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Rice heterosis: quantitatively characterized and optimized hybrid breeding

We re-sequenced and phenotyped 2,839 rice hybrid cultivars and 9,839 F2 individuals from elite hybrids. Based on the dataset, the genetic improvement during rice hybrid breeding was investigated, and the genetic basis underlying strong heterosis was quantitatively evaluated. Furthermore, a genomic selection model was constructed to optimize heterotic combinations.

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Fig. 1: Quantitative analysis of heterotic loci and validation of genomic selection model.


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This is a summary of: Gu, Z. et al. Structure and function of rice hybrid genomes reveal genetic basis and optimal performance of heterosis. Nat. Genet. (2023).

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Rice heterosis: quantitatively characterized and optimized hybrid breeding. Nat Genet (2023).

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