Recent progress on molecular breeding of rice in China

Rao, Yuchun; Li, Yuanyuan; Qian, Qian

doi:10.1007/s00299-013-1551-x

Cited by 77 publications

(44 citation statements)

References 98 publications

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“…The lower cost, high read accuracy, and competing sequencing systems are increasing the availability of markers for crop breeding (Kang et al, 2016). Today we have several successful examples whereby application of molecular tools has effectively contributed to developing cultivars in rice (Miah et al, 2013;Rao et al, 2014), millet (Goron and Raizada, 2015), maize (Prasanna et al, 2010), several legumes (Pandey et al, 2016), and horticultural crops (Kole et al, 2015;Iwata et al, 2016). The other application area of these array-and NGS-based platforms is for association of available natural diversity with traits of agronomic importance, which have improved our understanding of the genetics of important traits.…”

Section: Potential Of Molecular Breeding In Developing Next-generatiomentioning

confidence: 99%

Crop Breeding Chips and Genotyping Platforms: Progress, Challenges, and Perspectives

et al. 2017

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There is a rapidly rising trend in the development and application of molecular marker assays for gene mapping and discovery in field crops and trees. Thus far, more than 50 SNP arrays and 15 different types of genotyping-by-sequencing (GBS) platforms have been developed in over 25 crop species and perennial trees. However, much less effort has been made on developing ultra-high-throughput and cost-effective genotyping platforms for applied breeding programs. In this review, we discuss the scientific bottlenecks in existing SNP arrays and GBS technologies and the strategies to develop targeted platforms for crop molecular breeding. We propose that future practical breeding platforms should adopt automated genotyping technologies, either array or sequencing based, target functional polymorphisms underpinning economic traits, and provide desirable prediction accuracy for quantitative traits, with universal applications under wide genetic backgrounds in crops. The development of such platforms faces serious challenges at both the technological level due to cost ineffectiveness, and the knowledge level due to large genotype-phenotype gaps in crop plants. It is expected that such genotyping platforms will be achieved in the next ten years in major crops in consideration of (a) rapid development in gene discovery of important traits, (b) deepened understanding of quantitative traits through new analytical models and population designs, (c) integration of multi-layer -omics data leading to identification of genes and pathways responsible for important breeding traits, and (d) improvement in cost effectiveness of large-scale genotyping. Crop breeding chips and genotyping platforms will provide unprecedented opportunities to accelerate the development of cultivars with desired yield potential, quality, and enhanced adaptation to mitigate the effects of climate change.

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Section: Potential Of Molecular Breeding In Developing Next-generatiomentioning

confidence: 99%

Crop Breeding Chips and Genotyping Platforms: Progress, Challenges, and Perspectives

et al. 2017

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“…for more or less 90% of milled rice weight (Yoshida, 1972;Rao et al, 2014), the starch physicochemical properties, like gel consistency and amylose content, have considerable impacts on grain quality and are proposed as useful indicators for assessment of eating and cooking quality (Nakamura et al, 1989;Bao et al, 2002;Fitzgerald et al, 2009). Protein, next to starch, is the second main ingredient of rice grains.…”

Section: Response Of Grain Quality To Alternate Wetting and Moderate mentioning

confidence: 99%

Response of Grain Quality to Alternate Wetting and Moderate Soil Drying Irrigation in Rice

et al. 2019

Crop Science

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Alternate wetting and moderate soil drying irrigation (WMD) has been widely adopted in rice (Oryza sativa L.) production for saving irrigation water and increasing grain yield. However, limited information is available about the effect of WMD on rice grain quality. The main purpose of this study was to evaluate the characteristics of grain quality in response to WMD. Two rice varieties, Yangdao 6 (YD6, indica) and Hanyou 8 (HY8, japonica), were grown in the field, with two water management treatments, well‐watered (WW) and WMD from 10 d after transplanting to maturity. In comparison with WW, WMD prominently increased grain yield by 7.57 to 9.72%, and improved some grain quality parameters such as milling, appearance, and eating and cooking qualities, including increases in head rice and decreases in chalkiness. The two varieties showed the same tendency. However, WMD had a negative impact on some nutritional quality traits in rice grains, such as reduction in the contents of amino acids and the micronutrient elements Cu, Fe, Mn, Mo, Se, and Zn. The WMD treatment also markedly decreased As content and exhibited no significant effect on Cd content in grains. The results demonstrated that WMD has an overall impact on rice grain quality with both positive and negative effects.

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“…As a result, diets over-reliant on white rice risk deficiencies for several nutritional factors (Verma and Shukla, 2011;Sharma et al, 2013;Saneei et al, 2016;Sarma et al, 2018). The focus of rice breeding has long been concentrated on improving the crop's productivity, although some emphasis has been given to improving the size, shape, and amylose content of the grain (Breseghello, 2013;Rao et al, 2014). The nutritional quality of the grain produced by certain traditional landraces has been shown to be higher than that of the grain produced by conventional, modern rice varieties, largely due to their more effective accumulation of bioactive compounds (Bhat and Riar, 2015;Berni et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

The Genetic Basis and Nutritional Benefits of Pigmented Rice Grain

et al. 2020

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Improving the nutritional quality of rice grains through modulation of bioactive compounds and micronutrients represents an efficient means of addressing nutritional security in societies which depend heavily on rice as a staple food. White rice makes a major contribution to the calorific intake of Asian and African populations, but its nutritional quality is poor compared to that of pigmented (black, purple, red orange, or brown) variants. The compounds responsible for these color variations are the flavonoids anthocyanin and proanthocyanidin, which are known to have nutritional value. The rapid progress made in the technologies underlying genome sequencing, the analysis of gene expression and the acquisition of global 'omics data, genetics of grain pigmentation has created novel opportunities for applying molecular breeding to improve the nutritional value and productivity of pigmented rice. This review provides an update on the nutritional value and health benefits of pigmented rice grain, taking advantage of both indigenous and modern knowledge, while also describing the current approaches taken to deciphering the genetic basis of pigmentation.

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Recent progress on molecular breeding of rice in China

Cited by 77 publications

References 98 publications

Crop Breeding Chips and Genotyping Platforms: Progress, Challenges, and Perspectives

Crop Breeding Chips and Genotyping Platforms: Progress, Challenges, and Perspectives

Response of Grain Quality to Alternate Wetting and Moderate Soil Drying Irrigation in Rice

The Genetic Basis and Nutritional Benefits of Pigmented Rice Grain

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