Genetic Diversity of Hydro Priming Effects on Rice Seed Emergence and Subsequent Growth under Different Moisture Conditions.
Genetic Diversity of Hydro Priming Effects on Rice Seed Emergence and Subsequent Growth under Different Moisture Conditions.
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DOI：
10.3390/genes11090994
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发表时间：
2020-08-25
期刊：
影响因子：
3.5
通讯作者：
Sakagami JI
中科院分区：
文献类型：
--
作者：
Nakao Y;Sone C;Sakagami JI
种子引发是指刺激种子代谢的种子增强方法。本研究以27个不同基因型水稻品种为材料，在干湿交替的土壤水分条件下，分析了水引发效应的遗传多样性。这些基因型包括21个栽培稻基因型、5个光壳稻基因型和1个非洲新稻基因型。在四种土壤水分条件（5%、10%、15%和20%（w/w））下，将经处理的水稻种子播种在塑料盒中。根据生长参数，采用层次聚类分析将基因型分为6组。此外，出苗特性进行了调查，通过使用主成分分析的基础上，对照和引发种子的平均出苗时间。种子引发增强生长性能的适度干燥条件下的10%和15%的土壤水分。同时，在土壤含水量为5%和20%的水分胁迫条件下，引发效率较低。在20%土壤水分条件下，引发效应存在较大的基因型差异。我们的研究结果表明，厌氧耐受基因型往往表现出引发效率在高土壤水分条件下。此外，一组包括所有的高地基因型。该类群最初适应10%和15%的干旱条件，种子引发大大改善了它们的特征。
Seed priming refers to seed enhancement methods that stimulate seed metabolism. This study evaluated the genetic diversity of hydro priming efficacy in 27 different genotypes of rice under dry to wet soil moisture conditions. The genotypes included 21 genotypes of Oryza sativa, five genotypes of Oryza glaberrima, and one genotype of NERICA (New Rice for Africa). The treated rice seeds were sown in plastic boxes under four soil moisture conditions (5%, 10%, 15%, and 20% (w/w)). The genotypes were categorized into six groups based on growth parameters using hierarchical cluster analysis. Furthermore, emergence properties were investigated by using principal component analysis based on the mean emergence time of control and primed seeds. Seed priming enhanced growth performance under the moderate dry conditions of 10% and 15% soil moisture. Meanwhile, priming efficacy was low in water stress conditions of 5% and 20% soil moisture. There were wide-ranging genotypic differences of priming efficacy under 20% soil moisture condition. Our findings indicate that the anaerobic-tolerant genotypes tend to exhibit priming efficacy under high soil moisture conditions. Furthermore, one group included all upland genotypes of Oryza sativa. This group originally adapted to 10% and 15% of dry conditions, and seed priming improved their features greatly.
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影响因子：
5.2
作者：
Katsura, Keisuke;Tsujimoto, Yasuhiro;Sakagami, Jun-Ichi
通讯作者：
Sakagami, Jun-Ichi
影响因子：
1.6
作者：
Ranal, Marli A.;Santana, Denise Garcia de
通讯作者：
Santana, Denise Garcia de
影响因子：
4.2
作者：
Farooq, Muhammad;Barsa, Shahzad M. A.;Wahid, Abdul
通讯作者：
Wahid, Abdul
影响因子：
2.2
作者：
Farooq, Muhammad;Wahid, Abdul;Asad, Saeed A.
通讯作者：
Asad, Saeed A.
影响因子：
--
作者：
Andoh, H;Kobata, T
通讯作者：
Kobata, T