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Reference Detail
| Reference | ||
|---|---|---|
| Author | Liu X., Deng X., Kong W., Sun T., Li Y. | |
| Title | The Pyramiding of Elite Allelic Genes Related to grain number Increases grain number per Panicle Using the Recombinant Lines Derived from <i>Indica-japonica</i> Cross in Rice. | |
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Abstract: <i>Indica</i>(<i>xian</i>)-<i>japonica</i>(<i>geng</i>) hybrid rice has many heterosis traits that can improve rice yield. However, the traditional hybrid technology will struggle to meet future needs for the development of higher-yield rice. Available genomics resources can be used to efficiently understand the gene-trait association trait for rice breeding. Based on the previously constructed high-density genetic map of 272 high-generation recombinant inbred lines (RILs) originating from the cross of Luohui 9 (<i>indica</i>, as female) and RPY geng (<i>japonica</i>, as male) and high-quality genomes of parents, here, we further explore the genetic basis for an important complex trait: possible causes of grain number per panicle (GNPP). A total of 20 genes related to grains number per panicle (GNPP) with the differences of protein amino acid between LH9 and RPY were used to analyze genotype combinations, and PCA results showed a combination of <i>PLY1, LAX1, DTH8</i> and <i>OSH1</i> from the RPY geng with <i>PYL4, SP1, DST</i> and <i>GNP1</i> from Luohui 9 increases GNPP. In addition, we also found that the combination of <i>LAX1-T2</i> and <i>GNP1-T3</i> had the most significant increase in GNPP. Notably, Molecular Breeding Knowledgebase (MBK) showed a few aggregated rice cultivars, <i>LAX1-T2</i> and <i>GNP1-T3</i>, which may be a result of the natural geographic isolation between the two gene haplotypes. Therefore, we speculate that the pyramiding of <i>japonica</i>-type <i>LAX-T2</i> with <i>indica</i>-type <i>GNP1-T3</i> via hybridization can significantly improve rice yield by increasing GNPP. |
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| Journal | Int J Mol Sci | |
| Country | China | |
| Volume | 24(2) | |
| Pages | ||
| Year | 2023 | |
| PubMed ID | 36675168 | |
| PubMed Central ID | 9865901 | |
| DOI | 10.3390/ijms24021653 | |
| URL | - | |
| Relation | ||
| Gene | DST GNP1 HD5 LAX1 OSH1 PYL/RCAR1 PYL/RCAR4 SP1 | |
| INSD | - | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
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Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
