypublishing.org/content/271/1554/2217#related-urls Article cited in: Email alerting service here right-hand corner of the article or click Receive free email alerts when new articles cite this article sign up in the box at the top
منابع مشابه
Evidence for maternally inherited factors favouring male homosexuality and promoting female fecundity.
The Darwinian paradox of male homosexuality in humans is examined, i.e. if male homosexuality has a genetic component and homosexuals reproduce less than heterosexuals, then why is this trait maintained in the population? In a sample of 98 homosexual and 100 heterosexual men and their relatives (a total of over 4600 individuals), we found that female maternal relatives of homosexuals have highe...
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Several lines of evidence indicate the existence of genetic factors influencing male homosexuality and bisexuality. In spite of its relatively low frequency, the stable permanence in all human populations of this apparently detrimental trait constitutes a puzzling 'Darwinian paradox'. Furthermore, several studies have pointed out relevant asymmetries in the distribution of both male homosexuali...
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A variety of social, developmental, biological and genetic factors influence sexual orientation in males. Thus, several hypotheses have attempted to explain the sustenance of genetic factors that influence male homosexuality, despite decreased fecundity within the homosexuals. Kin selection, the existence of maternal effects and two forms of balancing selection, sexually antagonistic selection ...
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Mathematicians have always been attracted to the field of genetics. I am especially interested in the mathematical aspects of research on homosexuality. Certain studies show that male homosexuality may have a genetic component that is correlated with female fertility. Other studies show the existence of the fraternal birth order effect, that is the correlation of homosexuality with the number o...
متن کاملFactors associated with higher fecundity in female maternal relatives of homosexual men.
INTRODUCTION Recent evidence suggests that sexually antagonistic genetic factors in the maternal line promote homosexuality in men and fecundity in female relatives. However, it is not clear if and how these genetic factors are phenotypically expressed to simultaneously induce homosexuality in men and increased fecundity in their mothers and maternal aunts. AIMS The aim of the present study w...
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