【摘 要】
：
The panicle architecture and grain size of rice affect not only grain yield but also grain quality, especially grain appearance. The erect-panicle (EP) trait co
【机 构】
：
Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Plant Functional Ge
论文部分内容阅读
The panicle architecture and grain size of rice affect not only grain yield but also grain quality, especially grain appearance. The erect-panicle (EP) trait controlled by the qpe9-1/dep1 allele has been widely used in high-yielding japonica rice breeding, but usually accompanied with moderate appearance of milled rice. The null gs9 allele shows a good potential for improving grain shape and appearance. However, GS9 and qPE9-1/DEP1 loci are tightly linked, and their interaction is unclear, which obviously restricts their utilization in modern rice breeding. In the present study, comparative analyses of protein and mRNA levels revealed that GS9 and qPE9-1 function independently. Three near-isogenic lines (NILs) carrying various allelic combinations of these two loci, NIL (gs9/qpe9-1), NIL (GS9/qPE9-1) and NIL (gs9/qPE9-1), in the EP japonica cultivar 2661 (GS9/qpe9-1) background were developed for genetic interaction analysis. GS9 and qPE9-1 had additive effects on determining grain size, and the null gs9 allele could decrease grain chalkiness and improve grain appearance without affecting plant and panicle architecture in EP japonica cultivars. Additionally, introgression lines (ILs) developed in another released EP japonica cultivar Wuyujing 27 (WYJ27) background showed the same additive effect and the feasibility of utilizing the gs9 allele to improve grain appearance quality in high-yielding EP cultivars. This study provides an effective strategy for rice breeders to improve rice grain appearance in EP japonica and related cultivars.
其他文献
中国水产品质量安全可追溯技术与系统因建设标准不统一、追溯数据易被篡改等问题,影响了追溯体系的应用和推广。为有效发挥追溯技术在保障水产品质量安全中的作用,本研究阐述了中国水产品质量安全可追溯技术与实践现状,分析了区块链应用于水产品追溯的技术可行性,并基于区块链技术分布式存储、去中心化和不可篡改性等特点,设计了水产品质量安全追溯方案架构,阐述了水产品在养殖、加工、流通、消费和监管等环节质量信息全程记录和追溯管理的实现途径,以期为构建基于区块链的水产品质量安全追溯技术与实践提供支持。随着国家工业互联网的建设和水
Anthocyanins are important components in the peel of red pears and contribute to the appearance of the fruit.Melatonin application is known to affect anthocyanin biosynthesis,but the effect of preharvest melatonin application on fruit coloration remains l
中国对于水产品的需求量日益增加,由于水生生物具有很强的重金属富集能力,因此水生生物的重金属富集及人群有关的相关风险评价日益受到人们的关注。本研究对目前国内外相关学者的研究进行总结与分析,讨论了水生生物的重金属污染研究现状、富集及暴露评价等内容,强调了建立地区性的水生生物重金属富集与暴露风险评价的重要性。本研究可为后续水生经济生物对人体健康的风险评价和生态环境保护等方面的相关研究提供更为细致的理论支持,也可为消费者提供更完善的风险评估结果和消费建议。
WTO/TBT-SPS国家咨询中心农业农村部联系点《关于请对韩国有关食品标准与规范拟定修改案的通报提交官方评议意见的函》(农业农村部联系点函〔2021〕19号)收悉.该通报( G/SPS/
Argonaute (AGO) proteins are the core of the RNA-induced gene silencing complex which regulate a wide variety of processes in plants, from organ development to
水产品作为与畜禽肉类具有同等食物地位的动物性食物,具有高蛋白、低脂肪和低热量的特征,在居民食物结构中发挥着重要作用。为研究水产品对动物性食物蛋白质总量的贡献水平,本研究对中国动物性水产品可食率和蛋白质贡献量进行了测算,并与畜禽肉类、蛋奶类等动物性蛋白质贡献量进行比较分析,测算得出水产品整体及各品类水产品的平均可食率、平均蛋白质含量和蛋白质贡献率等相关指标。水产品平均可食率为54.30%,其中,海水产品平均可食率为51.86%,淡水产品平均可食率为56.67%。每100 g水产品可食部的蛋白质含量为16.8
Blast disease caused by the fungus Magnaporthe grisea results in significant yield losses of cereal crops across the world. To date, very few regulatory genes c
Hexokinase (HXK) is the first irreversible catalytic enzyme in the glycolytic pathway, which not only provides energy for plant growth and development but also
In an attempt to identify solutions to the effects of erratic rainfall patterns and droughts that limit agricultural production growth, the Rwandan government h
[目的]建立碱提甘蔗皮多糖的优化工艺,进一步探究其结构特征,并评价其对α-葡萄糖苷酶的抑制作用.[方法]采用单因素试验和响应面分析法(RSM)对碱提甘蔗皮多糖(SPAP)提取工艺