Mapping QTLs Associated with Root Traits Related to Drought Resistance in Vietnamese Upland Rice

Thành, Nguyễn Đức; Liên, Nguyễn Thị Kim; Chung, Pham Quang; Trong, Tran Quoc; Thủy, Lê Thị Bích; Nguyen, Henry T.

doi:10.3125/asean.v23i4.992

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…Further, QTL for several root traits overlapped with QTL for grain yield under stress in these RI lines, indicating the pleiotropic effects of root trait QTL on rice performance under stress. Thanh et al, (2006) mapped QTLs for root traits (maximum root length, root thickness, root weight to shoot and deep root weight to shoot ratios) using AFLP and SSR markers in upland rice using a recombinant inbred (RI) population derived from a cross between Vietnamese upland rice accessions. The QTL on chromosome 12 flanked by SSR marker RM270 and AFLP marker AVM28.17 and QTL on chromosome 2 flanked by markers AVM43.1-RM250were identified for maximum root length explaining phenotypic variance of 7.2 and 8.5 per cent respectively.…”

Section: Qtl For Yield and Its Component Traits For Zinc Deficiency Tolerance In Ricementioning

confidence: 99%

A Review on Molecular Marker Analysis for Yield and its Component Traits under Water Stress and Zinc Deficiency Tolerance in Rice

Vanitha¹,

Amudha²,

Mahendran³

et al. 2019

Int.J.Curr.Microbiol.App.Sci

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Section: Qtl For Yield and Its Component Traits For Zinc Deficiency Tolerance In Ricementioning

confidence: 99%

A Review on Molecular Marker Analysis for Yield and its Component Traits under Water Stress and Zinc Deficiency Tolerance in Rice

Vanitha¹,

Amudha²,

Mahendran³

et al. 2019

Int.J.Curr.Microbiol.App.Sci

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“…Drought resistance is a multifaceted feature that is regulated by four main physiological mechanisms: escape, avoidance, tolerance, and recovery [10]. The characteristics of drought tolerance might be morphological, physiological, or yield-related.…”

Section: Introductionmentioning

confidence: 99%

Biochemical, Anatomical, Genetic, and Yield Assessment of Seven Rice Genotypes (Oryza sativa L.) Subjected to Drought Stress

Abo-Youssef,

Elbagory,

Elsehely

et al. 2023

Agronomy

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Drought stress is one of the main environmental challenges that dramatically reduce global rice production within several agricultural ecosystems. Breeding drought-tolerant rice genotypes is an important sustainable strategy to overcome this constraint. In this work, drought tolerance levels were assessed according to biochemical, anatomical, and molecular aspects, which led to selecting three promising crosses (Sakha 107 × Sakha super 300, Sakha 107 × M206, and Sakha 107 × Sakha 108) that were compared with their parents as controls. The antioxidant capabilities of the chosen potential crosses, such as the ascorbate peroxidase activity (APX), superoxide dismutase activity (SOD), catalase activity (CAT), and total phenolics, were significantly higher compared with their parents under drought stress. Moreover, the promising selected crosses could accumulate greater proline and chlorophyll contents. The potential superiority of the three selected rice crosses was anatomically represented throughout cross-sections of roots, stems, and leaves, which recorded higher values of cross-section diameter, epidermal thickness, cortex thickness, mesophyll thickness, and bundle sheath thickness as well as a broader range of xylem vessel diameters than their parents under a water deficit. The observed superiority of the antioxidant activities in the overall drought-tolerance mechanisms and anatomical characteristics reflected their protective role in the adaptation process under water stress. Molecular analyses using inter-simple sequence repeat (ISSR) markers suggested two promising crosses (Sakha 107 × Sakha super 300 and Sakha 107 × M206) to be the most suitable crosses for saving water. They had the highest similarity values and were grouped in a distinct cluster. The relative gene expression of OsACS2, OsCML31, OsCYP94C2a, and OsSRO1c was significantly elevated in the two selected drought-tolerant rice genotypes (Sakha 107 × Sakha super 300 and Sakha 107 × M206).

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20. Application of induced mutation and molecular markers for development of drought tolerance in rice

Thành¹

2014

Mutagenesis: Exploring Novel Genes and Pathways

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Mapping QTLs Associated with Root Traits Related to Drought Resistance in Vietnamese Upland Rice

Cited by 3 publications

References 14 publications

A Review on Molecular Marker Analysis for Yield and its Component Traits under Water Stress and Zinc Deficiency Tolerance in Rice

A Review on Molecular Marker Analysis for Yield and its Component Traits under Water Stress and Zinc Deficiency Tolerance in Rice

Biochemical, Anatomical, Genetic, and Yield Assessment of Seven Rice Genotypes (Oryza sativa L.) Subjected to Drought Stress

20. Application of induced mutation and molecular markers for development of drought tolerance in rice

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