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Review
. 2022 Mar 15;23(6):3169.
doi: 10.3390/ijms23063169.

Grain Size Associated Genes and the Molecular Regulatory Mechanism in Rice

Hongzhen Jiang  1 , Anpeng Zhang  2 , Xintong Liu  1 , Jingguang Chen  1
Affiliations
Review

Grain Size Associated Genes and the Molecular Regulatory Mechanism in Rice

Hongzhen Jiang et al. Int J Mol Sci. .

Abstract

Grain size is a quantitative trait that is controlled by multiple genes. It is not only a yield trait, but also an important appearance quality of rice. In addition, grain size is easy to be selected in evolution, which is also a significant trait for studying rice evolution. In recent years, many quantitative trait loci (QTL)/genes for rice grain size were isolated by map-based cloning or genome-wide association studies, which revealed the genetic and molecular mechanism of grain size regulation in part. Here, we summarized the QTL/genes cloned for grain size and the regulation mechanism with a view to provide the theoretical basis for improving rice yield and breeding superior varieties.

Keywords: QTLs; genes; grain length; grain size; grain width; rice.

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Conflict of interest statement

The authors declare that they have no conflict of interest.

Figures

Figure 1
Figure 1
The QTLs isolated for grain size in rice.
Figure 2
Figure 2
The grain size control in rice.
See this image and copyright information in PMC

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