Transcriptomic analysis of Gracilaria changii (Rhodophyta) in response to hyper- and hypo-osmotic stresses
Osmotic stress is one of the most significant natural abiotic stresses that occur in the intertidal zones. Seaweeds may physiologically acclimate to changing osmolarity by altering their transcriptome. Here, we investigated the transcriptomic changes of Gracilaria changii (B. M. Xia et I. A. Abbott)...
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| Format: | Article |
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Phycological Society of America
2009
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| Online Access: | http://psasir.upm.edu.my/id/eprint/17470/ http://psasir.upm.edu.my/id/eprint/17470/1/Transcriptomic%20analysis%20of%20Gracilaria%20changii.pdf |
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| author | Teo, Swee Sen Ho, Chai Ling Teoh, Seddon Abdul Rahim, Raha Phang, Siew Moi |
| author_facet | Teo, Swee Sen Ho, Chai Ling Teoh, Seddon Abdul Rahim, Raha Phang, Siew Moi |
| author_sort | Teo, Swee Sen |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Osmotic stress is one of the most significant natural abiotic stresses that occur in the intertidal zones. Seaweeds may physiologically acclimate to changing osmolarity by altering their transcriptome. Here, we investigated the transcriptomic changes of Gracilaria changii (B. M. Xia et I. A. Abbott) I. A. Abbott, J. Zhang et B. M. Xia in response to hyper- and hypoosmotic stresses using a cDNA microarray approach. Microarray analysis revealed that 199 and 200 genes from ∼3,300 genes examined were up- and down-regulated by >2-fold in seaweed samples treated at 50 parts per thousand (ppt) artificial seawater (ASW) compared with those at 30 ppt ASW, respectively. The number of genes that were up- and down-regulated by >2-fold in seaweed samples treated at 10 ppt ASW compared with those at 30 ppt ASW were 154 and 187, respectively. A majority of these genes were only differentially expressed under hyper- or hypoosmotic conditions, whereas 67 transcripts were affected by both stresses. The findings of this study have shed light on the expression profiles of many transcripts during the acclimation of G. changii to hyperosmotic and hypoosmotic conditions. This information may assist in the prioritization of genes to be examined in future studies. |
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| format | Article |
| id | upm-17470 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T08:12:02Z |
| publishDate | 2009 |
| publisher | Phycological Society of America |
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| spelling | upm-174702016-04-22T03:22:28Z http://psasir.upm.edu.my/id/eprint/17470/ Transcriptomic analysis of Gracilaria changii (Rhodophyta) in response to hyper- and hypo-osmotic stresses Teo, Swee Sen Ho, Chai Ling Teoh, Seddon Abdul Rahim, Raha Phang, Siew Moi Osmotic stress is one of the most significant natural abiotic stresses that occur in the intertidal zones. Seaweeds may physiologically acclimate to changing osmolarity by altering their transcriptome. Here, we investigated the transcriptomic changes of Gracilaria changii (B. M. Xia et I. A. Abbott) I. A. Abbott, J. Zhang et B. M. Xia in response to hyper- and hypoosmotic stresses using a cDNA microarray approach. Microarray analysis revealed that 199 and 200 genes from ∼3,300 genes examined were up- and down-regulated by >2-fold in seaweed samples treated at 50 parts per thousand (ppt) artificial seawater (ASW) compared with those at 30 ppt ASW, respectively. The number of genes that were up- and down-regulated by >2-fold in seaweed samples treated at 10 ppt ASW compared with those at 30 ppt ASW were 154 and 187, respectively. A majority of these genes were only differentially expressed under hyper- or hypoosmotic conditions, whereas 67 transcripts were affected by both stresses. The findings of this study have shed light on the expression profiles of many transcripts during the acclimation of G. changii to hyperosmotic and hypoosmotic conditions. This information may assist in the prioritization of genes to be examined in future studies. Phycological Society of America 2009-10 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/17470/1/Transcriptomic%20analysis%20of%20Gracilaria%20changii.pdf Teo, Swee Sen and Ho, Chai Ling and Teoh, Seddon and Abdul Rahim, Raha and Phang, Siew Moi (2009) Transcriptomic analysis of Gracilaria changii (Rhodophyta) in response to hyper- and hypo-osmotic stresses. Journal of Phycology, 45 (5). pp. 1093-1099. ISSN 0022-3646; ESSN: 1529-8817 http://onlinelibrary.wiley.com/doi/10.1111/j.1529-8817.2009.00724.x/abstract 10.1111/j.1529-8817.2009.00724.x |
| spellingShingle | Teo, Swee Sen Ho, Chai Ling Teoh, Seddon Abdul Rahim, Raha Phang, Siew Moi Transcriptomic analysis of Gracilaria changii (Rhodophyta) in response to hyper- and hypo-osmotic stresses |
| title | Transcriptomic analysis of Gracilaria changii (Rhodophyta) in response to hyper- and hypo-osmotic stresses |
| title_full | Transcriptomic analysis of Gracilaria changii (Rhodophyta) in response to hyper- and hypo-osmotic stresses |
| title_fullStr | Transcriptomic analysis of Gracilaria changii (Rhodophyta) in response to hyper- and hypo-osmotic stresses |
| title_full_unstemmed | Transcriptomic analysis of Gracilaria changii (Rhodophyta) in response to hyper- and hypo-osmotic stresses |
| title_short | Transcriptomic analysis of Gracilaria changii (Rhodophyta) in response to hyper- and hypo-osmotic stresses |
| title_sort | transcriptomic analysis of gracilaria changii (rhodophyta) in response to hyper- and hypo-osmotic stresses |
| url | http://psasir.upm.edu.my/id/eprint/17470/ http://psasir.upm.edu.my/id/eprint/17470/ http://psasir.upm.edu.my/id/eprint/17470/ http://psasir.upm.edu.my/id/eprint/17470/1/Transcriptomic%20analysis%20of%20Gracilaria%20changii.pdf |