{"title":"Breeding beyond trade-offs","authors":"Yufang Guo","doi":"10.1038/s43016-025-01181-4","DOIUrl":null,"url":null,"abstract":"","PeriodicalId":94151,"journal":{"name":"Nature food","volume":"6 5","pages":"423-423"},"PeriodicalIF":21.9000,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nature food","FirstCategoryId":"1085","ListUrlMain":"https://www.nature.com/articles/s43016-025-01181-4","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"FOOD SCIENCE & TECHNOLOGY","Score":null,"Total":0}
引用次数: 0
超越权衡的繁殖
在最近的一项研究中,中国华中农业大学的李一波及其同事发现了一个主要的水稻基因座QT12,该基因座编码Sec61易位β亚基,并在调节籽粒品质的耐热性中起关键作用。他们证明,QT12在热胁迫下对谷物质量稳定性产生负面影响,特别是通过促进谷物垩白,这是质量恶化的一个关键指标,会降低大米的营养价值、烹饪性能和市场吸引力。该研究进一步揭示了QT12的表达受一个涉及核因子Y (NF-Y)复合物的自然开关基因调控,该开关调节QT12在温度升高时的表达。高温破坏NF-Y相互作用,激活开关系统,增加QT12的表达,导致稻米品质恶化和耐热性降低。大规模田间试验表明,低表达或无功能QT12可以在不影响其他农艺性状的情况下同时提高优良品种的产量和品质,为气候适应型水稻育种提供了一种有前景的策略。
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