Identification and validation of QTL for grain yield and plant water status under contrasting water treatments in fall-sown spring wheats

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Junli ZhangJorge Dubcovsky

Abstract

Chromosome regions affecting grain yield, grain yield components and plant water status were identified and validated in fall-sown spring wheats grown under full and limited irrigation. Increases in wheat production are required to feed a growing human population. To understand the genetic basis of grain yield in fall-sown spring wheats, we performed a genome-wide association study (GWAS) including 262 photoperiod-insensitive spring wheat accessions grown under full and limited irrigation treatments. Analysis of molecular variance showed that 4.1% of the total variation in the panel was partitioned among accessions originally developed under fall-sowing or spring-sowing conditions, 11.7% among breeding programs within sowing times and 84.2% among accessions within breeding programs. We first identified QTL for grain yield, yield components and plant water status that were significant in at least three environments in the GWAS, and then selected those that were also significant in at least two environments in a panel of eight biparental mapping populations. We identified and validated 14 QTL for grain yield, 15 for number of spikelets per spike, one for kernel number per spike, 11 for kernel weight and 9 for water status, which ...Continue Reading

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Citations

Nov 14, 2018·Journal of Integrative Plant Biology·Jemima Brinton, Cristobal Uauy
Jun 30, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Kai P Voss-FelsBenjamin Wittkop
Aug 14, 2019·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Sara FarokhzadehAbbas Mirsoleimani
Jun 30, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Saarah KuzayJorge Dubcovsky
Jan 4, 2020·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Junmei HuHongwei Wang
Jul 1, 2020·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Xiaoxiang ZhangYaou Shen
Jul 1, 2018·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Youngjun MoJorge Dubcovsky
Jul 22, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Gaëtan TouzySébastien Praud
Nov 5, 2020·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Brittney H JonesLuther E Talbert
Nov 27, 2020·Communications Biology·Jemima BrintonCristobal Uauy
Dec 29, 2020·Communications Biology·Natalia TikhenkoAndreas Börner
Mar 10, 2021·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Kyle IshamJianli Chen
Nov 27, 2021·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Priscilla GlennJorge Dubcovsky
Jan 14, 2022·PLoS Genetics·Saarah KuzayJorge Dubcovsky

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Methods Mentioned

BETA
PCA

Software Mentioned

BayeScan
R
AucDes
PCA
STRUCTURE PLOT
STRUCTURE
lmerTest
Tassel
lme4
SAS

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