Can rice cultivar with submergence tolerant quantitative trait locus (<i>SUB1</i>) manage submergence stress better during reproductive stage?

Ray, Anuprita; Panda, Debabrata; Sarkar, Ramani Kumar

doi:10.1080/03650340.2016.1254773

Cited by 9 publications

(5 citation statements)

References 30 publications

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“…Sub1's submergence tolerance locus was incorporated using marker‐assisted backcrossing (Neeraja et al, 2007). Compared to Swarna‐Sub1 and Swarna , Baliadhan , a traditional rice cultivar containing the Sub1 QTL, thrive better under submergence stress at the reproductive stage (Ray et al, 2017). The salt‐tolerant rice lines ‘IR84649‐81‐4‐B‐B' and ‘IR84645‐311‐22‐1‐B' had 91 percent and 85 percent mean plant survival, respectively, after two weeks of total submergence (Singh et al, 2021).…”

Section: Prospect Of Rice Cultivation Under Changing Climatementioning

confidence: 99%

Rice and food security: Climate change implications and the future prospects for nutritional security

Rezvi

Tahjib‐Ul‐Arif

Azim³

et al. 2022

Food and Energy Security

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Environmental stresses including salinity, drought, cold, warmer temperatures, alterations in precipitation patterns, fluctuations of weather events, and increasing insect and disease infestations negatively affect crop production and nutritional values. This situation becomes further complicated due to the changing climatic conditions, thus raising concern about food security worldwide. Some worst‐case projections indicated that by 2100, CO2 concentrations will reach 950 parts per million, temperatures will climb by 3.5 to more than 8°C, sea level will rise by more than 2.4 meters, and the average farmland drought risk index will increase from 52.45 to 129. In addition, average precipitation will increase by 1%–3% in some areas and atmospheric water vapor will increase by 6%–7% for every degree of temperature rise. Rice (Oryza sativa L.) is a staple crop in many parts of the world. The main objective of this review is to highlight the prospects of rice for future climatic conditions. The present review depicts the advantages and prospects of rice and addresses why rice is a better option as a cereal crop for the future situations for food and nutritional sustainability. The impact of climate change on food and nutritional security can be mitigated by developing biotic and abiotic stress‐tolerant and biofortified rice varieties. These rice cultivars can withstand the negative effects of climate change while also meeting the nutritional needs of future generations. Furthermore, this review underlines the forthcoming issues and measures that should be addressed to assure a sustainable food and nutritional supply in the era of global climate change.

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Section: Prospect Of Rice Cultivation Under Changing Climatementioning

confidence: 99%

Rice and food security: Climate change implications and the future prospects for nutritional security

Rezvi

Tahjib‐Ul‐Arif

Azim³

et al. 2022

Food and Energy Security

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“…12 observed that the QTL is not effective in semi-dwarf rice cultivars under partial SF; cultivars like Swarna and SwarnaSub1 were more sensitive to long term partial SF than inherently taller cultivars. Earlier we reported greater loss of yield under submergence in SwarnaSub1 compared to traditional cultivar Balidhan 61 and significant variation among cultivars in stem elongation ability under submergence 31 .These reports denote that resilience of genotypes to SF depends less on Sub1- introgression and more so on the genetic make up. This is in conformity with observation of Singh et al .…”

Section: Discussionmentioning

confidence: 55%

Introgression of Sub1 (SUB1) QTL in mega rice cultivars increases ethylene production to the detriment of grain- filling under stagnant flooding

Kuanar

Molla

Chattopadhyay

et al. 2019

Sci Rep

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In the recent time, Submergence1 (Sub1)QTL, responsible for imparting tolerance to flash flooding, has been introduced in many rice cultivars, but resilience of the QTL to stagnant flooding (SF) is not known. The response of Sub1-introgression has been tested on physiology, molecular biology and yield of two popular rice cultivars (Swarna and Savitri) by comparison of the parental and Sub1-introgression lines (SwarnaSub1 and SavitriSub1) under SF. Compared to control condition SF reduced grain yield and tiller number and increased plant height and Sub1- introgression mostly matched these effects. SF increased ethylene production by over-expression of ACC-synthase and ACC-oxidase enzyme genes of panicle before anthesis in the parental lines. Expression of the genes changed with Sub1-introgression, where some enzyme isoform genes over-expressed after anthesis under SF. Activities of endosperm starch synthesizing enzymes SUS and AGPase declined concomitantly with rise ethylene production in the Sub1-introgressed lines resulting in low starch synthesis and accumulation of soluble carbohydrates in the developing spikelets. In conclusion, Sub1-introgression into the cultivars increased susceptibility to SF. Subjected to SF, the QTL promoted genesis of ethylene in the panicle at anthesis to the detriment of grain yield, while compromising with morphological features like tiller production and stem elongation.

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“…In contrast, submergence1A-1 (Sub1A-1) restricts shoot elongation for adaptation and induces alcohol dehydrogenase genes for carbohydrate production [ 52 , 162 ]. A traditional rice cultivar “Baliadhan,” with SUB1 QTL is flooding tolerant during reproductive stage more than Swarna and Swarna-Sub1 [ 51 , 163 ]. However, cultivar FR13A (Dhalaputia) tolerates flooding even more easily because of long stature [ 164 ] and retaining airy zones (gas films) around their leaves for longer durations [ 51 ].…”

Section: Impact Of Individual Combined and Sequential Stresses On Plantsmentioning

confidence: 99%

Elucidating the Response of Crop Plants towards Individual, Combined and Sequentially Occurring Abiotic Stresses

Anwar

Joshi

Dhankher

et al. 2021

IJMS

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In nature, plants are exposed to an ever-changing environment with increasing frequencies of multiple abiotic stresses. These abiotic stresses act either in combination or sequentially, thereby driving vegetation dynamics and limiting plant growth and productivity worldwide. Plants’ responses against these combined and sequential stresses clearly differ from that triggered by an individual stress. Until now, experimental studies were mainly focused on plant responses to individual stress, but have overlooked the complex stress response generated in plants against combined or sequential abiotic stresses, as well as their interaction with each other. However, recent studies have demonstrated that the combined and sequential abiotic stresses overlap with respect to the central nodes of their interacting signaling pathways, and their impact cannot be modelled by swimming in an individual extreme event. Taken together, deciphering the regulatory networks operative between various abiotic stresses in agronomically important crops will contribute towards designing strategies for the development of plants with tolerance to multiple stress combinations. This review provides a brief overview of the recent developments in the interactive effects of combined and sequentially occurring stresses on crop plants. We believe that this study may improve our understanding of the molecular and physiological mechanisms in untangling the combined stress tolerance in plants, and may also provide a promising venue for agronomists, physiologists, as well as molecular biologists.

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Can rice cultivar with submergence tolerant quantitative trait locus (SUB1) manage submergence stress better during reproductive stage?

Cited by 9 publications

References 30 publications

Rice and food security: Climate change implications and the future prospects for nutritional security

Rice and food security: Climate change implications and the future prospects for nutritional security

Introgression of Sub1 (SUB1) QTL in mega rice cultivars increases ethylene production to the detriment of grain- filling under stagnant flooding

Elucidating the Response of Crop Plants towards Individual, Combined and Sequentially Occurring Abiotic Stresses

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