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2025年5月10日 星期六
农业生物技术学报  2021, Vol. 29 Issue (5): 825-835    DOI: 10.3969/j.issn.1674-7968.2021.05.001
  研究论文与报告 本期目录 | 过刊浏览 | 高级检索 |
玉米快速叶绿素荧光参数QTL定位
卢峰, 李露露, 陈婉莹, 李贝, 姚苏怡, 孙玉, 刘欢欢, 印志同*
扬州大学 植物功能基因组学教育部重点实验室/江苏省粮食作物现代产业技术协同创新中心/教育部农业与农产品安全国际合作联合实验室/江苏省作物基因组学和分子育种重点实验室,扬州 225009
QTL Mapping for Fast Chlorophyll Fluorescence Parameters in Maize (Zea mays)
LU Feng, LI Lu-Lu, CHEN Wan-Ying, LI Bei, YAO Su-Yi, SUN Yu, LIU Huan-Huan, YIN Zhi-Tong*
Key Laboratory of Plant Functional Genomics, Ministry of Education/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops/Joint International Research Laboratory of Agriculture & Agri-Product Safety of MOE/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou 225009, China
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摘要 作物的光合作用与产量密切相关。快速叶绿素荧光参数可以灵敏地反映光合作用中的电子传递效率,解析快速叶绿素荧光参数的遗传基础对培育高光效玉米(Zea mays)品种具有指导意义。本研究以玉米杂交种'先玉335'连续自交7代衍生的160个重组自交系(recombinant inbred line, RIL)为材料,构建高密度遗传图谱,并在4个大田种植条件下测量5个快速叶绿素荧光参数ABS/CSo、TRo/CSo、ETo/CSo、ETo/TRo和PIcs。利用20K芯片构建总长为1 896.423 cM的高密度遗传图谱,包含2 915个bin标记,标记间平均距离为0.66 cM。结合多环境快速叶绿素荧光参数的最佳线性无偏预测值(best linear unbiased predictor, BLUP),共检测到15个相关QTLs,似然函数比值对数值(logarithm of odds, LOD)为2.52~7.35,表型变异贡献率为4.56%~14.81%;其中qREC2-1、qREC3-1、qRET3-1在多环境中稳定表达。本研究为进一步精细定位快速叶绿素荧光参数QTLs和利用分子标记辅助选择开展高光效育种提供参考依据。
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卢峰
李露露
陈婉莹
李贝
姚苏怡
孙玉
刘欢欢
印志同
关键词 玉米快速叶绿素荧光参数遗传图谱QTL定位    
Abstract:Photosynthesis is closely related to crop yield. Fast chlorophyll fluorescence parameters can sensitively reflect the electron transport rate in photosynthesis. Studying the genetic basis of fast chlorophyll fluorescence parameters can help in breeding maize (Zea mays) hybrid with high photosynthetic efficiency. In this study, 160 recombinant inbred lines (RILs) derived from maize hybrid 'Xianyu335' by continuous self-crossing for 7 generations were used to construct a high-density genetic map and map QTLs for fast chlorophyll fluorescence parameters. For this purpose, 5 parameters including ABS/CSo, TRo/CSo, ETo/CSo, ETo/TRo, PIcs were measured in the RILs grown under 4 field conditions. A high-density SNP genetic map with a total length of 1 896.423 cM was constructed by SNP molecular markers originated from 20K molecular chips. The genetic map contained 2 915 markers, and the average distance between markers was 0.66 cM. A total of 15 related QTLs were identified using the best linear unbiased predictor (BLUP) of fast chlorophyll fluorescence parameters in multiple environments. The logarithm of odds (LOD) value were 2.52~7.35 and the explicable phenotypic variation were 4.56%~14.81%. Three of these QTLs were stably expressed in multiple environments, namely qREC3-1, qRPI2-1, and qRPI3-2. This study could provide a reference for further fine mapping of QTLs of rapid chlorophyll fluorescence parameters and molecular marker-assisted selection for high photosynthetic efficiency breeding.
Key wordsMaize    Fast chlorophyll fluorescence parameter    Genetic map    QTL mapping
收稿日期: 2020-10-19      出版日期: 2021-05-01
ZTFLH:  S513  
基金资助:国家自然科学基金(31972965); 江苏省农业自主创新项目(CX(18)1001); 江苏省作物学优势学科
通讯作者: *ztyin@yzu.edu.cn   
引用本文:   
卢峰, 李露露, 陈婉莹, 李贝, 姚苏怡, 孙玉, 刘欢欢, 印志同. 玉米快速叶绿素荧光参数QTL定位[J]. 农业生物技术学报, 2021, 29(5): 825-835.
LU Feng, LI Lu-Lu, CHEN Wan-Ying, LI Bei, YAO Su-Yi, SUN Yu, LIU Huan-Huan, YIN Zhi-Tong. QTL Mapping for Fast Chlorophyll Fluorescence Parameters in Maize (Zea mays). 农业生物技术学报, 2021, 29(5): 825-835.
链接本文:  
http://journal05.magtech.org.cn/Jwk_ny/CN/10.3969/j.issn.1674-7968.2021.05.001     或     http://journal05.magtech.org.cn/Jwk_ny/CN/Y2021/V29/I5/825
 
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