Wsi18 promoter from wild rice genotype, Oryza nivara, shows enhanced expression under soil water stress in contrast to elite cultivar, IR20

Kaur, Ranjeet; Chakraborty, Anirban; Bhunia, Rupam Kumar; Bhattacharyya, Jagannath; Basu, Ananjan; Sen, Sandeep; Ghosh, Ananta K.

doi:10.1007/s13562-016-0355-9

Cited by 5 publications

(2 citation statements)

References 49 publications

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“…Its overexpression has been demonstrated to enhance drought and salt stress tolerance by scavenging reactive oxygen species in rice (Kumar et al, 2014). The WSI18 has been reported to be induced under drought stress in various studies (Joshee et al, 1998; Kaur et al, 2017; Langille et al, 2018; Yi et al, 2011). The upregulation of WSI18 expression (upregulated 6 fold and 14 fold in seedling and mature stage) in Keketi Joha further supports its potential role in response to water scarcity (Figure 2 & Table S2).…”

Section: Discussionmentioning

confidence: 99%

Transcriptional networks revealed late embryogenesis abundant genes regulating drought mitigation in aromatic Keteki Joha rice

Regon,

Saha,

Jyoti

et al. 2024

Physiologia Plantarum

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Climate change has become increasingly intertwined with the occurrence and severity of droughts. As global temperatures rise due to greenhouse gas emissions, weather patterns are altered, leading to shifts in precipitation levels and distribution. These exacerbate the risk of drought in many regions, with potentially devastating consequences. A comprehensive transcriptome analysis was performed on Keteki Joha, an aromatic rice from North East India, with the aim of elucidating molecular responses to drought. Numerous genes linked to drought were activated, with both ABA‐dependent and ABA‐independent pathways playing crucial roles. Upregulated genes were enriched with gene ontology terms with response to abscisic acid and abscisic acid‐activated signalling pathway, suggesting the existence of an ABA‐dependent pathway for drought mitigation. The upregulated genes were also enriched with responses to stress, water, heat, jasmonic acid, and hydrogen peroxide, indicating the presence of an ABA‐independent pathway alongside the ABA‐dependent mechanism. Weighted Correlation Network Analysis (WGCNA) identified 267 genes that specifically govern drought mitigation in Keteki Joha. The late embryogenesis abundant (LEA) gene family emerges as the most overrepresented in both RNA sequencing data and WGCNA analysis, suggesting their dominant role in mitigating drought. Notably, 31 LEA genes were induced in seedlings and 32 in mature stages under drought stress. The LEA3‐1, LEA14/WSI18, RAB16A, RAB16B, DHN1, DHN6, LEA1, LEA3, LEA17, and LEA33 exhibited and established co‐expression with numerous other drought stress‐related genes, indicating their inseparable role in alleviating drought. Consequently, LEA genes have been proposed to be primary and crucial responders to drought in Keteki Joha.

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Section: Discussionmentioning

confidence: 99%

Transcriptional networks revealed late embryogenesis abundant genes regulating drought mitigation in aromatic Keteki Joha rice

Regon,

Saha,

Jyoti

et al. 2024

Physiologia Plantarum

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“…The genetic variability has become very low in modern cultivars due to intense selection for crop yield while ignoring other associated traits, such as photosynthetic rate per unit leaf area (Richards 2000). It is well-known that introgressions from wild species helps improve qualitative traits, such as disease and pest resistance (Kumar et al 2013, Sarao et al 2016 as well as quantitative traits, such as the grain yield (Gaikwad et al 2014, Arbelaez et al 2015, Ma et al 2016, Eizenga et al 2016, Bessho-Uehara et al 2017, Bhatia et al 2017, Haritha et al 2018, and abiotic stress tolerance to salinity (Quan et al 2018), drought (Kaur et al 2017), and heat (Prasanth et al 2017) in cultivars. O. rufipogon and O. nivara and their derived lines showed a high Chl content, P N, stomatal conductance (gs), transpiration rate (E), carboxylation efficiency (CE), and water-use efficiency (WUE) (Zhao et al 2008(Zhao et al , 2010Kiran et al 2013, Kondamudi et al 2016, Haritha et al 2017, Hamaoka et al 2017.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Oryza nivara introgression lines: A potential prebreeding resource to improve net photosynthetic rate in elite cultivars of rice

Guttikonda¹,

Vishnukiran²,

Rao³

et al. 2019

Photosynt.

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Photosynthesis is one of the fundamental processes influencing crop growth and productivity. In order to understand better the basis of variation in net photosynthetic rate (PN) and yield potential in rice, two backcross populations derived from Swarna × O. nivara were studied. Gas exchange and chlorophyll fluorescence measurements were taken at flowering stage and data on yield traits at harvest. PN was significantly correlated with stomatal conductance, transpiration rate, mesophyll conductance, carboxylation efficiency, yield per plant (YLDP), and dry mass in both populations. Ten introgression lines (ILs) showed higher PN than their parents. IL 230S showed highest PN with increased YLDP than the remaining ILs. Single marker analysis showed RM514 and RM48 was positively associated with PN and YLDP in popA, whereas RM204 and RM122 in popB. The first 4 principal components contributed 92 and 93% to the total genetic variation in each population, respectively.

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Tolerance to soil water stress by Oryza sativa cv. IR20 was improved by expression of Wsi18 gene locus from Oryza nivara

Kaur¹,

Chakraborty²,

Bhunia³

et al. 2018

Biologia plant.

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Wsi18 promoter from wild rice genotype, Oryza nivara, shows enhanced expression under soil water stress in contrast to elite cultivar, IR20

Cited by 5 publications

References 49 publications

Transcriptional networks revealed late embryogenesis abundant genes regulating drought mitigation in aromatic Keteki Joha rice

Transcriptional networks revealed late embryogenesis abundant genes regulating drought mitigation in aromatic Keteki Joha rice

Characterization of Oryza nivara introgression lines: A potential prebreeding resource to improve net photosynthetic rate in elite cultivars of rice

Tolerance to soil water stress by Oryza sativa cv. IR20 was improved by expression of Wsi18 gene locus from Oryza nivara

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