Linking ecophysiological modelling with quantitative genetics to support marker-assisted crop design for improved yields of rice (Oryza sativa) under drought stress

Gu, Junfei; Yin, Xinyou; Zhang, Chengwei; Wang, Huaqi; Struik, P.C.

doi:10.1093/aob/mcu127

Cited by 50 publications

(58 citation statements)

References 49 publications

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“…Another option is to develop more in-depth analysis of the physiological mechanisms at root level allowing sustained shoot growth. An ecophysiological model can assist breeders in their selection process as it is capable of reducing the residual variance and improving the expression and evaluation of cultivar differences in relation to N uptake and use efficiency (Hirel et al 2011;Kerbiriou et al 2014;Gu et al 2014). In addition, Han et al (2015) stressed the relative importance of accurate phenotyping and experimental designs over genotyping for such complex traits as NUE.…”

Section: Do Crop Traits Contributing To Nitrogen Use Efficiency Diffementioning

confidence: 99%

Diverse concepts of breeding for nitrogen use efficiency. A review

Bueren

Struik

2017

Agron. Sustain. Dev.

Self Cite

105

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Cropping systems require careful nitrogen (N) management to increase the sustainability of agricultural production. One important route towards enhanced sustainability is to increase nitrogen use efficiency. Improving nitrogen use efficiency encompasses increasing N uptake, N utilization efficiency, and N harvest index, each involving many crop physiological mechanisms and agronomic traits. Here, we review recent developments in cultural practices, cultivar choice, and breeding regarding nitrogen use efficiency. We add a comparative analysis of our own research on designing breeding strategies for nitrogen use efficiency in leafy and non-leafy vegetables, literature on breeding for nitrogen use efficiency in other vegetables (cabbage, cauliflower), and literature on breeding for nitrogen use efficiency in grain crops. We highlight traits that are generic across species, demonstrate how traits contributing to nitrogen use efficiency differ among crops, and show how cultural practice affects the relevance of these traits. Our review indicates that crops harvested in their early or late vegetative phase or reproductive phase differ in traits relevant to improve nitrogen use efficiency. Headforming crops (lettuce, cabbage) depend on the prolonged photosynthesis of outer leaves to provide the carbon sources for continued N supply and growth of the photosynthetically less active, younger inner leaves. Grain crops largely depend on prolonged N availability for uptake and on availability of N in stover for remobilization to the grains. Improving root performance is relevant for all crop types, but especially shortcycle vegetable crops benefit from early below-ground vigor. We conclude that there is sufficient genetic variation available among modern cultivars to further improve nitrogen use efficiency but that it requires integration of agronomy, crop physiology, and efficient selection strategies to make rapid progress in breeding. We also conclude that discriminative traits related to nitrogen use efficiency better express themselves under low input than under high input. However, testing under both low and high input can yield cultivars that are adapted to low-input conditions but also respond to high-input conditions. The benefits of increased nitrogen use efficiency through breeding are potentially large but realizing these benefits is challenged by the huge genotype-byenvironment interaction and the complex behavior of nitrogen in the cropping system.

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Section: Do Crop Traits Contributing To Nitrogen Use Efficiency Diffementioning

confidence: 99%

Diverse concepts of breeding for nitrogen use efficiency. A review

Bueren

Struik

2017

Agron. Sustain. Dev.

Self Cite

105

View full text Add to dashboard Cite

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“…Under normal irrigation, water remains 2 to 10 cm above the soil surface. Since the water distribution of north-east of China is uneven, so we set drought-stressed treatments as natural rain-fed conditions to simulate natural drought stress in the actual production process (Gu, Yin, Zhang, Wang, & Struik, 2014;Prince, Beena, Gomez, Senthivel, & Babu, 2015). We stopped irrigation after the tillering stage until harvest and replenished the water when the soil water potential was below À50 kPa to save the plants from being exposed to very severe stress that leads to death in reproductive stage (Kumar, Venuprasad, & Atlin, 2007).…”

