Transgressive variants for red pericarp grain with high yield potential derived from Oryza rufipogon×Oryza sativa: Field evaluation, screening for blast disease, QTL validation and background marker analysis for agronomic traits

Bhuiyan, Md. Atiqur Rahman; Narimah, Md. Kairudin; Harun, Abdul Rahim; Abdullah, M. Z.; Wickneswari, R.

doi:10.1016/j.fcr.2010.12.012

Cited by 9 publications

(14 citation statements)

References 34 publications

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“…Understanding the mode of inheritance of grain pigmentation, identifying beneficial alleles of the key genes underlying these traits, and developing trait-specific markers, will contribute to accelerating efforts to breed high yielding pigmented rice varieties. Advanced generation breeding lines of pigmented lines have been developed (Bhuiyan et al, 2011;Arbelaez et al, 2015). A black rice line has been developed in the genetic background of a leading Japanese white rice variety (Koshihikari); which has eating quality superior to that of the widely cultivated black rice variety "Okunomurasaki" (Maeda et al, 2014).…”

Section: Conserving and Utilizing Pigmented Rice Landraces For Futurementioning

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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Section: Conserving and Utilizing Pigmented Rice Landraces For Futurementioning

confidence: 99%

The Genetic Basis and Nutritional Benefits of Pigmented Rice Grain

et al. 2020

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“…Fragment lengths (allele size) were estimated and scored with the GeneMapper version 4.0 software. Fragment size of the variants in the BC 2 F 7 generation was determined following the procedure used by Bhuiyan et al (2011) with the graphical genotyping GGT 2.0 software (van Berloo, 2008). The variants that showed the size of both alleles to be similar to the recurrent parent (MR219) were scored as A and similar to the donor parent (O. rufipogon) as B.…”

Section: Marker Analysismentioning

confidence: 99%

Identification of introgressed alien chromosome segments associated with grain quality in Oryza rufipogon x MR219 advanced breeding lines using SSR markers

Fasahat

Muhammad

Abdullah³

et al. 2012

Genet. Mol. Res.

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ABSTRACT. A limited backcross procedure was utilized to introgress genes associated with grain quality traits from Oryza rufipogon (Accession No. IRGC 105491), a wild rice from Malaysia, to the cultivated rice O. sativa cv. MR219, a popular high yielding Malaysian rice cultivar. A set of 10 BC 2 F 7 progenies were selected based on the field performance and phenotypic appearance in BC 2 F 5 and BC 2 F 6 generations, which initially started with 266 progenies in the BC 2 F 2 generation. These 10 advanced breeding lines are similar to each other but differ in several important grain quality traits, which can be traced to O. rufipogon introgressions. Phenotyping and genotyping of BC 2 F 7 variants were considered for QTL analysis. The introgressed lines did not show any significant changes compared to the recurrent parent MR219 for the traits grain density and milled rice percentage. All 10 progenies showed significantly higher head rice percentages (70-88%) than the recurrent parent ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 11 (3): 3534-3546 (2012) Introgression segments in advanced breeding lines 3535 MR219. Variants G13 and G15 had higher amylose contents than MR219. All variants were analyzed using polymorphic SSR markers. Of the 34 SSR markers, only 18 showed introgression from O. rufipogon for chromosomes 1, 2, 3, 5, 6, 8, 10, and 11. Graphical genotypes were prepared for each variant, and association between the introgression regions and the traits that increased grain quality was visualized. Based on marker trait association, some of the QTLs are stable across environments and genetic backgrounds and could be used universally.

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“…This study confirmed the low GI characteristic of UKMRC9, as the mean GI values derived from current and previous studies [ 15 ] were similar (46 vs. 51). However, despite originating from the same gene pool [ 13 ] and having similar amylose content, we found that both UKMRC10 and UKMRC11 did not exhibit low GI properties compared to UKMRC9. Wang [ 29 ] was the first to attribute the Waxy gene as the regulator of amylose synthesis in rice and Fitzgerald et al [ 7 ] proposed that this gene was associated with GI variations in 235 rice samples.…”

Section: Discussionmentioning

confidence: 88%

“…According to a Distinctiveness, Uniformity and Stability test for evaluating New Plant Variety status (Protection of New Plant Varieties Act 2004), UKMRC9 and UKMRC10 were different but UKMRC9 and UKMRC11 were similar for 58 morphological and physiological traits [ 12 ]. Experimental field trials and physicochemical analyses have confirmed the superiority of these red rice variants in yield potential, resistance against blast disease and antioxidant properties compared to MR219 [ 13 , 14 ]. Karupaiah et al [ 15 ] previously experimented with UKMRC9 and found it had low glycaemic and insulinogenic properties, but these favorable traits were lost upon polishing.…”

Section: Introductionmentioning

confidence: 99%

Evaluating Crossbred Red Rice Variants for Postprandial Glucometabolic Responses: A Comparison with Commercial Varieties

et al. 2016

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Consumption of white rice predisposes some Asian populations to increased risk of type 2 diabetes. We compared the postprandial glucometabolic responses to three newly-developed crossbred red rice variants (UKMRC9, UKMRC10, UKMRC11) against three selected commercial rice types (Thai red, Basmati white, Jasmine white) using 50-g carbohydrate equivalents provided to 12 normoglycaemic adults in a crossover design. Venous blood was drawn fasted and postprandially for three hours. Glycaemic (GI) and insulin (II) indices, incremental areas-under-the-curves for glucose and insulin (IAUCins), indices of insulin sensitivity and secretion, lactate and peptide hormones (motilin, neuropeptide-Y, orexin-A) were analyzed. The lowest to highest trends for GI and II were similar i.e., UKMRC9 < Basmati < Thai red < UKMRC10 < UKMRC11 < Jasmine. Postprandial insulinaemia and IAUCins of only UKMRC9 were significantly the lowest compared to Jasmine. Crude protein and fiber content correlated negatively with the GI values of the test rice. Although peptide hormones were not associated with GI and II characteristics of test rice, early and late phases of prandial neuropeptide-Y changes were negatively correlated with postprandial insulinaemia. This study indicated that only UKMRC9 among the new rice crossbreeds could serve as an alternative cereal option to improve diet quality of Asians with its lowest glycaemic and insulinaemic burden.

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Transgressive variants for red pericarp grain with high yield potential derived from Oryza rufipogon×Oryza sativa: Field evaluation, screening for blast disease, QTL validation and background marker analysis for agronomic traits

Cited by 9 publications

References 34 publications

The Genetic Basis and Nutritional Benefits of Pigmented Rice Grain

The Genetic Basis and Nutritional Benefits of Pigmented Rice Grain

Identification of introgressed alien chromosome segments associated with grain quality in Oryza rufipogon x MR219 advanced breeding lines using SSR markers

Evaluating Crossbred Red Rice Variants for Postprandial Glucometabolic Responses: A Comparison with Commercial Varieties

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