Breeding for Biofortification Traits in Rice: Means to Eradicate Hidden Hunger

Sharma, Vinay; Saini, Dinesh Kumar; Kumar, Ashish; Kesh, Hari; Kaushik, Prashant

doi:10.5772/intechopen.91144

Cited by 10 publications

(6 citation statements)

References 58 publications

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“…Moreover, nutrient biofortification of rice by this method has been proved as a sustainable strategy to overcome mineral deficiencies ( Majumder, Datta & Datta, 2019 ). Mineral accumulation in grain being a complex process and highly influenced by environmental factors has made breeding and early-generation phenotypic-based selections of biofortified rice varieties slow and less effective ( Sharma et al, 2020 ). However, mapping major-effect QTLs by understanding genetics of grain mineral elements at the molecular level would be helpful for the rapid development of nutrient biofortification of rice varieties using marker-assisted breeding (MAB) ( Swamy et al, 2018 ).…”

Section: Pigmentation In Ricementioning

confidence: 99%

Explicating genetic architecture governing nutritional quality in pigmented rice

Sudan,

Urwat,

Farooq

et al. 2023

PeerJ

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Rice is one of the most important staple plant foods that provide a major source of calories and nutrients for tackling the global hunger index especially in developing countries. In terms of nutritional profile, pigmented rice grains are favoured for their nutritional and health benefits. The pigmented rice varieties are rich sources of flavonoids, anthocyanin and proanthocyanidin that can be readily incorporated into diets to help address various lifestyle diseases. However, the cultivation of pigmented rice is limited due to low productivity and unfavourable cooking qualities. With the advances in genome sequencing, molecular breeding, gene expression analysis and multi-omics approaches, various attempts have been made to explore the genetic architecture of rice grain pigmentation. In this review, we have compiled the current state of knowledge of the genetic architecture and nutritional value of pigmentation in rice based upon the available experimental evidence. Future research areas that can help to deepen our understanding and help in harnessing the economic and health benefits of pigmented rice are also explored.

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Section: Pigmentation In Ricementioning

confidence: 99%

Explicating genetic architecture governing nutritional quality in pigmented rice

Sudan,

Urwat,

Farooq

et al. 2023

PeerJ

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“…As a prelude to bio-forti cation, it is important to identify genomic regions controlling nutritional quality traits through advanced mapping approaches (Patra et al 2020; Chattopadhyay et al 2019a). However, few QTL controlling Fe, Zn and protein content in brown and milled rice have been reported on all 12 rice chromosomes (Sharma et al, 2020). Among these, a putative amino acid polymerase gene OsAAP6 inside QTL in chromosome 1 qPC1.1 (Peng et al 2014) and putative gene for glutelin OsGluA2 inside QTL on chromosome 10 (qGPC10) (Yang et al, 2019) were cloned.…”

Section: Introductionmentioning

confidence: 99%

Mapping genetic determinants for grain physicochemical and nutritional traits in brown and pigmented rice using genome-wide association analysis

et al. 2023

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Public awareness is gradually growing in favour of consuming nutritionally superior brown and pigmented rice. But unpolished rice is relatively poor in eating and cooking quality. Understanding inheritance pattern of nutritional and quality traits is prerequisite for further improvement exercising molecular tools. A holistic approach was adopted to identify unique and common genomic regions regulating 17 grain nutritional as well as physiochemical traits using a diverse panel of 96 rice genotypes. Seventy eight signi cant marker-trait association distributed in all chromosomes with PVE ranging from 4-27% were detected. Marker RM 467 was colocalized with previously identi ed QTL qPC10.1 and gene OsGluA2. Grain protein and metal content were associated with cooking quality which was also supported by the marker-trait association. Two QTLs for each of grain protein and amylose content with associated markers RM 17600 and RM 1272 were found co-localized with additive effect in opposite direction. Similarly, RM 162 was associated with both zinc content and gelatinization temperature (alkali spreading value). Iron content was also associated with grain size which was supported by the association of RM8050 with the both Fe content and kernel length/breadth ratio. Phenotypically pigmented rice was detected with low amylose content and one genetic loci for anthocyanin (qANTH5.1) was also found to be co-localized with a QTL for AC (qAC5.1) with additive effect in opposite direction. Co-localized associated loci for nutritional and cooking and eating quality can guide strategic biofoti cation programs for improving rice for nutritional traits without distracting consumer preference.

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“…The global population comprises over 7 billion people, and the global population clock is recording continuous growth (Borem et al 2014). Rice is the second most important crop in the world, feeding more than one half of the world population (Sharma et al 2020). Above 90% of rice is consumed by Asians.…”

Section: Introductionmentioning

confidence: 99%

Characterization and Heterotic Grouping of Traditional Assam rice (Oryza sativaL.)

Kumar

Sarma

Hazarika

2021

Preprint

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Parents of heterotic hybrids are derived from different heterotic groups with high genetic divergence. Classification of traditional Assam rice germplasm in divergent pools will be advantageous to maximize the heterosis and thereby to ensure food security. In the present investigation, a group of 60 upland rice genotypes were characterized using 53 polymorphic simple sequence repeats (SSR) markers out of 83 molecular markers. The genetic divergence study using unweighted Neighbour-joining (UNJ) method clustered the 60 genotypes into 3 major clusters. The eleven most divergent genotypes identified were crossed in half diallel fashion to determine the mid-parent and better-parent heterosis values for the objective of heterotic grouping. No correlation between heterosis and genetic distance can be attributable to the use of a subset of markers not linked to yield or concerned. In genetic distance based heterotic grouping, the intra-group hybrids were recorded a higher frequency of crosses, grain yield per plant, specific combining ability effect, mid parent heterosis, better parent heterosis and standard parent heterosis value than those of inter-group hybrids. Overall, sn extensive choice of parents with attractive traits constellation leading to increased yield of the hybrids for much better complementation must be stressed along with a substantial hereditary distance for augmentation of yield heterosis.

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Breeding for Biofortification Traits in Rice: Means to Eradicate Hidden Hunger

Cited by 10 publications

References 58 publications

Explicating genetic architecture governing nutritional quality in pigmented rice

Explicating genetic architecture governing nutritional quality in pigmented rice

Mapping genetic determinants for grain physicochemical and nutritional traits in brown and pigmented rice using genome-wide association analysis

Characterization and Heterotic Grouping of Traditional Assam rice (Oryza sativaL.)

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