Temporal transcriptomic differences between tolerant and susceptible genotypes contribute to rice drought tolerance
Abstract Background Drought-tolerance ensures a crop to maintain life activities and protect cell from damages under dehydration. It refers to diverse mechanisms temporally activated when the crop adapts to drought. However, knowledge about the temporal dynamics of rice transcriptome under drought i...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2020-11-01
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| Series: | BMC Genomics |
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| Online Access: | http://link.springer.com/article/10.1186/s12864-020-07193-7 |
| _version_ | 1818550846139400192 |
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| author | Hui Xia Xiaosong Ma Kai Xu Lei Wang Hongyan Liu Liang Chen Lijun Luo |
| author_facet | Hui Xia Xiaosong Ma Kai Xu Lei Wang Hongyan Liu Liang Chen Lijun Luo |
| author_sort | Hui Xia |
| collection | DOAJ |
| description | Abstract Background Drought-tolerance ensures a crop to maintain life activities and protect cell from damages under dehydration. It refers to diverse mechanisms temporally activated when the crop adapts to drought. However, knowledge about the temporal dynamics of rice transcriptome under drought is limited. Results Here, we investigated temporal transcriptomic dynamics in 12 rice genotypes, which varied in drought tolerance (DT), under a naturally occurred drought in fields. The tolerant genotypes possess less differentially expressed genes (DEGs) while they have higher proportions of upregulated DEGs. Tolerant and susceptible genotypes have great differences in temporally activated biological processes (BPs) during the drought period and at the recovery stage based on their DEGs. The DT-featured BPs, which are activated specially (e.g. raffinose, fucose, and trehalose metabolic processes, etc.) or earlier in the tolerant genotypes (e.g. protein and histone deacetylation, protein peptidyl-prolyl isomerization, transcriptional attenuation, ferric iron transport, etc.) shall contribute to DT. Meanwhile, the tolerant genotypes and the susceptible genotypes also present great differences in photosynthesis and cross-talks among phytohormones under drought. A certain transcriptomic tradeoff between DT and productivity is observed. Tolerant genotypes have a better balance between DT and productivity under drought by activating drought-responsive genes appropriately. Twenty hub genes in the gene coexpression network, which are correlated with DT but without potential penalties in productivity, are recommended as good candidates for DT. Conclusions Findings of this study provide us informative cues about rice temporal transcriptomic dynamics under drought and strengthen our system-level understandings in rice DT. |
| first_indexed | 2024-12-12T08:51:57Z |
| format | Article |
| id | doaj.art-7871f20bb4834aaebc610ac9969b6151 |
| institution | Directory Open Access Journal |
| issn | 1471-2164 |
| language | English |
| last_indexed | 2024-12-12T08:51:57Z |
| publishDate | 2020-11-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Genomics |
| spelling | doaj.art-7871f20bb4834aaebc610ac9969b61512022-12-22T00:30:10ZengBMCBMC Genomics1471-21642020-11-0121111810.1186/s12864-020-07193-7Temporal transcriptomic differences between tolerant and susceptible genotypes contribute to rice drought toleranceHui Xia0Xiaosong Ma1Kai Xu2Lei Wang3Hongyan Liu4Liang Chen5Lijun Luo6Shanghai Agrobiological Gene CenterShanghai Agrobiological Gene CenterShanghai Agrobiological Gene CenterShanghai Agrobiological Gene CenterShanghai Agrobiological Gene CenterShanghai Agrobiological Gene CenterShanghai Agrobiological Gene CenterAbstract Background Drought-tolerance ensures a crop to maintain life activities and protect cell from damages under dehydration. It refers to diverse mechanisms temporally activated when the crop adapts to drought. However, knowledge about the temporal dynamics of rice transcriptome under drought is limited. Results Here, we investigated temporal transcriptomic dynamics in 12 rice genotypes, which varied in drought tolerance (DT), under a naturally occurred drought in fields. The tolerant genotypes possess less differentially expressed genes (DEGs) while they have higher proportions of upregulated DEGs. Tolerant and susceptible genotypes have great differences in temporally activated biological processes (BPs) during the drought period and at the recovery stage based on their DEGs. The DT-featured BPs, which are activated specially (e.g. raffinose, fucose, and trehalose metabolic processes, etc.) or earlier in the tolerant genotypes (e.g. protein and histone deacetylation, protein peptidyl-prolyl isomerization, transcriptional attenuation, ferric iron transport, etc.) shall contribute to DT. Meanwhile, the tolerant genotypes and the susceptible genotypes also present great differences in photosynthesis and cross-talks among phytohormones under drought. A certain transcriptomic tradeoff between DT and productivity is observed. Tolerant genotypes have a better balance between DT and productivity under drought by activating drought-responsive genes appropriately. Twenty hub genes in the gene coexpression network, which are correlated with DT but without potential penalties in productivity, are recommended as good candidates for DT. Conclusions Findings of this study provide us informative cues about rice temporal transcriptomic dynamics under drought and strengthen our system-level understandings in rice DT.http://link.springer.com/article/10.1186/s12864-020-07193-7RNA-sequencingDrought toleranceTranscriptomic tradeoffOryza sativa |
| spellingShingle | Hui Xia Xiaosong Ma Kai Xu Lei Wang Hongyan Liu Liang Chen Lijun Luo Temporal transcriptomic differences between tolerant and susceptible genotypes contribute to rice drought tolerance BMC Genomics RNA-sequencing Drought tolerance Transcriptomic tradeoff Oryza sativa |
| title | Temporal transcriptomic differences between tolerant and susceptible genotypes contribute to rice drought tolerance |
| title_full | Temporal transcriptomic differences between tolerant and susceptible genotypes contribute to rice drought tolerance |
| title_fullStr | Temporal transcriptomic differences between tolerant and susceptible genotypes contribute to rice drought tolerance |
| title_full_unstemmed | Temporal transcriptomic differences between tolerant and susceptible genotypes contribute to rice drought tolerance |
| title_short | Temporal transcriptomic differences between tolerant and susceptible genotypes contribute to rice drought tolerance |
| title_sort | temporal transcriptomic differences between tolerant and susceptible genotypes contribute to rice drought tolerance |
| topic | RNA-sequencing Drought tolerance Transcriptomic tradeoff Oryza sativa |
| url | http://link.springer.com/article/10.1186/s12864-020-07193-7 |
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