Chinese Journal OF Rice Science ›› 2024, Vol. 38 ›› Issue (5): 535-543.DOI: 10.16819/j.1001-7216.2024.231004

• Research Papers • Previous Articles     Next Articles

Analysis of Nitrogen-response Related Loci in japonica Rice Varieties from Jiangsu Province

TANG Weijie1,2, CHEN Haiyuan1,2, ZHANG Suobing1,2, TANG Jun1,2, LIN Jing1,2, FANG Xianwen1,2, ZHANG Shunan4, XIAO Ning5, WU Yunyu5, LI Aihong5, ZHANG Yunhui1,2,3,*()   

  1. 1Jiangsu Provincial Key Laboratory of Agrobiology/Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
    2Zhongshan Biological Breeding Laboratory, Nanjing 210014, China
    3Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
    4National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing 210095, China
    5Institute of Agricultural Sciences for Lixiahe Region in Jiangsu Province, Yangzhou 225009, China
  • Received:2023-10-09 Revised:2023-11-14 Online:2024-09-10 Published:2024-09-10
  • Contact: *email: zyhrice@163.com

江苏粳稻育成品种氮响应相关性状位点分析

唐伟杰1,2, 陈海元1,2, 张所兵1,2, 唐骏1,2, 林静1,2, 方先文1,2, 张抒南4, 肖宁5, 吴云雨5, 李爱宏5, 张云辉1,2,3,*()   

  1. 1江苏省农业生物学重点实验室/江苏省农业科学院 种质资源与生物技术研究所, 南京 210014
    2生物育种钟山实验室, 南京 210014
    3江苏省粮食作物现代生产技术协同创新中心, 江苏 扬州 225009
    4南京农业大学 作物遗传与种质创新利用全国重点实验室, 南京 210095
    5江苏里下河地区农业科学研究所, 江苏 扬州 225009
  • 通讯作者: *email: zyhrice@163.com
  • 基金资助:
    国家自然科学基金青年科学基金项目(32302672);江苏省自然科学基金青年基金项目(BK20210153);江苏省自然科学基金青年基金项目(BK20210388);江苏省自然科学基金青年基金项目(3140);江苏省种业创新揭榜挂帅项目(JBGS【2021】012);生物育种钟山实验室项目(BM2022008-03)

Abstract:

Objective】In order to identify nitrogen-response related traits and genes, the study was carried out in Jiangsu Province, a region with a long history of rice breeding and a wide range of germplasm sources, screening nitrogen efficient lines, and finally reducing the amount of nitrogen fertilizer.【Method】We used 76 japonica rice varieties bred in 1983-2014 from different regions of Jiangsu Province as experimental materials. We investigated nitrogen-response related traits at the maturity stage at three nitrogen fertilizer levels, as well as the nitrogen-response related loci. The GATK4 and Admixture software were used for population variations calling and population structure analysis.【Result】 We selected nitrogen insensitive varieties such as Huajing 5 and Ningjing 5. By using association analysis, we identified neighboring loci of known or reported nitrogen related genes (OsAMT1.2, OsNRT2.4 and Fd-GOGAT1, etc.); Further analysis focused on the favorable variation of these loci and the varieties carrying advantageous loci. 【Conclusion】 This study identified the differences in nitrogen response and excellent loci carried by japonica rice varieties in Jiangsu Province. The findings provide both genetic materials and superior loci for breeding nitrogen responsive varieties.

Key words: nitrogen-response, variety selection, superior site

摘要:

目的】江苏省是水稻氮肥施用量较高的区域,且水稻品种选育历史悠久,种质来源广泛;为了鉴定江苏水稻品种的氮响应相关性状以及氮响应相关基因,筛选氮高效品系,最终降低氮肥用量。【方法】利用76份不同地区、不同选育时间育成的江苏粳稻品种为试验材料,利用GATK4等软件获取群体变异信息,并用Admixture软件分析群体结构,以三个不同氮肥处理水平,调查成熟期氮响应相关性状并分析氮响应相关位点。【结果】筛选到了华粳5号和宁粳5号等氮钝感品种;利用关联分析,发现了已知或已报道的氮相关基因(OsAMT1.2OsNRT2.4Fd-GOGAT1等)邻近位点;进一步分析了位点的优异变异和携带优异位点的品种。【结论】鉴定了江苏育成粳稻品种的氮响应差异和携带的优异位点,可为选育不同氮响应品种提供参考。

关键词: 氮响应, 品种筛选, 优异位点