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Breeders' main goal is to increase the proportion of high-quality rice produced overall. To create effective rice breeding strategies, possible yield-related loci have been mined. many researchers are using transgenic strategies as cutting-edge methods to increase rice productivity. Quantitative trait loci (QTLs) play a pivotal role in governing grain yield in Oryza sativa L., commonly known as rice. The genes contributing to QTLs that determine grain size, length, and weight have been successfully identified. Numerous genes are upregulated to enhance the overall yield of rice. Recent advancements have led to the discovery of genes and QTLs specifically associated with rice yield. Through an in-depth analysis of various yield characteristics, including grain weight, thousand grain weight, grain length, grain width, grain yield per plant, grain number per panicle, and panicles per plant, we conducted a comprehensive review using extensive literature research and public domain databases. Additionally, we explored the progress made in transgenic technology and advanced genomic techniques. The compiled information on genes and QTLs related to yield enhancement aims to provide a valuable resource. The integrated analysis of existing data on genes and/or QTLs provide evidence on potential combinations for creating superior genotypes that combine high yield across multiple traits. Integration of molecular markers, transgenic techniques and conventional breeding as discussed in this extensive review opens up the prospect of developing high yielding rice varieties
JAVED et al. (Wed,) studied this question.
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