Cytoplasm's Role in Rice Grain Weight and Filled-Grain Ratio
Author Information
Author(s): Tao Dayun, Xu Peng, Zhou Jiawu, Deng Xianneng, Li Jing, Deng Wei, Yang Jiangyi, Yang Guifeng, Li Qiong, Hu Fengyi
Primary Institution: Food Crops Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, China
Hypothesis
How does cytoplasm affect grain weight and filled-grain ratio in indica rice?
Conclusion
Cytoplasmic variation significantly affects grain weight and filled-grain ratio in indica rice, but the effects vary by nuclear background and location.
Supporting Evidence
- Cytoplasmic effects were significant for grain weight across locations.
- The interaction between cytoplasm and nuclear background significantly affected filled-grain ratio.
- Cytoplasmic variation represents an unexplored genetic resource for rice breeding.
Takeaway
The type of cytoplasm in rice plants can change how heavy the grains are and how many grains are filled, which is important for growing rice.
Methodology
The study used 18 nuclear substitution lines of indica rice, evaluating traits across two locations and analyzing variance for cytoplasmic effects.
Limitations
The effects of cytoplasm on filled-grain ratio were only significant in certain nuclear backgrounds and locations.
Statistical Information
P-Value
< 0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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