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

IF 1.6 4区生物学 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY

Journal of Plant Biochemistry and Biotechnology 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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引用次数: 0

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

Journal of Plant Biochemistry and Biotechnology 生物-生化与分子生物学

CiteScore

3.90

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal publishes review articles, research papers, short communications and commentaries in the areas of plant biochemistry, plant molecular biology, microbial and molecular genetics, DNA finger printing, micropropagation, and plant biotechnology including plant genetic engineering, new molecular tools and techniques, genomics & bioinformatics.