Section: Evaluation Of Cold Tolerance and Drought Tolerancementioning

confidence: 99%

QTL mapping for heading date, leaf area and chlorophyll content under cold and drought stress in two related recombinant inbred line populations (Japonica rice) and meta‐analysis

et al. 2018

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Rice is highly susceptible to drought and cold. The goal of this study was to identify the QTLs affecting the rice heading date (HD), leaf area (LA) and chlorophyll content (CC) under cold and drought stress. A total of twenty‐nine and thirty‐eight additive QTLs were detected from two crosses of ‘Dongnong422’/‘Kongyu131’ and ‘Xiaobaijingzi’/‘Kongyu131’, respectively. qHD1‐7‐1, qHD1‐7‐2, qHD1‐2‐1, qLA1‐7‐1, qLA1‐6‐3 and qCC1‐7‐1 show adaptive effects under cold treatment, while qHD2‐2‐3, qHD2‐2‐2, qLA2‐7‐3 and qCC2‐5‐1 were important for explaining the genetic mechanism during drought tolerance. Additionally, nine and five additive × environment interaction QTLs were detected for two RILs, respectively. RIL26 and RIL73 were two lines that are associated with cold and drought for HD. 339 QTLs related to HD, CC and LA of rice from database and our research were projected onto the genetic map. Nine cloned genes and nineteen homologous candidate genes related to HD, CC, cold tolerance and drought tolerance were mapped by meta‐analysis. These results lay the foundation for the fine mapping of QTLs related to HD, LA and CC for marker‐assisted selection.

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“…Moreover, a Fig. 1 The principal components of a crop field and its adjacent areas (after Greaves and Marshall (1987) and Marshall and Moonen (2002)). This paper focuses on plant diversity within the field (field core and crop edge) and the field margin strip number of functions can contribute to a given ecosystem service, whereas a single function can provide a range of services (De Bello et al 2010).…”

Section: Plant Diversity In Multiple Cropping Systemsmentioning

confidence: 99%

Multiple cropping systems as drivers for providing multiple ecosystem services: from concepts to design

Gaba

Lescourret

Boudsocq

et al. 2014

Agron. Sustain. Dev.

258

174

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Provisioning services, such as the production of food, feed, and fiber, have always been the main focus of agriculture. Since the 1950s, intensive cropping systems based on the cultivation of a single crop or a single cultivar, in simplified rotations or monocultures, and relying on extensive use of agrochemical inputs have been preferred to more diverse, self-sustaining cropping systems, regardless of the environmental consequences. However, there is increasing evidence that such intensive agroecosystems have led to a decline in biodiversity as well as threatening the environment and have damaged a number of ecosystem services such as the biogeochemical nutrient cycles and the regulation of climate and water quality. Consequently, the current challenge facing agriculture is to ensure the future of food production while reducing the use of inputs and limiting environmental impacts and the loss of biodiversity. Here, we review examples of multiple cropping systems that aim to use biotic interactions to reduce chemical inputs and provide more ecosystem services than just provisioning. Our main findings are the identification of underlying ecological processes and management strategies related to the provision of pairs of ecosystem services namely food production and a regulation service. We also found gaps between ecological knowledge and the constraints of agricultural practices in taking account of the interactions and possible trade-offs between multiple ecosystem services as well as socioeconomic constraints. We present guidelines for the design of multiple cropping systems combining ecological, agricultural, and genetic concepts and approaches.

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Linking ecophysiological modelling with quantitative genetics to support marker-assisted crop design for improved yields of rice (Oryza sativa) under drought stress

Cited by 50 publications

References 49 publications

Diverse concepts of breeding for nitrogen use efficiency. A review

Diverse concepts of breeding for nitrogen use efficiency. A review

QTL mapping for heading date, leaf area and chlorophyll content under cold and drought stress in two related recombinant inbred line populations (Japonica rice) and meta‐analysis

Multiple cropping systems as drivers for providing multiple ecosystem services: from concepts to design

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