Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 23, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/ijms23063169
Keywords
grain size; grain width; grain length; QTLs; genes; rice
Funding
- National Natural Science Foundation of China [31902103]
- Shenzhen Science and Technology Projects [JCYJ20210324124409027]
- Fundamental Research Funds for the Central Universities
- Sun Yat-sen University
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Grain size is an important trait in rice, controlled by multiple genes. Recent studies have identified several genes/QTL related to grain size through cloning and association analysis, revealing the regulation mechanism. These findings provide theoretical basis for improving rice yield and breeding superior varieties.
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.
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