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利用粳型红香黏品种红香1号与早熟长粒优质粳稻品系松98-131杂交后代F2∶3家系群140个株系,探讨了水稻子粒锰(Mn)、铁(Fe)、锌(Zn)和铜(Cu)含量的遗传变异和相关关系;并对子粒Mn、Fe、Zn和Cu含量进行了QTL定位分析。结果表明,子粒Mn、Fe、Zn、Cu 4种矿质元素含量均呈现接近正态的连续分布;除Mn与Fe含量相关不显著外,其他元素间含量都呈显著或极显著正相关。构建了含78个SSR标记的遗传连锁图谱,共检测到与水稻子粒Mn、Fe、Zn、Cu 4种矿质元素含量相关的11个QTL,分别位于第2、3、4、5、7、9和12染色体上。其中与Mn含量相关的QTL 2个;与Fe含量相关的QTL 2个;与Zn含量相关的QTL 4个;与Cu含量相关的QTL 3个。
In this study, 140 lines of F2: 3 pedigree were crossed with HongXiang 1, a japonica red sweet-smelling variety, and an early-maturing long grain high-quality japonica rice line Matsuyama 98-131. The effects of Mn, Fe, Zn and Cu contents. The QTLs for Mn, Fe, Zn and Cu contents were analyzed. The results showed that the contents of mineral elements such as Mn, Fe, Zn and Cu in grains all showed a nearly normal distribution. Except Mn and Fe content, the content of other elements showed a significant or extremely significant positive correlation. A total of 11 QTLs related to mineral elements such as Mn, Fe, Zn and Cu in rice grains were detected with 78 SSR markers, which were located at the 2nd, 3rd, 4th, 5th, 7th and 9th And 12 on the chromosome. Among them, there were 2 QTLs related to Mn content, 2 QTLs related to Fe content, 4 QTLs related to Zn content, and 3 QTLs related to Cu content.