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NEGATIVE EPISTASIS BETWEEN α(+) THALASSAEMIA AND SICKLE CELL TRAIT CAN EXPLAIN INTERPOPULATION VARIATION IN SOUTH ASIA

Recent studies in Kenya and Ghana have shown that individuals who inherit two malaria-protective genetic disorders of haemoglobin—α(+) thalassaemia and sickle cell trait—experience a much lower level of malaria protection than those who inherit sickle cell trait alone. We have previously demonstrate...

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Detalles Bibliográficos
Autores principales: Penman, Bridget S, Habib, Saman, Kanchan, Kanika, Gupta, Sunetra, Read, A
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Blackwell Publishing Inc 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3263337/
https://www.ncbi.nlm.nih.gov/pubmed/22133230
http://dx.doi.org/10.1111/j.1558-5646.2011.01408.x
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author Penman, Bridget S
Habib, Saman
Kanchan, Kanika
Gupta, Sunetra
Read, A
author_facet Penman, Bridget S
Habib, Saman
Kanchan, Kanika
Gupta, Sunetra
Read, A
author_sort Penman, Bridget S
collection PubMed
description Recent studies in Kenya and Ghana have shown that individuals who inherit two malaria-protective genetic disorders of haemoglobin—α(+) thalassaemia and sickle cell trait—experience a much lower level of malaria protection than those who inherit sickle cell trait alone. We have previously demonstrated that this can limit the frequency of α(+) thalassaemia in a population in which sickle cell is present, which may account for the frequency of α(+) thalassaemia in sub-Saharan Africa not exceeding 50%. Here we consider the relationship between α(+) thalassaemia and sickle cell in South Asian populations, and show that very high levels of α(+) thalassaemia combined with varying levels of malaria selection can explain why sickle cell has penetrated certain South Asian populations but not others.
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spelling pubmed-32633372012-01-22 NEGATIVE EPISTASIS BETWEEN α(+) THALASSAEMIA AND SICKLE CELL TRAIT CAN EXPLAIN INTERPOPULATION VARIATION IN SOUTH ASIA Penman, Bridget S Habib, Saman Kanchan, Kanika Gupta, Sunetra Read, A Evolution Brief Communication Recent studies in Kenya and Ghana have shown that individuals who inherit two malaria-protective genetic disorders of haemoglobin—α(+) thalassaemia and sickle cell trait—experience a much lower level of malaria protection than those who inherit sickle cell trait alone. We have previously demonstrated that this can limit the frequency of α(+) thalassaemia in a population in which sickle cell is present, which may account for the frequency of α(+) thalassaemia in sub-Saharan Africa not exceeding 50%. Here we consider the relationship between α(+) thalassaemia and sickle cell in South Asian populations, and show that very high levels of α(+) thalassaemia combined with varying levels of malaria selection can explain why sickle cell has penetrated certain South Asian populations but not others. Blackwell Publishing Inc 2011-12 /pmc/articles/PMC3263337/ /pubmed/22133230 http://dx.doi.org/10.1111/j.1558-5646.2011.01408.x Text en © 2011 The Author(s). Evolution© 2011 The Society for the Study of Evolution. http://creativecommons.org/licenses/by/2.5/ Re-use of this article is permitted in accordance with the Creative Commons Deed, Attribution 2.5, which does not permit commercial exploitation.
spellingShingle Brief Communication
Penman, Bridget S
Habib, Saman
Kanchan, Kanika
Gupta, Sunetra
Read, A
NEGATIVE EPISTASIS BETWEEN α(+) THALASSAEMIA AND SICKLE CELL TRAIT CAN EXPLAIN INTERPOPULATION VARIATION IN SOUTH ASIA
title NEGATIVE EPISTASIS BETWEEN α(+) THALASSAEMIA AND SICKLE CELL TRAIT CAN EXPLAIN INTERPOPULATION VARIATION IN SOUTH ASIA
title_full NEGATIVE EPISTASIS BETWEEN α(+) THALASSAEMIA AND SICKLE CELL TRAIT CAN EXPLAIN INTERPOPULATION VARIATION IN SOUTH ASIA
title_fullStr NEGATIVE EPISTASIS BETWEEN α(+) THALASSAEMIA AND SICKLE CELL TRAIT CAN EXPLAIN INTERPOPULATION VARIATION IN SOUTH ASIA
title_full_unstemmed NEGATIVE EPISTASIS BETWEEN α(+) THALASSAEMIA AND SICKLE CELL TRAIT CAN EXPLAIN INTERPOPULATION VARIATION IN SOUTH ASIA
title_short NEGATIVE EPISTASIS BETWEEN α(+) THALASSAEMIA AND SICKLE CELL TRAIT CAN EXPLAIN INTERPOPULATION VARIATION IN SOUTH ASIA
title_sort negative epistasis between α(+) thalassaemia and sickle cell trait can explain interpopulation variation in south asia
topic Brief Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3263337/
https://www.ncbi.nlm.nih.gov/pubmed/22133230
http://dx.doi.org/10.1111/j.1558-5646.2011.01408.x
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