Comparative transcriptome analysis of Ethiopian indigenous chickens from low and high altitudes under heat stress condition reveals differential immune response

Ethiopia is an ecologically diverse country; the low altitude regions are hot and humid whereas the high altitude regions are cooler. In this study we analyzed the transcriptome response of high altitude (Addis Ababa) and low altitude (Awash) chickens to heat stress conditions that are prevalent in...

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Main Authors: Park, W., Srikanth, K., Lim, D., Park, M., Hur, T., Kemp, Stephen J., Dessie, Tadelle, Kim, M.S., Lee, S., Te Pas, M.F.W., Kim, J.M., Park, J.E.
Format: Journal Article
Language:Inglés
Published: Wiley 2019
Subjects:
Online Access:https://hdl.handle.net/10568/98918
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author Park, W.
Srikanth, K.
Lim, D.
Park, M.
Hur, T.
Kemp, Stephen J.
Dessie, Tadelle
Kim, M.S.
Lee, S.
Te Pas, M.F.W.
Kim, J.M.
Park, J.E.
author_browse Dessie, Tadelle
Hur, T.
Kemp, Stephen J.
Kim, J.M.
Kim, M.S.
Lee, S.
Lim, D.
Park, J.E.
Park, M.
Park, W.
Srikanth, K.
Te Pas, M.F.W.
author_facet Park, W.
Srikanth, K.
Lim, D.
Park, M.
Hur, T.
Kemp, Stephen J.
Dessie, Tadelle
Kim, M.S.
Lee, S.
Te Pas, M.F.W.
Kim, J.M.
Park, J.E.
author_sort Park, W.
collection Repository of Agricultural Research Outputs (CGSpace)
description Ethiopia is an ecologically diverse country; the low altitude regions are hot and humid whereas the high altitude regions are cooler. In this study we analyzed the transcriptome response of high altitude (Addis Ababa) and low altitude (Awash) chickens to heat stress conditions that are prevalent in the low altitude regions. The chickens were free ranged for 20 h in an enclosure in Awash, and then the heart, breast muscle and spleen tissues were collected at 6:00 am, 12:00 noon and 6:00 pm to follow a daily circadian cycle. Through RNA‐sequencing analysis, we identified differentially expressed genes (DEGs) that were significant (q < 0.05). These DEGs were subjected to protein–protein interaction (PPI) network and gene co‐expression network (GCN) analyses to understand their role. KEGG pathway analysis and Gene Ontology analysis of all the identified DEGs and the genes identified from the PPI network and GCN analyses revealed that several immune‐related pathways, such as proteasome, focal adhesion, influenza A, the ErbB signaling pathway and glycerophospholipid metabolism, were enriched in response to heat stress. These results suggest that the high altitude chickens were under heat stress and might be immunologically susceptible. Our findings will help in developing a genetic approach to mitigate production loss due to heat stress.
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spelling CGSpace989182024-08-27T10:35:00Z Comparative transcriptome analysis of Ethiopian indigenous chickens from low and high altitudes under heat stress condition reveals differential immune response Park, W. Srikanth, K. Lim, D. Park, M. Hur, T. Kemp, Stephen J. Dessie, Tadelle Kim, M.S. Lee, S. Te Pas, M.F.W. Kim, J.M. Park, J.E. animal breeding chickens genetics poultry Ethiopia is an ecologically diverse country; the low altitude regions are hot and humid whereas the high altitude regions are cooler. In this study we analyzed the transcriptome response of high altitude (Addis Ababa) and low altitude (Awash) chickens to heat stress conditions that are prevalent in the low altitude regions. The chickens were free ranged for 20 h in an enclosure in Awash, and then the heart, breast muscle and spleen tissues were collected at 6:00 am, 12:00 noon and 6:00 pm to follow a daily circadian cycle. Through RNA‐sequencing analysis, we identified differentially expressed genes (DEGs) that were significant (q < 0.05). These DEGs were subjected to protein–protein interaction (PPI) network and gene co‐expression network (GCN) analyses to understand their role. KEGG pathway analysis and Gene Ontology analysis of all the identified DEGs and the genes identified from the PPI network and GCN analyses revealed that several immune‐related pathways, such as proteasome, focal adhesion, influenza A, the ErbB signaling pathway and glycerophospholipid metabolism, were enriched in response to heat stress. These results suggest that the high altitude chickens were under heat stress and might be immunologically susceptible. Our findings will help in developing a genetic approach to mitigate production loss due to heat stress. 2019-02 2019-01-02T11:28:37Z 2019-01-02T11:28:37Z Journal Article https://hdl.handle.net/10568/98918 en Limited Access Wiley Park, W., Srikanth, K., Lim, D., Park, M., Hur, T., Kemp, S., Dessie, T., Kim, M.S., Lee, S., Te Pas, M.F.W., Kim, J.M. and Park, J.E. 2018. Comparative transcriptome analysis of Ethiopian indigenous chickens from low and high altitudes under heat stress condition reveals differential immune response. Animal Genetics
spellingShingle animal breeding
chickens
genetics
poultry
Park, W.
Srikanth, K.
Lim, D.
Park, M.
Hur, T.
Kemp, Stephen J.
Dessie, Tadelle
Kim, M.S.
Lee, S.
Te Pas, M.F.W.
Kim, J.M.
Park, J.E.
Comparative transcriptome analysis of Ethiopian indigenous chickens from low and high altitudes under heat stress condition reveals differential immune response
title Comparative transcriptome analysis of Ethiopian indigenous chickens from low and high altitudes under heat stress condition reveals differential immune response
title_full Comparative transcriptome analysis of Ethiopian indigenous chickens from low and high altitudes under heat stress condition reveals differential immune response
title_fullStr Comparative transcriptome analysis of Ethiopian indigenous chickens from low and high altitudes under heat stress condition reveals differential immune response
title_full_unstemmed Comparative transcriptome analysis of Ethiopian indigenous chickens from low and high altitudes under heat stress condition reveals differential immune response
title_short Comparative transcriptome analysis of Ethiopian indigenous chickens from low and high altitudes under heat stress condition reveals differential immune response
title_sort comparative transcriptome analysis of ethiopian indigenous chickens from low and high altitudes under heat stress condition reveals differential immune response
topic animal breeding
chickens
genetics
poultry
url https://hdl.handle.net/10568/98918
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