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Reference Detail
| Reference | ||
|---|---|---|
| Author | Kim S.R., Torollo G., Yoon M.R., Kwak J., Lee C.K., Prahalada G.D., Choi I.R., Yeo U.S., Jeong O.Y., Jena K.K., Lee J.S. | |
| Title | Loss-of-Function Alleles of <i>Heading date 1</i> (<i>Hd1</i>) Are Associated With Adaptation of Temperate <i>Japonica</i> Rice Plants to the Tropical Region. | |
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Abstract: Adaptation of temperate <i>japonica</i> rice varieties to tropical regions is impeded by extremely early flowering probably due to photoperiod change from long to short. However, constant breeding efforts led to development of temperate <i>japonica</i> varieties adapted to tropical/subtropical regions, but the genetic factor underlying this is still elusive. We analyzed the 45 diverse rice accessions and 12 tropical-adapted temperate <i>japonica</i> lines for the allele types of seven major flowering genes <i>Hd1, OsPPR37, DTH8, Ghd7, Ehd1, RFT1</i>, and <i>Hd3a</i> and flowering time under three different field conditions in temperate and tropical locations. The accessions originated from the tropical/subtropical regions preferred the non-functional alleles of <i>Hd1</i> and not other flowering genes. The genetic effect analysis of each gene showed that only the functional <i>Hd1</i> caused early flowering in the tropical location. All 12 temperate <i>japonica</i> breeding lines adapted to the tropics possessed the loss-of-function alleles of <i>Hd1</i> with no change of other flowering genes compared to common Korean temperate <i>japonica</i> varieties. A phylogenetic analysis using 2,918 SNP data points revealed that the genome status of the 12 breeding lines were very similar to Korean temperate <i>japonica</i> varieties. These results indicate that the functional <i>Hd1</i> alleles of temperate <i>japonica</i> varieties induced extremely early flowering in the tropics and the non-functional <i>Hd1</i> alleles brought about the adaptation of temperate <i>japonica</i> rice to tropical regions. |
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| Journal | Front Plant Sci | |
| Country | the Philippines | |
| Volume | 9 | |
| Pages | 1827 | |
| Year | 2018 | |
| PubMed ID | 30619400 | |
| PubMed Central ID | 6295564 | |
| DOI | 10.3389/fpls.2018.01827 | |
| URL | - | |
| Relation | ||
| Gene | EF1 GHD7 HD2 HD3A HD5 MADS51 RFT1 SE1 | |
| 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 | - | |
