Metabolic prediction of important agronomic traits in hybrid rice (Oryza sativa L.)

Scientific Reports
Zhiwu DanWenchao Huang

Abstract

Hybrid crops have contributed greatly to improvements in global food and fodder production over the past several decades. Nevertheless, the growing population and changing climate have produced food crises and energy shortages. Breeding new elite hybrid varieties is currently an urgent task, but present breeding procedures are time-consuming and labour-intensive. In this study, parental metabolic information was utilized to predict three polygenic traits in hybrid rice. A complete diallel cross population consisting of eighteen rice inbred lines was constructed, and the hybrids' plant height, heading date and grain yield per plant were predicted using 525 metabolites. Metabolic prediction models were built using the partial least square regression method, with predictive abilities ranging from 0.858 to 0.977 for the hybrid phenotypes, relative heterosis, and specific combining ability. Only slight changes in predictive ability were observed between hybrid populations, and nearly no changes were detected between reciprocal hybrids. The outcomes of prediction of the three highly polygenic traits demonstrated that metabolic prediction was an accurate (high predictive abilities) and efficient (unaffected by population genetic struc...Continue Reading

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Citations

Jan 26, 2017·The Plant Journal : for Cell and Molecular Biology·Francisco de Abreu E LimaZoran Nikoloski
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Dec 15, 2019·Life Science Alliance·Zhiwu DanWenchao Huang
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Feb 2, 2021·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Dominic KnochThomas Altmann

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Methods Mentioned

BETA
PCA

Software Mentioned

Excel
SPSS
SPSS Statistics
Chroma TOF

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