Molecular Marker-Assisted Breeding of High-Quality and Salt-Tolerant Hybrid Japonica Rice Combination Shenyanyou 1
文献类型： 外文期刊
作者： Niu, Fuan 1 ; Zhang, Anpeng 1 ; Cheng, Can 1 ; Chu, Huangwei 1 ; Fang, Jun 1 ; Zhou, Jihua 1 ; Sun, Bin 1 ; Dai, Yuting 1 ; Zhang, Jianming 1 ; Feng, Zhizun 1 ; Cao, Liming 1 ;
作者机构： 1.Shanghai Acad Agr Sci, Minist Agr & Rural Affairs, Crop Breeding & Cultivat Res Inst, Key Lab Germplasm Innovat & Genet Improvement Grai, Shanghai 201403, Peoples R China
关键词： hybrid japonica rice; Shenyanyou 1; salt tolerance; high-quality; molecular marker-assisted breeding
期刊名称：AGRONOMY-BASEL （ 影响因子：3.4； 五年影响因子：3.8 ）
ISSN：
年卷期： 2025 年 15 卷 8 期
页码：
收录情况： SCI
摘要： The development of a new salt-alkaline-tolerant hybrid japonica rice is crucial for enhancing japonica rice supply and ensuring national food security. Utilizing molecular marker-assisted selection (MAS) technology combining Kompetitive Allele-Specific PCR (KASP) markers and a gene breeding chip, the salt-tolerant gene SKC1 was introgressed into a rice genotype Fan 14. This led to the development of Shenyanhui 1, a new high-quality, strongly heterotic, and salt-tolerant japonica restorer line. Subsequently, the high-quality, salt-tolerant japonica three-line hybrid rice variety Shenyanyou 1 was developed by crossing the BT-type japonica cytoplasmic male sterile (CMS) line Shen 21A with the restorer line Shenyanhui 1. Shenyanyou 1 carries the major salt tolerance gene SKC1, exhibiting excellent salt tolerance with seedling stage salt tolerance reaching level 5. Under precise salt tolerance evaluation throughout its growth cycle, Shenyanyou 1 achieved a yield of 3640.5 kg/hm2, representing an extremely significant increase of 20.7% over the control variety Yandao 21. Shenyanyou 1 exhibits superior grain quality, meeting the Grade 3 high-quality rice standards issued by the Ministry of Agriculture. Shenyanyou 1 has good comprehensive resistance, aggregating rice blast resistance genes such as Pi2, Pita, Pizt and LHCB5, bacterial blight resistance genes Xa26/Xa3, stripe blast resistance gene STV11, semi-dwarf gene Sdt97, nitrogen-efficient utilization gene NRT1.1B, the light repair activity enhancement gene qUVR-10, the cold resistance gene qLTG3-1, and the iron tolerance gene OsFRO1. It has good resistance to biotic and abiotic stresses. This paper details the breeding process, key agronomic traits, salt tolerance, yield performance, and grain quality characteristics of Shenyanyou 1.
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