2015
DOI: 10.1186/s12284-015-0053-6
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Mapping Consistent Rice (Oryza sativa L.) Yield QTLs under Drought Stress in Target Rainfed Environments

Abstract: BackgroundDrought stress is a major limitation to rainfed rice production and yield stability. Identifying yield-associated quantitative trait loci (QTLs) that are consistent under drought stress predominant in target production environments, as well as across different genetic backgrounds, will help to develop high-yielding rice cultivars suitable for water-limited environments through marker-assisted breeding (MAB). Considerable progress has been made in mapping QTLs for drought resistance traits in rice; ho… Show more

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Cited by 84 publications
(74 citation statements)
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“…Under normal irrigation, water remains 2 to 10 cm above the soil surface. Since the water distribution of north-east of China is uneven, so we set drought-stressed treatments as natural rain-fed conditions to simulate natural drought stress in the actual production process (Gu, Yin, Zhang, Wang, & Struik, 2014;Prince, Beena, Gomez, Senthivel, & Babu, 2015). We stopped irrigation after the tillering stage until harvest and replenished the water when the soil water potential was below À50 kPa to save the plants from being exposed to very severe stress that leads to death in reproductive stage (Kumar, Venuprasad, & Atlin, 2007).…”
Section: Evaluation Of Cold Tolerance and Drought Tolerancementioning
confidence: 99%
“…Under normal irrigation, water remains 2 to 10 cm above the soil surface. Since the water distribution of north-east of China is uneven, so we set drought-stressed treatments as natural rain-fed conditions to simulate natural drought stress in the actual production process (Gu, Yin, Zhang, Wang, & Struik, 2014;Prince, Beena, Gomez, Senthivel, & Babu, 2015). We stopped irrigation after the tillering stage until harvest and replenished the water when the soil water potential was below À50 kPa to save the plants from being exposed to very severe stress that leads to death in reproductive stage (Kumar, Venuprasad, & Atlin, 2007).…”
Section: Evaluation Of Cold Tolerance and Drought Tolerancementioning
confidence: 99%
“…However, further investigations are needed to verify the potential of these QTLs in a broad range of contrasting water conditions. Identifying QTLs related to plant-development with consistency across different environments as well as different genetic backgrounds will help in developing high-yielding crop varieties (Prince et al, 2015). Maccaferri et al (2008) also emphasized the consistency of a QTL across a broad range of environmental conditions, and that the coincidence of QTLs across environments is critical to breed crops for wide adaptation and yield stability (Cattivelliet al, 2008).…”
Section: Markers Associated With Drought Tolerance Indices Of the Phementioning
confidence: 99%
“…As per findings of [21], 5 QTLs were detected for leaf rolling trait out of which one QTL was in chromosome 9 at a distance of 65.6cM. Also in another experiment conducted under drought stress condition, phenotypic variation of 24.8% detected for the leaf rolling QTL on chromosome 6 [27]. Under drought stress situation, chromosome 12 contains another QTL for leaf rolling trait near RM101.…”
Section: Discussionmentioning
confidence: 64%
“…The responses to drought in the vegetative stage and reproductive stage are much different [15]. Several experiments have been reported previously for morpho-physiological responses under reproductive stage drought stress [1627].…”
Section: Introductionmentioning
confidence: 99%