Genetic potentiality of indigenous rice genotypes from Eastern India with reference to submergence tolerance and deepwater traits

Goswami, Sayani; Kar, Rup Kumar; Paul, Anupam; Dey, Narottam

doi:10.1016/j.cpb.2017.10.002

Cited by 17 publications

(11 citation statements)

References 31 publications

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“…From the earlier report it was confirmed that SUB1A was highly expressed in FR13A and almost not detected in IR42. With reference to previous reports we have succesfully transferred the highly tolerant rice submergence QTL Sub1 using FR13A, in Improved Tapaswini background using the closest markers SUB1BC2 89 – 91 . In a genome scale gene expression analysis it was found that between the two genotypes salinity suceptable IR29 and tolerant FL478 both are strikingly different at their transcriptional perspective, under salinity stress.…”

Section: Discussionmentioning

confidence: 98%

Improved Tapaswini having four BB resistance genes pyramided with six genes/QTLs, resistance/tolerance to biotic and abiotic stresses in rice

Das

Rao

Varier³

et al. 2018

Sci Rep

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Rice, a major food crop, is grown in a wide range of ecological conditions and suffers significant yield losses as it is constantly exposed to a wide range of environmental and biotic stresses. The prevalence of different biotypes/strains has necessitated assembling of numerous resistance genes/QTLs into elite genotypes to confer a broader scale of resistance. The current study reports successful pyramiding of genes/QTLs that confer tolerance/resistance to submergence (Sub1), salinity (Saltol), blast (Pi2, Pi9) and gall midge (Gm1, Gm4) to supplement the four bacterial blight resistance genes (Xa 4, xa5, xa13, Xa21) present in Improved Tapaswini, an elite cultivar. The precise transfer of genes/QTLs was accomplished through effective foreground selection and suitable gene pyramids were identified. Background selection was practiced using morphological and grain quality traits to enhance the recovery of the recurrent parental genome. In the bioassays, the pyramids exhibited higher levels of resistance/ tolerance against the target stresses. The novel feature of the study was successful pyramidization and demonstration of the function of ten genes/QTLs in a new genotype. This success can stimulate several such studies to realize the full potential of molecular plant breeding as the foundation for rice improvement.

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Section: Discussionmentioning

confidence: 98%

Improved Tapaswini having four BB resistance genes pyramided with six genes/QTLs, resistance/tolerance to biotic and abiotic stresses in rice

Das

Rao

Varier³

et al. 2018

Sci Rep

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“…The yield gap is substantially high because of the high yielding rice varieties grown in these areas are susceptible to submergence and perish within 7-14 days (d) of waterlogging (Sarkar et al 2006;Ismail et al 2013;Singh et al 2017). Therefore breeding for submergence tolerance trait will be crucial for maintaining stable yields in these rainfed lowland rice ecosystems (Dar et al 2017;Goswami et al 2017). In the last decade, molecular mechanisms underlying flash flood tolerance have been revealed by the identification of major QTL, Sub1 from FR 13A, a submergence tolerant rice cultivar of Odisha, India (Xu et al 2006).…”

Section: Introductionmentioning

confidence: 99%

“…However, these improved varieties are unsuitable for most of the lowland areas where the depth of waterlogging is high and longer duration of flooding occurs. This is mainly attributed to the short plant height and quiescence to submergence combating physiology (Iftekharuddaula et al 2016;Goswami et al 2017). Therefore, farmers are hesitating to adopt these genotypes because of poor performance under varying water depths (Goswami et al 2017;Afrin et al 2018).…”

Section: Introductionmentioning

confidence: 99%

“…This is mainly attributed to the short plant height and quiescence to submergence combating physiology (Iftekharuddaula et al 2016;Goswami et al 2017). Therefore, farmers are hesitating to adopt these genotypes because of poor performance under varying water depths (Goswami et al 2017;Afrin et al 2018). Due to the adverse environment in a rainfed ecosystem, many different types of traditional rice cultivars are being cultivated by farmers.…”

Section: Introductionmentioning

confidence: 99%

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Leaf photosynthesis and antioxidant response in selected traditional rice landraces of Jeypore tract of Odisha, India to submergence

Barik

Panda

Mohanty³

et al. 2019

Physiol Mol Biol Plants

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Submergence tolerance in rice is important for improving yield under rain-fed lowland rice ecosystem. In this study, five traditional rice landraces having submergence tolerance phenotype were selected. These five rice landraces were chosen based on the submergence-tolerance screening of 88 rice landraces from various lowland areas of Jeypore tract of Odisha in our previous study. These five rice landraces were further used for detailed physiological assessment under control, submergence and subsequent reaeration to judge their performance under different duration of submergence. Seedling survival was significantly decreased with the increase of plant height and significant varietal difference was observed after 14 days of complete submergence. Results showed that submergence progressively declined the leaf photosynthetic rate, stomatal conductance, instantaneous water use efficiency, carboxylation efficiency, photosystem II (PSII) activity and chlorophyll, with greater effect observed in susceptible check variety (IR 42). Notably, higher activities of antioxidative enzymes and ascorbate level were observed in traditional rice landraces and were found comparable with the tolerant check variety (FR 13A). Taken together, three landraces such as Samudrabali, Basnamundi and Gadaba showed better photosynthetic activity than that of tolerant check variety (FR 13A) and showed superior antioxidant response to submergence and subsequent re-aeration. These landraces can be considered as potential donors for the future submergence tolerance breeding program.

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“…Rice yields in lowland areas are regularly affected by flooding during monsoon in many Southeast Asian countries (Goswami et al 2017). Globally, rainfed lowland and deep-water rice account for about one third of the total rice-growing area, which is about 50 Mha (Bailey-Serres and Voesenek 2008).…”

Section: Introductionmentioning

confidence: 99%

Yield and photochemical activity of selected rice cultivars from Eastern India under medium depth stagnant flooding

Panda¹,

Ray²,

Sarkar³

2019

Photosynt.

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Stagnant flooding (SF) is a serious threat for rice production in rainfed lowland areas of Southeast Asian countries. To overview the SF effect, photosynthetic performances and productivity were studied with three landraces (Ravana, Kamini, and Rashpanjor) and four high-yielding cultivars (Savitri, Savitri-Sub1, Gayatri, and Varshadhan) of rice under medium depth (40-50 cm) of water level. Stagnant flooding significantly increased the stem elongation and decreased yield and yield attributing parameters. The chlorophyll a fluorescence rises from O-to P-step with distinct J-and I-step were noticed in all the cultivars up to 75 d of SF. Prolonged flooding (> 2 months) perturbed both donor and acceptor side of PSII. Vitality indices (PIABS and PITOT) decreased greatly under prolonged SF. Analysis of O-J-I-P transients suggests that the information is useful for agricultural planning with the purpose to enhance rice yield under lowland medium depth SF.

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Genetic potentiality of indigenous rice genotypes from Eastern India with reference to submergence tolerance and deepwater traits

Cited by 17 publications

References 31 publications

Improved Tapaswini having four BB resistance genes pyramided with six genes/QTLs, resistance/tolerance to biotic and abiotic stresses in rice

Improved Tapaswini having four BB resistance genes pyramided with six genes/QTLs, resistance/tolerance to biotic and abiotic stresses in rice

Leaf photosynthesis and antioxidant response in selected traditional rice landraces of Jeypore tract of Odisha, India to submergence

Yield and photochemical activity of selected rice cultivars from Eastern India under medium depth stagnant flooding

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