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南京农业大学农学院《New Phytologist》发表植物环境适应分子遗传研究课题组“A major gene for chilling tolerance variation in Indica rice codes for a kinase OsCTK1 that phosphorylates multiple substrates under cold”（图）
植物环境 分子遗传
2024/4/29
水稻起源于热带和亚热带，对低温十分敏感，当温度低于15℃时水稻便无法正常生长。有统计显示，每年低温冷害导致我国水稻减产约50亿kg。近年来，因直播稻大面积推广以及水稻种植区域不断由热带、亚热带向高海拔、高纬度地区扩张，水稻遭受低温冷害的频率有增加趋势。低温冷害已成为限制我国水稻生产的一大瓶颈。因此，挖掘调控水稻耐冷性的关键基因，研究其作用机理，对防控水稻低温冷害具有重要意义。
OsNRAMP2 facilitates Cd efflux from vacuoles and contributes to the difference in grain Cd accumulation between japonica and indica rice
Rice (Oryza sativa L.) Cadmium OsNRAMP2 Haplotype
2023/4/21
Cadmium (Cd) accumulation in rice grain is of health concern. Identifying genes involved in grain Cd accumulation and performing molecular breeding may reduce it. In this study, knockout of OsNRAMP2, ...
Global Transcriptome and Co-Expression Network Analysis Reveal Contrasting Response of Japonica and Indica Rice Cultivar to γ Radiation
gamma irradiation gene network morphology rice (Oryza sativa L.) transcriptomic analysis
2023/8/9
Japonica and indica are two important subspecies in cultivated Asian rice. Irradiation is a classical approach to induce mutations and create novel germplasm. However, little is known about the differ...
The qSAC3 locus from indica rice effectively increases amylose content under a variety of conditions
Amylose content Chromosome segment substitution lines Environmental effect Quantitative trait loci Rice quality
2023/8/9
Amylose content (AC) is a critical factor for the quality of rice. It is determined by the biosynthesis gene Waxy (Wx) and a variety of quantitative trait loci (QTLs). Although many QTLs have been rep...
The effect of different antibiotics on the elimination of Agrobacterium and high frequency Agrobacterium-mediated transformation of indica rice (Oryza sativa L.)
Agrobacterium-mediated transformation Agrobacterium elimination gus reporter gene hygromycin phosphotransferase selectable marker gene (hpt) rice
2014/2/25
We report here the suitable explant with high efficiency of transformation and the positive effects of timentin over other antibiotics like carbenicillin and cefotaxime on the elimination of Agrobacte...
Varietal Difference in Leaf Senescence during Ripening Period of Advanced Indica Rice
Indica rice Leaf senescence Nitrogen Oryza sativa L.
2009/8/6
The study has been carried out to evaluate varietal difference in leaf senescence during the ripening period in relation to sink size and nitrogen application. Leaf senescence was early in the medium...
Characteristics for the Efficiency of Spikelet Production and the Ripening in High-Yielding Japonica-Incdica Hybrid and Semidwarf Indica Rice Varieties
Efficiency of spikelet production High-yielding ability Japonica-indica hybrid rice Japonica rice Percentage of ripened grains
2009/8/6
Three high-yielding japonica-indica hybrid (JIH) and semidwarf indica (SDI) rice varieties, and ten japonica (J) rice varieties, including different plant types, were cultivated under sparse (30×30 cm...
Effect of Panicle Size on Grain Yield of IRRI-Released Indica Rice Cultivars in the Wet Season
Grain yield Panicle size Solar radiation Rice Wet season
2009/7/29
Grain yield under wet season (WS) conditions has gradually received more attention due to looming scarcity of irrigation water, which limits the area for planting to flooded lowland rice in the dry se...
The Effect of the Amount of Nitrogen Fertilizer on Starch Metabolism in Leaf Sheath of Japonica and Indica Rice Varieties during the Heading Period
ADP-glucose pyrophosphorylase Debranching enzyme Indica rice Japonica rice Leaf sheath Nitrogen fertilizer Starch Starch branching enzyme
2009/7/24
The effects of the amount of nitrogen fertilizer on the starch metabolism of rice leaf sheath during the heading period in the japonica rice variety, cv. Nipponbare were compared with those in the ind...
Estimation of Cool Tolerance at the Booting and Flowering Stages in Indica Rice Varieties
Indica Flowering stage Rice Varietal difference Cold tolerance Booting stage
2009/7/7
We estimated cool tolerance in high yielding varieties bred in Hokuriku National Agricultural Experiment Station and their ancestral varieties, including indica varieties, for screening materials to...
Caryopsis Development and Main Quality Characteristics in Different indica Rice Varieties
indica rice caryopsis development quality traits amyloplasts chalkiness
2009/1/7
A comparison on the caryopsis development, rice quality characteristics and the size, shape, structure of the endosperm amyloplasts (starch granules) between two indica rice varieties was made. The ma...
Lowering Grain Amylose Content in Backcross Offsprings of indica Rice Variety 057 by Molecular Marker-Assisted Selection
molecular marker-assisted selection indica rice amylose content grain quality
2009/1/7
To lower the amylose content (AC) of the indica rice restorer line 057 with high AC, backcrosses were made respectively by using four indica varieties (R367, 91499, Yanhui 559, Hui 527) as low AC don...
Optimizing tissue culture media for efficient transformation of different indica rice genotypes
indica rice regeneration transformation GUS
2010/1/14
An efficient system was established for high frequency embryogenesis and regeneration of indica rice, Oryza sativa L. cv. MDU 5. Basic media, carbohydrate sources and concentrations, agar concentratio...