Construction of chromosome segment substitution lines of Dongxiang common wild rice (Oryza rufipogon Griff.) in the background of the japonica rice cultivar Nipponbare (Oryza sativa L.)

Ma, Xiaoding; Han, Bing; Tang, Jinyu; Zhang, Jiani; Cui, Di; Geng, Leiyue; Zhou, Huiying; Li, Maomao; Han, Longzhi

doi:10.1016/j.plaphy.2019.09.041

Cited by 16 publications

(14 citation statements)

References 39 publications

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“…Approximately 90% of rice production and consumption is reported in Asia [2]. By 2050, the production of rice should rise by 60%-70% to meet the requirements of the predicted population growth in Asia [3]. Rice can be cultivated in many regions of the world because of its resourcefulness and diversity.…”

Section: Introductionmentioning

confidence: 99%

Arsenic Uptake and Accumulation Mechanisms in Rice Species

Abedi

Mojiri

2020

Plants

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Rice consumption is a source of arsenic (As) exposure, which poses serious health risks. In this study, the accumulation of As in rice was studied. Research shows that As accumulation in rice in Taiwan and Bangladesh is higher than that in other countries. In addition, the critical factors influencing the uptake of As into rice crops are defined. Furthermore, determining the feasibility of using effective ways to reduce the accumulation of As in rice was studied. AsV and AsIII are transported to the root through phosphate transporters and nodulin 26-like intrinsic channels. The silicic acid transporter may have a vital role in the entry of methylated As, dimethylarsinic acid (DMA) and monomethylarsonic acid (MMA), into the root. Amongst As species, DMA(V) is particularly mobile in plants and can easily transfer from root to shoot. The OsPTR7 gene has a key role in moving DMA in the xylem or phloem. Soil properties can affect the uptake of As by plants. An increase in organic matter and in the concentrations of sulphur, iron, and manganese reduces the uptake of As by plants. Amongst the agronomic strategies in diminishing the uptake and accumulation of As in rice, using microalgae and bacteria is the most efficient.

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Section: Introductionmentioning

confidence: 99%

Arsenic Uptake and Accumulation Mechanisms in Rice Species

Abedi

Mojiri

2020

Plants

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“…Since QTL detection is based on the natural allelic differences between parental cultivars, it is important to select parental cultivars that show large phenotypic variation in the target traits [ 49 ]. There is rich polymorphism between Guangxi wild rice DP30 ( O. rufipogon Griff.)…”

Section: Discussionmentioning

confidence: 99%

“…Ma et al (2019) detected eighteen QTLs were two known grain length- and width-related genes and four novel QTLs. In addition, two QTLs were verified, and two novel QTLs were identified, for panicle neck length, a domestication-related trait [ 49 ]. Tan et al (2004) identified quantitative trait loci (QTLs) associated with plant height and the days to heading in the BC 3 F 2 population.…”

Section: Discussionmentioning

confidence: 99%

“…These plants confirmed that qCT2.1 is located in a 1.7 Mb region between molecular markers dxw-4 and dxw-9 (Figure 7B) and that the LOD value of qCT2.1 was 8 (Figure 7C). Since QTL detection is based on the natural allelic differences between parental cultivars, it is important to select parental cultivars that show large phenotypic variation in the target traits [49]. There is rich polymorphism between Guangxi wild rice DP30 (O. rufipogon Griff.)…”

Section: Construction Of a Secondary Population And Mapping Of Qct21mentioning

confidence: 99%

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Development of Chromosome Segment Substitution Lines (CSSLs) Derived from Guangxi Wild Rice (Oryza rufipogon Griff.) under Rice (Oryza sativa L.) Background and the Identification of QTLs for Plant Architecture, Agronomic Traits and Cold Tolerance

Yuan

Zhao

Usman

et al. 2020

Genes

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Common wild rice contains valuable resources of novel alleles for rice improvement. It is well known that genetic populations provide the basis for a wide range of genetic and genomic studies. In particular, chromosome segment substitution lines (CSSLs) ais a powerful tool for fine mapping of quantitative traits, new gene discovery and marker-assisted breeding. In this study, 132 CSSLs were developed from a cultivated rice (Oryza sativa) cultivar (93-11) and common wild rice (Oryza rufipogon Griff. DP30) by selfing-crossing, backcrossing and marker-assisted selection (MAS). Based on the high-throughput sequencing of the 93-11 and DP30, 285 pairs of Insertion-deletions (InDel) markers were selected with an average distance of 1.23 Mb. The length of this DP30-CSSLs library was 536.4 cM. The coverage rate of substitution lines cumulatively overlapping the whole genome of DP30 was about 91.55%. DP30-CSSLs were used to analyze the variation for 17 traits leading to the detection of 36 quantitative trait loci (QTLs) with significant phenotypic effects. A cold-tolerant line (RZ) was selected to construct a secondary mapping F2 population, which revealed that qCT2.1 is in the 1.7 Mb region of chromosome 2. These CSSLs may, therefore, provide powerful tools for genome wide large-scale gene discovery in wild rice. This research will also facilitate fine mapping and cloning of QTLs and genome-wide study of wild rice. Moreover, these CSSLs will provide a foundation for rice variety improvement.

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“…Three accessions of O. nivara IRGC80507, IRGC101508, and ONIVA01G39120 (IRGC100897) have SUB1A‐1 allele and were highly tolerant of submergence (Dos Santos et al., 2017). This species has also been explored for finding QTLs related to Cadmium tolerance (Ma, et al., 2019b).…”

Section: Introductionmentioning

confidence: 99%

Deployment of wild relatives for genetic improvement in rice (Oryza sativa)

et al. 2020

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Rice is one of the most important crops in the world. The wild species of rice are expected to have novel beneficial alleles that have been lost from cultivated rice during the process of domestication. Therefore, wild species could be the potential source to induce lost genetic diversity in cultivated rice. Serving as an important reservoir of novel genes/QTLs, wild species, in general, are better adapted to different ecologies and can tolerate many biotic and abiotic stresses. Despite that, only a few wild species are studied and extensive characterization both at the molecular and morphological level is yet to be achieved. Several agronomically important genes/QTLs for improving biotic and abiotic stresses, resistance, productivity and grain quality traits were identified from AA genome donor wild species and were tagged with breeder friendly molecular markers for their transfer to elite genetic backgrounds. The present review provides information on the important wild rice species harbouring genes/QTLs for agriculturally important traits and their successful utilization in rice breeding programmes.

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Construction of chromosome segment substitution lines of Dongxiang common wild rice (Oryza rufipogon Griff.) in the background of the japonica rice cultivar Nipponbare (Oryza sativa L.)

Cited by 16 publications

References 39 publications

Arsenic Uptake and Accumulation Mechanisms in Rice Species

Arsenic Uptake and Accumulation Mechanisms in Rice Species

Development of Chromosome Segment Substitution Lines (CSSLs) Derived from Guangxi Wild Rice (Oryza rufipogon Griff.) under Rice (Oryza sativa L.) Background and the Identification of QTLs for Plant Architecture, Agronomic Traits and Cold Tolerance

Deployment of wild relatives for genetic improvement in rice (Oryza sativa)

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