QTL Analysis of Genetic Tolerance to Iron Toxicity in Rice (Oryza Sativa L.) by Quantification of Bronzing Score
QTL Analysis of Genetic Tolerance to Iron Toxicity in Rice (Oryza Sativa L.) by Quantification of Bronzing Score
复制标题
DOI：
10.1080/15228860903064989
复制
发表时间：
2009-07-01
期刊：
影响因子：
--
通讯作者：
Shimizu, Akifumi
中科院分区：
文献类型：
--
作者：
Shimizu, Akifumi
对水稻进行了铁毒性耐受性 QTL 分析。古铜色分数被视为对铁毒性的敏感性指标，通过扫描仪将其转换为数字数据，并使用色度坐标量化为参数数据。基于量化评分 QTL，使用来自粳稻品种“Gimbozu”（耐受）和籼稻品种“Kasalath”（易感）杂交的 F-3 品系进行了青铜色耐受性分析。通过复合区间作图检测到2号染色体上RM221标记附近的单个QTL，通过多重区间作图检测到另外5个QTL。这些QTL解释了99%的总表型变异，它们将被用来开发耐受品种。
A QTL analysis for iron-toxicity tolerance was conducted in rice. Bronzing scores, which are regarded as an index of sensitivity to iron toxicity, were converted to digital data via a scanner and quantified to Parametric data using chromaticity coordinates. On the basis of quantified score, QTL, analysis for bronzing tolerance was conducted using F-3 lines from a cross between a japonica cultivar 'Gimbozu' (tolerant) and an indica cultivar 'Kasalath' (susceptible). A single QTL near RM221 marker on chromosome 2 was detected by composite interval mapping and additional five QTL were detected by multiple interval mapping. These QTL explained 99% of the total phenotypic variance and they will be used to develop tolerant varieties.