Comparison and analysis of QTLs for grain and hull thickness related traits in two recombinant inbred line (RIL) populations in rice (Oryza sativa L.)
文献类型：期刊论文
| 作者 | Yao Xiaoyun; Wang Jiayu; Liu Jin; Wang Wei; Yang Shenglong; Zhang Yu; Xu Zhengjin |
| 刊名 | JOURNAL OF INTEGRATIVE AGRICULTURE
 |
| 出版日期 | 2016 |
| 卷号 | 15期号:11页码:2437-2450 |
| ISSN号 | 2095-3119 |
| 关键词 | NEAR-ISOGENIC LINES GENETIC DISSECTION NATURAL VARIATION RARE ALLELE SEED LENGTH MAJOR QTL WEIGHT YIELD SHAPE SIZE paddy rice brown rice hull thickness genetic backgrounds QTL mapping rice (Oryza sativa L.) |
| 其他题名 | Comparison and analysis of QTLs for grain and hull thickness related traits in two recombinant inbred line (RIL) populations in rice (Oryza sativa L.) |
| 英文摘要 | Grain traits are major constraints in rice production, which are key factors in determining grain yield and market values. This study used two recombinant inbred line (RIL) populations, RIL-JJ (japonica/japonica) and RIL-IJ (indica/japonica) derived from the two crosses Shennong 265/Lijiangxintuanheigu (SN265/LTH) and Shennong 265/Luhui 99 (SN265/LH99). Sixty-eight quantitative trait loci (QTLs) associated with 10 grain traits were consistently detected on the 12 chromosomes across different populations and two environments. Although 61.75% of the QTLs clustered together across two populations, only 16.17% could be detected across two populations. Eight major QTLs were detected on the 9, 10 and 12 chromosomes in RIL-JJ under two environments, a novel QTL clustered on the 10 chromosome, qGT10, qBT10 and qTGW10, have a higher percentage of explained phenotypic variation (PVE) and additive effect; 15 major QTLs were detected on the 5, 8, 9, and 11 chromosomes in RIL-IJ under two environments, a novel clustered QTL, qGT8 and qTGW8, on the 8 chromosome have a higher additive effect. Finally, the analysis of major QTL-BSA mapping narrowed the qTGW10 to a 1.47-Mb region flanked by simple sequence repeat markers RM467 and RM6368 on chromosome 10. A comparison of QTLs for grain traits in two different genetic backgrounds recombinant inbred line populations confirmed that genetic background had a significant impact on grain traits. The identified QTLs were stable across different populations and various environments, and 29.42% of QTLs controlling grain traits were reliably detected in different environments. Fewer QTLs were detected for brown rice traits than for paddy rice traits, 7 and 17 QTLs for brown rice out of 25 and 43 QTLs under RIL-JJ and RIL-IJ populations, respectively. The identification of genes constituting the QTLs will help to further our understanding of the molecular mechanisms underlying grain shape. |
| 资助项目 | [National Natural Science Foundation of China] ; [Program for Liaoning Excellent Talents in University, China] |
| 语种 | 英语 |
| CSCD记录号 | CSCD:5862337 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/150813]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Yao Xiaoyun,Wang Jiayu,Liu Jin,et al. Comparison and analysis of QTLs for grain and hull thickness related traits in two recombinant inbred line (RIL) populations in rice (Oryza sativa L.)[J]. JOURNAL OF INTEGRATIVE AGRICULTURE,2016,15(11):2437-2450. |
| APA | Yao Xiaoyun.,Wang Jiayu.,Liu Jin.,Wang Wei.,Yang Shenglong.,...&Xu Zhengjin.(2016).Comparison and analysis of QTLs for grain and hull thickness related traits in two recombinant inbred line (RIL) populations in rice (Oryza sativa L.).JOURNAL OF INTEGRATIVE AGRICULTURE,15(11),2437-2450. |
| MLA | Yao Xiaoyun,et al."Comparison and analysis of QTLs for grain and hull thickness related traits in two recombinant inbred line (RIL) populations in rice (Oryza sativa L.)".JOURNAL OF INTEGRATIVE AGRICULTURE 15.11(2016):2437-2450. |
入库方式： OAI收割
来源：金属研究所
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