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Identification and validation of stable quantitative trait loci for grain filling rate in common wheat (Triticum aestivum L.).
Theor Appl Genet. 2020 Aug; 133(8):2377-2385.TA

Abstract

KEY MESSAGE

We identified and validated two stable grain filling rate (GFR) quantitative trait loci (QTL) in wheat that positively influenced several yield-related traits. Among them, QGfr.sicau-7D.1 was a novel GFR QTL. The grain filling rate (GFR) plays a crucial role in determining grain yield. To advance the current understanding of the genetic characteristics underlying the GFR in common wheat, three recombinant inbred line populations were used to map and validate GFR quantitative trait loci (QTL). Using a high-density genetic linkage map, 10 GFR QTL were detected. They were located on chromosomes 2D, 4A, 4B, 5B, 6D, 7A and 7D, explained 4.99-12.62% of the phenotypic variation. Two of them, QGfr.sicau-6D and QGfr.sicau-7D.1, were detected in all four environments tested and their genetic effect was validated by closely linked kompetitive allele specific PCR (KASP) markers in different genetic backgrounds. The effects of these two GFR QTL on other yield-related traits were also estimated. QGfr.sicau-6D had a significant positive influence (p < 0.01) on thousand kernel weight, kernel width, kernel volume, and kernel surface area. QGfr.sicau-7D.1 had a significant positive influence (p < 0.01) on thousand kernel weight and kernel length. Furthermore, QGfr.sicau-7D.1 was a completely novel QTL for GFR; several genes associated with grain growth and development were predicted in its physical interval. These results will facilitate molecular marker-assisted selection of wheat with high-confidence QTL for GFR and fine mapping of genes associated with GFR, thereby contributing to yield improvement.

Authors+Show Affiliations

Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China.Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China.Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China.Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China.Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China.Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China.Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China.Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China.Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China.State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Wenjiang, Chengdu, 611130, China. Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China.College of Resources, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China.State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Wenjiang, Chengdu, 611130, China. Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China.State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Wenjiang, Chengdu, 611130, China. Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China.State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Wenjiang, Chengdu, 611130, China. liuyaxi@sicau.edu.cn. Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China. liuyaxi@sicau.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32430666

Citation

Lin, Yu, et al. "Identification and Validation of Stable Quantitative Trait Loci for Grain Filling Rate in Common Wheat (Triticum Aestivum L.)." TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, vol. 133, no. 8, 2020, pp. 2377-2385.
Lin Y, Jiang X, Tao Y, et al. Identification and validation of stable quantitative trait loci for grain filling rate in common wheat (Triticum aestivum L.). Theor Appl Genet. 2020;133(8):2377-2385.
Lin, Y., Jiang, X., Tao, Y., Yang, X., Wang, Z., Wu, F., Liu, S., Li, C., Deng, M., Ma, J., Chen, G., Wei, Y., Zheng, Y., & Liu, Y. (2020). Identification and validation of stable quantitative trait loci for grain filling rate in common wheat (Triticum aestivum L.). TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, 133(8), 2377-2385. https://doi.org/10.1007/s00122-020-03605-0
Lin Y, et al. Identification and Validation of Stable Quantitative Trait Loci for Grain Filling Rate in Common Wheat (Triticum Aestivum L.). Theor Appl Genet. 2020;133(8):2377-2385. PubMed PMID: 32430666.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Identification and validation of stable quantitative trait loci for grain filling rate in common wheat (Triticum aestivum L.). AU - Lin,Yu, AU - Jiang,Xiaojun, AU - Tao,Yang, AU - Yang,Xilan, AU - Wang,Zhiqiang, AU - Wu,Fangkun, AU - Liu,Shihang, AU - Li,Caixia, AU - Deng,Mei, AU - Ma,Jian, AU - Chen,Guangdeng, AU - Wei,Yuming, AU - Zheng,Youliang, AU - Liu,Yaxi, Y1 - 2020/05/19/ PY - 2019/12/05/received PY - 2020/05/09/accepted PY - 2020/5/21/pubmed PY - 2021/2/17/medline PY - 2020/5/21/entrez SP - 2377 EP - 2385 JF - TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik JO - Theor Appl Genet VL - 133 IS - 8 N2 - KEY MESSAGE: We identified and validated two stable grain filling rate (GFR) quantitative trait loci (QTL) in wheat that positively influenced several yield-related traits. Among them, QGfr.sicau-7D.1 was a novel GFR QTL. The grain filling rate (GFR) plays a crucial role in determining grain yield. To advance the current understanding of the genetic characteristics underlying the GFR in common wheat, three recombinant inbred line populations were used to map and validate GFR quantitative trait loci (QTL). Using a high-density genetic linkage map, 10 GFR QTL were detected. They were located on chromosomes 2D, 4A, 4B, 5B, 6D, 7A and 7D, explained 4.99-12.62% of the phenotypic variation. Two of them, QGfr.sicau-6D and QGfr.sicau-7D.1, were detected in all four environments tested and their genetic effect was validated by closely linked kompetitive allele specific PCR (KASP) markers in different genetic backgrounds. The effects of these two GFR QTL on other yield-related traits were also estimated. QGfr.sicau-6D had a significant positive influence (p < 0.01) on thousand kernel weight, kernel width, kernel volume, and kernel surface area. QGfr.sicau-7D.1 had a significant positive influence (p < 0.01) on thousand kernel weight and kernel length. Furthermore, QGfr.sicau-7D.1 was a completely novel QTL for GFR; several genes associated with grain growth and development were predicted in its physical interval. These results will facilitate molecular marker-assisted selection of wheat with high-confidence QTL for GFR and fine mapping of genes associated with GFR, thereby contributing to yield improvement. SN - 1432-2242 UR - https://www.unboundmedicine.com/medline/citation/32430666/Identification_and_validation_of_stable_quantitative_trait_loci_for_grain_filling_rate_in_common_wheat__Triticum_aestivum_L___ L2 - https://dx.doi.org/10.1007/s00122-020-03605-0 DB - PRIME DP - Unbound Medicine ER -