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Natural selection among Kinnaura of the Himalayan highland: A comparative analysis with other Indian and Himalayan populations

The present investigation on fertility and mortality differential among Kinnaura of the Himalayan highland is based on data collected from 160 post-menopausal women belonging to the middle and high altitude region of Kinnaur district of Himachal Pradesh (Indian Himalayas). Selection potential based...

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Autores principales: Gautam, Rajesh K., Kapoor, Anup K., Kshatriya, G. K.
Formato: Texto
Lenguaje:English
Publicado: Medknow Publications 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2922629/
https://www.ncbi.nlm.nih.gov/pubmed/21088718
http://dx.doi.org/10.4103/0971-6866.60189
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author Gautam, Rajesh K.
Kapoor, Anup K.
Kshatriya, G. K.
author_facet Gautam, Rajesh K.
Kapoor, Anup K.
Kshatriya, G. K.
author_sort Gautam, Rajesh K.
collection PubMed
description The present investigation on fertility and mortality differential among Kinnaura of the Himalayan highland is based on data collected from 160 post-menopausal women belonging to the middle and high altitude region of Kinnaur district of Himachal Pradesh (Indian Himalayas). Selection potential based on differential fertility and mortality was computed for middle-and high-altitude women. Irrespective of the methodology, the total index of selection was found to be highest among middle-altitude women (0.386) as compared with high-altitude (0.370) women, whereas for the total population it is estimated to be 0.384. It was found that the Kinnaura of the Himalayan highland showing moderate index of total selection and relative contribution of the mortality component (Im) to the index of total selection is higher than the corresponding fertility component (If). The analysis of embryonic and post-natal mortality components shows that the post-natal mortality components are higher in comparison with the embryonic mortality components among highlanders and needs special intervention and health care. The present findings are compared with other Indian tribes as well as non-tribes of the Himalayan region and other parts of the country. It reveals that this index among Kinnaura is moderate than the other population groups; among the Himalayan population, the highest was reported for Galong (It = 1.07) of Arunachal, whereas the lowest was reported from Ahom (It = 0.218) of Manipur. The correlation and regression analysis between total index of selection (It) and fertility (If) and mortality (Im) components for pooled data of populations of the Indian Himalayan states show that If and Im account for 21.6 and 29.1% variability, respectively. In Crow's total index of selection (It) along with strong association, which is significant at the 1% level, this indicates that mortality plays a greater role in natural selection in comparison with fertility among populations of the Indian Himalayas.
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spelling pubmed-29226292010-11-18 Natural selection among Kinnaura of the Himalayan highland: A comparative analysis with other Indian and Himalayan populations Gautam, Rajesh K. Kapoor, Anup K. Kshatriya, G. K. Indian J Hum Genet Original Article The present investigation on fertility and mortality differential among Kinnaura of the Himalayan highland is based on data collected from 160 post-menopausal women belonging to the middle and high altitude region of Kinnaur district of Himachal Pradesh (Indian Himalayas). Selection potential based on differential fertility and mortality was computed for middle-and high-altitude women. Irrespective of the methodology, the total index of selection was found to be highest among middle-altitude women (0.386) as compared with high-altitude (0.370) women, whereas for the total population it is estimated to be 0.384. It was found that the Kinnaura of the Himalayan highland showing moderate index of total selection and relative contribution of the mortality component (Im) to the index of total selection is higher than the corresponding fertility component (If). The analysis of embryonic and post-natal mortality components shows that the post-natal mortality components are higher in comparison with the embryonic mortality components among highlanders and needs special intervention and health care. The present findings are compared with other Indian tribes as well as non-tribes of the Himalayan region and other parts of the country. It reveals that this index among Kinnaura is moderate than the other population groups; among the Himalayan population, the highest was reported for Galong (It = 1.07) of Arunachal, whereas the lowest was reported from Ahom (It = 0.218) of Manipur. The correlation and regression analysis between total index of selection (It) and fertility (If) and mortality (Im) components for pooled data of populations of the Indian Himalayan states show that If and Im account for 21.6 and 29.1% variability, respectively. In Crow's total index of selection (It) along with strong association, which is significant at the 1% level, this indicates that mortality plays a greater role in natural selection in comparison with fertility among populations of the Indian Himalayas. Medknow Publications 2009 /pmc/articles/PMC2922629/ /pubmed/21088718 http://dx.doi.org/10.4103/0971-6866.60189 Text en © Indian Journal of Human Genetics http://creativecommons.org/licenses/by-nc-sa/2.0 This is an open-access article distributed under the terms of the Creative Commons Attribution license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Gautam, Rajesh K.
Kapoor, Anup K.
Kshatriya, G. K.
Natural selection among Kinnaura of the Himalayan highland: A comparative analysis with other Indian and Himalayan populations
title Natural selection among Kinnaura of the Himalayan highland: A comparative analysis with other Indian and Himalayan populations
title_full Natural selection among Kinnaura of the Himalayan highland: A comparative analysis with other Indian and Himalayan populations
title_fullStr Natural selection among Kinnaura of the Himalayan highland: A comparative analysis with other Indian and Himalayan populations
title_full_unstemmed Natural selection among Kinnaura of the Himalayan highland: A comparative analysis with other Indian and Himalayan populations
title_short Natural selection among Kinnaura of the Himalayan highland: A comparative analysis with other Indian and Himalayan populations
title_sort natural selection among kinnaura of the himalayan highland: a comparative analysis with other indian and himalayan populations
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2922629/
https://www.ncbi.nlm.nih.gov/pubmed/21088718
http://dx.doi.org/10.4103/0971-6866.60189
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