您好，欢迎访问云南省农业科学院 机构知识库！

NILs of Cold Tolerant Japonica Cultivar Exhibited New QTLs for Mineral Elements in Rice

文献类型： 外文期刊

作者： Ali, Muhammad Kazim 1 ; Sun, Zheng-Hai 3 ; Yang, Xiao-Meng 1 ; Pu, Xiao-Ying 1 ; Duan, Cheng-Li 4 ; Li, Xia 1 ; Wang, Lu-Xiang 5 ; Yang, Jia-Zhen 1 ; Zeng, Ya-Wen 1 ;

作者机构： 1.Yunnan Acad Agr Sci, Biotechnol & Germplasm Resource Inst, Kunming, Yunnan, Peoples R China

2.Univ Karachi, Karachi Inst Biotechnol & Genet Engn KIBGE, Karachi, Pakistan

3.Southwest Forestry Univ, Sch Hort & Gardening, Kunming, Yunnan, Peoples R China

4.Yunnan Agr Univ, Coll Agron & Biotechnol, Kunming, Yunnan, Peoples R China

5.Yunnan Acad Agr Sci, Inst Qual Stand & Testing Technol, Kunming, Yunnan, Peoples R China

关键词： chilling stress; minerals; QTLs; booting stage; tolerance

期刊名称：FRONTIERS IN GENETICS （ 影响因子：4.772； 五年影响因子：4.933 ）

ISSN：

年卷期： 2021 年 12 卷

页码：

收录情况： SCI

摘要： Chilling stress at booting stage can cause floret deterioration and sterility by limiting the supply of food chain and the accumulation of essential mineral elements resulting in reduction of yield and grain quality attributes in rice. Genomic selection of chilling tolerant rice with reference to the accumulation of mineral elements will have great potential to cope with malnutrition and food security in times of climate change. Therefore, a study was conducted to explore the genomic determinants of cold tolerance and mineral elements content in near-isogenic lines (NILs) of japonica rice subjected to chilling stress at flowering stage. Detailed morphological analysis followed by quantitative analysis of 17 mineral elements revealed that the content of phosphorus (P, 3,253 mg/kg) and potassium (K, 2,485 mg/kg) were highest while strontium (Sr, 0.26 mg/kg) and boron (B, 0.34 mg/kg) were lowest among the mineral elements. The correlation analysis revealed extremely positive correlation of phosphorus (P) and copper (Cu) with most of the cold tolerance traits. Among all the effective ear and the second leaf length correlation was significant with half of the mineral elements. As a result of comparative analysis, some QTLs (qBRCC-1, qBRCIC-2, qBRZC-6, qBRCHC-6, qBRMC-6, qBRCIC-6a, qBRCIC-6b, qBRCHC-6, and qBRMC-6) identified for calcium (Ca), zinc (Zn), chromium (Cr) and magnesium (Mg) on chromosome number 1, 2, and 6 while, a novel QTL (qBCPC-1) was identified on chromosome number 1 for P element only. These findings provided bases for the identification of candidate genes involved in mineral accumulation and cold tolerance in rice at booting stage.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：云南省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台