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Mapping Quantitative Trait Loci for 1000-Grain Weight in a Double Haploid Population of Common Wheat.
Int J Mol Sci. 2020 May 31; 21(11)IJ

Abstract

Thousand-grain weight (TGW) is a very important yield trait of crops. In the present study, we performed quantitative trait locus (QTL) analysis of TGW in a doubled haploid population obtained from a cross between the bread wheat cultivar "Superb" and the breeding line "M321" using the wheat 55-k single-nucleotide polymorphism (SNP) genotyping assay. A genetic map containing 15,001 SNP markers spanning 2209.64 cM was constructed, and 9 QTLs were mapped to chromosomes 1A, 2D, 4B, 4D, 5A, 5D, 6A, and 6D based on analyses conducted in six experimental environments during 2015-2017. The effects of the QTLs qTgw.nwipb-4DS and qTgw.nwipb-6AL were shown to be strong and stable in different environments, explaining 15.31-32.43% and 21.34-29.46% of the observed phenotypic variance, and they were mapped within genetic distances of 2.609 cM and 5.256 cM, respectively. These novel QTLs may be used in marker-assisted selection in wheat high-yield breeding.

Authors+Show Affiliations

Key Laboratory of Adaptation and Evolution of Plateau Biota (AEPB), Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China. University of Chinese Academy of Sciences, Beijing 100049, China.Key Laboratory of Adaptation and Evolution of Plateau Biota (AEPB), Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China. University of Chinese Academy of Sciences, Beijing 100049, China.Key Laboratory of Adaptation and Evolution of Plateau Biota (AEPB), Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China. University of Chinese Academy of Sciences, Beijing 100049, China.Key Laboratory of Adaptation and Evolution of Plateau Biota (AEPB), Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China. Qinghai Province Key Laboratory of Crop Mol. Breeding, Xining 810008, China.Key Laboratory of Adaptation and Evolution of Plateau Biota (AEPB), Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China. Qinghai Province Key Laboratory of Crop Mol. Breeding, Xining 810008, China.Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, 960 Carling Avenue, Ottawa, ON K1A 0C6, Canada.Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, 960 Carling Avenue, Ottawa, ON K1A 0C6, Canada.Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, 960 Carling Avenue, Ottawa, ON K1A 0C6, Canada.Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China.Key Laboratory of Adaptation and Evolution of Plateau Biota (AEPB), Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China. University of Chinese Academy of Sciences, Beijing 100049, China. Qinghai Province Key Laboratory of Crop Mol. Breeding, Xining 810008, China.Key Laboratory of Adaptation and Evolution of Plateau Biota (AEPB), Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China. Qinghai Province Key Laboratory of Crop Mol. Breeding, Xining 810008, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32486482

Citation

Liu, Tao, et al. "Mapping Quantitative Trait Loci for 1000-Grain Weight in a Double Haploid Population of Common Wheat." International Journal of Molecular Sciences, vol. 21, no. 11, 2020.
Liu T, Wu L, Gan X, et al. Mapping Quantitative Trait Loci for 1000-Grain Weight in a Double Haploid Population of Common Wheat. Int J Mol Sci. 2020;21(11).
Liu, T., Wu, L., Gan, X., Chen, W., Liu, B., Fedak, G., Cao, W., Chi, D., Liu, D., Zhang, H., & Zhang, B. (2020). Mapping Quantitative Trait Loci for 1000-Grain Weight in a Double Haploid Population of Common Wheat. International Journal of Molecular Sciences, 21(11). https://doi.org/10.3390/ijms21113960
Liu T, et al. Mapping Quantitative Trait Loci for 1000-Grain Weight in a Double Haploid Population of Common Wheat. Int J Mol Sci. 2020 May 31;21(11) PubMed PMID: 32486482.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Mapping Quantitative Trait Loci for 1000-Grain Weight in a Double Haploid Population of Common Wheat. AU - Liu,Tao, AU - Wu,Lijun, AU - Gan,Xiaolong, AU - Chen,Wenjie, AU - Liu,Baolong, AU - Fedak,George, AU - Cao,Wenguang, AU - Chi,Dawn, AU - Liu,Dengcai, AU - Zhang,Huaigang, AU - Zhang,Bo, Y1 - 2020/05/31/ PY - 2020/04/07/received PY - 2020/05/26/revised PY - 2020/05/28/accepted PY - 2020/6/4/entrez PY - 2020/6/4/pubmed PY - 2021/4/2/medline KW - DH population KW - QTL analysis KW - TGW KW - wheat KW - wheat55k SNP array JF - International journal of molecular sciences JO - Int J Mol Sci VL - 21 IS - 11 N2 - Thousand-grain weight (TGW) is a very important yield trait of crops. In the present study, we performed quantitative trait locus (QTL) analysis of TGW in a doubled haploid population obtained from a cross between the bread wheat cultivar "Superb" and the breeding line "M321" using the wheat 55-k single-nucleotide polymorphism (SNP) genotyping assay. A genetic map containing 15,001 SNP markers spanning 2209.64 cM was constructed, and 9 QTLs were mapped to chromosomes 1A, 2D, 4B, 4D, 5A, 5D, 6A, and 6D based on analyses conducted in six experimental environments during 2015-2017. The effects of the QTLs qTgw.nwipb-4DS and qTgw.nwipb-6AL were shown to be strong and stable in different environments, explaining 15.31-32.43% and 21.34-29.46% of the observed phenotypic variance, and they were mapped within genetic distances of 2.609 cM and 5.256 cM, respectively. These novel QTLs may be used in marker-assisted selection in wheat high-yield breeding. SN - 1422-0067 UR - https://www.unboundmedicine.com/medline/citation/32486482/Mapping_Quantitative_Trait_Loci_for_1000_Grain_Weight_in_a_Double_Haploid_Population_of_Common_Wheat_ DB - PRIME DP - Unbound Medicine ER -