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Identification of eight QTL controlling multiple yield components in a German multi-parental wheat population, including Rht24, WAPO-A1, WAPO-B1 and genetic loci on chromosomes 5A and 6A.
Theor Appl Genet. 2021 May; 134(5):1435-1454.TA

Abstract

KEY MESSAGE

Quantitative trait locus (QTL) mapping of 15 yield component traits in a German multi-founder population identified eight QTL each controlling ≥2 phenotypes, including the genetic loci Rht24, WAPO-A1 and WAPO-B1. Grain yield in wheat (Triticum aestivum L.) is a polygenic trait representing the culmination of many developmental processes and their interactions with the environment. Toward maintaining genetic gains in yield potential, 'reductionist approaches' are commonly undertaken by which the genetic control of yield components, that collectively determine yield, are established. Here we use an eight-founder German multi-parental wheat population to investigate the genetic control and phenotypic trade-offs between 15 yield components. Increased grains per ear was significantly positively correlated with the number of fertile spikelets per ear and negatively correlated with the number of infertile spikelets. However, as increased grain number and fertile spikelet number per ear were significantly negatively correlated with thousand grain weight, sink strength limitations were evident. Genetic mapping identified 34 replicated quantitative trait loci (QTL) at two or more test environments, of which 24 resolved into eight loci each controlling two or more traits-termed here 'multi-trait QTL' (MT-QTL). These included MT-QTL associated with previously cloned genes controlling semi-dwarf plant stature, and with the genetic locus Reduced height 24 (Rht24) that further modulates plant height. Additionally, MT-QTL controlling spikelet number traits were located to chromosome 7A encompassing the gene WHEAT ORTHOLOG OF APO1 (WAPO-A1), and to its homoeologous location on chromosome 7B containing WAPO-B1. The genetic loci identified in this study, particularly those that potentially control multiple yield components, provide future opportunities for the targeted investigation of their underlying genes, gene networks and phenotypic trade-offs, in order to underpin further genetic gains in yield.

Authors+Show Affiliations

NIAB, 93 Lawrence Weaver Road, Cambridge, CB3 0LE, UK.Department of Agriculture, University of Sassari, Viale Italia, 07100, Sassari, Italy.NIAB, 93 Lawrence Weaver Road, Cambridge, CB3 0LE, UK.University of Messina, Messina, Italy.NIAB, 93 Lawrence Weaver Road, Cambridge, CB3 0LE, UK.Bavarian State Research Center for Agriculture, Institute for Crop Science and Plant Breeding, 85354, Freising, Germany.Norwegian University of Life Sciences (NMBU), P.O. Box 5003, NO-1432, Ås, Norway.Norwegian University of Life Sciences (NMBU), P.O. Box 5003, NO-1432, Ås, Norway.University of Messina, Messina, Italy.NIAB, 93 Lawrence Weaver Road, Cambridge, CB3 0LE, UK.Bavarian State Research Center for Agriculture, Institute for Crop Science and Plant Breeding, 85354, Freising, Germany. Saatzucht Donau GesmbH and Co KG, Mendelweg 1, 4981, Reichersberg, Austria.Bavarian State Research Center for Agriculture, Institute for Crop Science and Plant Breeding, 85354, Freising, Germany.Bavarian State Research Center for Agriculture, Institute for Crop Science and Plant Breeding, 85354, Freising, Germany.NIAB, 93 Lawrence Weaver Road, Cambridge, CB3 0LE, UK. james.cockram@niab.com.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

