Molecular Breeding of Zheyou810, an <i>Indica–Japonica</i> Hybrid Rice Variety with Superior Quality and High Yield
Rice heterosis has played a significant role in improving rice yields in China since the 1970s. The utilization of heterosis between the <i>indica</i> and <i>japonica</i> subspecies of rice is especially important in this regard. However, inter-subspecies hybridization betwee...
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MDPI AG
2023-09-01
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| Series: | Agriculture |
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| author | Jian Song Yongtao Cui Honghuan Fan Liqun Tang Jianjun Wang |
| author_facet | Jian Song Yongtao Cui Honghuan Fan Liqun Tang Jianjun Wang |
| author_sort | Jian Song |
| collection | DOAJ |
| description | Rice heterosis has played a significant role in improving rice yields in China since the 1970s. The utilization of heterosis between the <i>indica</i> and <i>japonica</i> subspecies of rice is especially important in this regard. However, inter-subspecies hybridization between <i>indica</i> and <i>japonica</i> rice is hampered by the inadequate seed-setting rate and inferior rice quality of hybrid offspring, which has limited its development. The discovery and cloning of wide-compatibility gene <i>S5-n</i> and the granular starch synthase gene <i>Wx</i> have provided a solution to this problem, paving the way for the breeding of inter-subspecies hybrid rice. Here we demonstrated the breeding process of Zheyou810 and its performances in regional trials. Employing marker-assisted selection through the utilization of KASP (Kompetitive Allele-Specific PCR), a high-yielding and superior-quality <i>indica–japonica</i> hybrid rice variety named Zheyou810 was developed. Zheyou810 achieved an average yield of 10,737.75 kg/ha (12.58% higher than control Jiayou5) in the national regional trials across 2019 and 2020, and 11,777.25 kg/ha (13.36% higher than Jiayou5) in the production trial in 2020, respectively. The quality of rice has also been improved, reaching the standards set by the Ministry of Agriculture of the People’s Republic of China for Grade 3 premium rice (NY/T593). In 2021, Zheyou810 was approved by the national examination showing broad application prospects. |
| first_indexed | 2024-03-10T23:08:34Z |
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| id | doaj.art-75e212e9a4654e33aa775e2ba869a0de |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-03-10T23:08:34Z |
| publishDate | 2023-09-01 |
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| series | Agriculture |
| spelling | doaj.art-75e212e9a4654e33aa775e2ba869a0de2023-11-19T09:07:34ZengMDPI AGAgriculture2077-04722023-09-01139180710.3390/agriculture13091807Molecular Breeding of Zheyou810, an <i>Indica–Japonica</i> Hybrid Rice Variety with Superior Quality and High YieldJian Song0Yongtao Cui1Honghuan Fan2Liqun Tang3Jianjun Wang4Zhejiang Academy of Agricultural Sciences, Hangzhou 310022, ChinaZhejiang Academy of Agricultural Sciences, Hangzhou 310022, ChinaZhejiang Academy of Agricultural Sciences, Hangzhou 310022, ChinaZhejiang Academy of Agricultural Sciences, Hangzhou 310022, ChinaZhejiang Academy of Agricultural Sciences, Hangzhou 310022, ChinaRice heterosis has played a significant role in improving rice yields in China since the 1970s. The utilization of heterosis between the <i>indica</i> and <i>japonica</i> subspecies of rice is especially important in this regard. However, inter-subspecies hybridization between <i>indica</i> and <i>japonica</i> rice is hampered by the inadequate seed-setting rate and inferior rice quality of hybrid offspring, which has limited its development. The discovery and cloning of wide-compatibility gene <i>S5-n</i> and the granular starch synthase gene <i>Wx</i> have provided a solution to this problem, paving the way for the breeding of inter-subspecies hybrid rice. Here we demonstrated the breeding process of Zheyou810 and its performances in regional trials. Employing marker-assisted selection through the utilization of KASP (Kompetitive Allele-Specific PCR), a high-yielding and superior-quality <i>indica–japonica</i> hybrid rice variety named Zheyou810 was developed. Zheyou810 achieved an average yield of 10,737.75 kg/ha (12.58% higher than control Jiayou5) in the national regional trials across 2019 and 2020, and 11,777.25 kg/ha (13.36% higher than Jiayou5) in the production trial in 2020, respectively. The quality of rice has also been improved, reaching the standards set by the Ministry of Agriculture of the People’s Republic of China for Grade 3 premium rice (NY/T593). In 2021, Zheyou810 was approved by the national examination showing broad application prospects.https://www.mdpi.com/2077-0472/13/9/1807<i>indica–japonica</i> hybrid ricequalityyieldmarker-assisted selectionmolecular breedingKASP marker |
| spellingShingle | Jian Song Yongtao Cui Honghuan Fan Liqun Tang Jianjun Wang Molecular Breeding of Zheyou810, an <i>Indica–Japonica</i> Hybrid Rice Variety with Superior Quality and High Yield Agriculture <i>indica–japonica</i> hybrid rice quality yield marker-assisted selection molecular breeding KASP marker |
| title | Molecular Breeding of Zheyou810, an <i>Indica–Japonica</i> Hybrid Rice Variety with Superior Quality and High Yield |
| title_full | Molecular Breeding of Zheyou810, an <i>Indica–Japonica</i> Hybrid Rice Variety with Superior Quality and High Yield |
| title_fullStr | Molecular Breeding of Zheyou810, an <i>Indica–Japonica</i> Hybrid Rice Variety with Superior Quality and High Yield |
| title_full_unstemmed | Molecular Breeding of Zheyou810, an <i>Indica–Japonica</i> Hybrid Rice Variety with Superior Quality and High Yield |
| title_short | Molecular Breeding of Zheyou810, an <i>Indica–Japonica</i> Hybrid Rice Variety with Superior Quality and High Yield |
| title_sort | molecular breeding of zheyou810 an i indica japonica i hybrid rice variety with superior quality and high yield |
| topic | <i>indica–japonica</i> hybrid rice quality yield marker-assisted selection molecular breeding KASP marker |
| url | https://www.mdpi.com/2077-0472/13/9/1807 |
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