Indian Journal of Human Genetics
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ORIGINAL ARTICLE
Year : 2013  |  Volume : 19  |  Issue : 3  |  Page : 315-319

Index of opportunity for natural selection among the Gowdas of Kodagahalli village, Karnataka, India


Department of Anthropology, Saint Claret College, Ziro, Lower Subansiri District, Arunachal Pradesh, India

Correspondence Address:
Bhaboklang Sohkhlet
Department of Anthropology, Saint Claret College, Ziro - 791 120, Lower Subansiri District, Arunachal Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-6866.120821

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Background: In order to understand how selection is operating in the Gowda population, the index of opportunity for selection was calculated and the present findings were compared with some related findings from other South Indian (SI) populations. Materials and Methods: Crow (1958) and the modified method by Johnston and Kensinger (1971) were used for the present purpose. Results and Discussion: The index of total selection intensity (I) was found to be moderate taking into consideration the range for many Indian populations. Considering certain differences in fertility and mortality heritable, it appears that natural selection play an important role in shaping the genetic constitution of the Gowda population. Analysis of data indicates that the index due to fertility seems to contribute more towards selection than mortality. This trend might be because of better living condition and health-care system among the Gowdas which have a positive impact on the lower contribution of mortality for the evolution mechanism of the Gowda population through natural selection.


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