33712876

Citation

Corsi, Beatrice, et al. "Identification of Eight QTL Controlling Multiple Yield Components in a German Multi-parental Wheat Population, Including Rht24, WAPO-A1, WAPO-B1 and Genetic Loci On Chromosomes 5A and 6A." TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, vol. 134, no. 5, 2021, pp. 1435-1454.
Corsi B, Obinu L, Zanella CM, et al. Identification of eight QTL controlling multiple yield components in a German multi-parental wheat population, including Rht24, WAPO-A1, WAPO-B1 and genetic loci on chromosomes 5A and 6A. Theor Appl Genet. 2021;134(5):1435-1454.
Corsi, B., Obinu, L., Zanella, C. M., Cutrupi, S., Day, R., Geyer, M., Lillemo, M., Lin, M., Mazza, L., Percival-Alwyn, L., Stadlmeier, M., Mohler, V., Hartl, L., & Cockram, J. (2021). Identification of eight QTL controlling multiple yield components in a German multi-parental wheat population, including Rht24, WAPO-A1, WAPO-B1 and genetic loci on chromosomes 5A and 6A. TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, 134(5), 1435-1454. https://doi.org/10.1007/s00122-021-03781-7
Corsi B, et al. Identification of Eight QTL Controlling Multiple Yield Components in a German Multi-parental Wheat Population, Including Rht24, WAPO-A1, WAPO-B1 and Genetic Loci On Chromosomes 5A and 6A. Theor Appl Genet. 2021;134(5):1435-1454. PubMed PMID: 33712876.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Identification of eight QTL controlling multiple yield components in a German multi-parental wheat population, including Rht24, WAPO-A1, WAPO-B1 and genetic loci on chromosomes 5A and 6A. AU - Corsi,Beatrice, AU - Obinu,Lia, AU - Zanella,Camila M, AU - Cutrupi,Saverio, AU - Day,Rob, AU - Geyer,Manuel, AU - Lillemo,Morten, AU - Lin,Min, AU - Mazza,Lorenzo, AU - Percival-Alwyn,Lawrence, AU - Stadlmeier,Melanie, AU - Mohler,Volker, AU - Hartl,Lorenz, AU - Cockram,James, Y1 - 2021/03/12/ PY - 2020/11/06/received PY - 2021/01/20/accepted PY - 2021/3/14/pubmed PY - 2021/8/25/medline PY - 2021/3/13/entrez SP - 1435 EP - 1454 JF - TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik JO - Theor Appl Genet VL - 134 IS - 5 N2 - KEY MESSAGE: Quantitative trait locus (QTL) mapping of 15 yield component traits in a German multi-founder population identified eight QTL each controlling ≥2 phenotypes, including the genetic loci Rht24, WAPO-A1 and WAPO-B1. Grain yield in wheat (Triticum aestivum L.) is a polygenic trait representing the culmination of many developmental processes and their interactions with the environment. Toward maintaining genetic gains in yield potential, 'reductionist approaches' are commonly undertaken by which the genetic control of yield components, that collectively determine yield, are established. Here we use an eight-founder German multi-parental wheat population to investigate the genetic control and phenotypic trade-offs between 15 yield components. Increased grains per ear was significantly positively correlated with the number of fertile spikelets per ear and negatively correlated with the number of infertile spikelets. However, as increased grain number and fertile spikelet number per ear were significantly negatively correlated with thousand grain weight, sink strength limitations were evident. Genetic mapping identified 34 replicated quantitative trait loci (QTL) at two or more test environments, of which 24 resolved into eight loci each controlling two or more traits-termed here 'multi-trait QTL' (MT-QTL). These included MT-QTL associated with previously cloned genes controlling semi-dwarf plant stature, and with the genetic locus Reduced height 24 (Rht24) that further modulates plant height. Additionally, MT-QTL controlling spikelet number traits were located to chromosome 7A encompassing the gene WHEAT ORTHOLOG OF APO1 (WAPO-A1), and to its homoeologous location on chromosome 7B containing WAPO-B1. The genetic loci identified in this study, particularly those that potentially control multiple yield components, provide future opportunities for the targeted investigation of their underlying genes, gene networks and phenotypic trade-offs, in order to underpin further genetic gains in yield. SN - 1432-2242 UR - https://www.unboundmedicine.com/medline/citation/33712876/Identification_of_eight_QTL_controlling_multiple_yield_components_in_a_German_multi_parental_wheat_population_including_Rht24_WAPO_A1_WAPO_B1_and_genetic_loci_on_chromosomes_5A_and_6A_ L2 - https://dx.doi.org/10.1007/s00122-021-03781-7 DB - PRIME DP - Unbound Medicine ER -