Genomic prediction and QTL analysis for grain Zn content and yield in Aus-derived rice populations

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-05-09 DOI:10.1007/s13562-024-00886-0

Tapas Kumer Hore, C. H. Balachiranjeevi, Mary Ann Inabangan-Asilo, C. A. Deepak, Alvin D. Palanog, Jose E. Hernandez, Glenn B. Gregorio, Teresita U. Dalisay, Maria Genaleen Q. Diaz, Roberto Fritsche Neto, Md. Abdul Kader, Partha Sarathi Biswas, B. P. Mallikarjuna Swamy

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Abstract

Zinc (Zn) biofortification of rice can address Zn malnutrition in Asia. Identification and introgression of QTLs for grain Zn content and yield (YLD) can improve the efficiency of rice Zn biofortification. In four rice populations we detected 56 QTLs for seven traits by inclusive composite interval mapping (ICIM), and 16 QTLs for two traits (YLD and Zn) by association mapping. The phenotypic variance (PV) varied from 4.5% (qPN_4.1) to 31.7% (qPH_1.1). qDF_1.1, qDF_7.2, qDF_8.1, qPH_1.1, qPH_7.1, qPL_1.2, qPL_9.1, qZn_5.1, qZn_5.2, qZn_6.1 and qZn_7.1 were identified in both dry and wet seasons; qZn_5.1, qZn_5.2, qZn_5.3, qZn_6.2, qZn_7.1 and qYLD_1.2 were detected by both ICIM and association mapping. qZn_7.1 had the highest PV (17.8%) and additive effect (2.5 ppm). Epistasis and QTL co-locations were also observed for different traits. The multi-trait genomic prediction values were 0.24 and 0.16 for YLD and Zn respectively. qZn_6.2 was co-located with a gene (OsHMA2) involved in Zn transport. These results are useful for Zn biofortificatiton of rice.

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澳大利亚水稻群体谷物锌含量和产量的基因组预测和 QTL 分析

对水稻进行锌（Zn）生物强化可解决亚洲的锌营养不良问题。谷物锌含量和产量（YLD）QTLs的鉴定和导入可提高水稻锌生物强化的效率。在四个水稻群体中，我们通过包容性复合间隔图谱（ICIM）检测到七个性状的 56 个 QTLs，通过关联图谱检测到两个性状（YLD 和 Zn）的 16 个 QTLs。qDF1.1、qDF7.2、qDF8.1、qPH1.1、qPH7.1、qPL1.2、qPL9.1、qZn5.1、qZn5.2、qZn6.1和qZn7.1的表型方差（PV）从4.5%（qPN4.1）到31.7%（qPH1.1）不等。qZn7.1 的 PV 值（17.8%）和加性效应（2.5 ppm）最高。还观察到不同性状的外显性和 QTL 共定位。qZn6.2与一个参与锌转运的基因（OsHMA2）共位。这些结果对水稻的锌生物强化很有帮助。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.

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