Comparative Aerial and Ground Based High Throughput Phenotyping for the Genetic Dissection of NDVI as a Proxy for Drought Adaptive Traits in Durum Wheat

Frontiers in Plant Science
Giuseppe E CondorelliRoberto Tuberosa

Abstract

High-throughput phenotyping platforms (HTPPs) provide novel opportunities to more effectively dissect the genetic basis of drought-adaptive traits. This genome-wide association study (GWAS) compares the results obtained with two Unmanned Aerial Vehicles (UAVs) and a ground-based platform used to measure Normalized Difference Vegetation Index (NDVI) in a panel of 248 elite durum wheat (Triticum turgidum L. ssp. durum Desf.) accessions at different growth stages and water regimes. Our results suggest increased ability of aerial over ground-based platforms to detect quantitative trait loci (QTL) for NDVI, particularly under terminal drought stress, with 22 and 16 single QTLs detected, respectively, and accounting for 89.6 vs. 64.7% phenotypic variance based on multiple QTL models. Additionally, the durum panel was investigated for leaf chlorophyll content (SPAD), leaf rolling and dry biomass under terminal drought stress. In total, 46 significant QTLs affected NDVI across platforms, 22 of which showed concomitant effects on leaf greenness, 2 on leaf rolling and 10 on biomass. Among 9 QTL hotspots on chromosomes 1A, 1B, 2B, 4B, 5B, 6B, and 7B that influenced NDVI and other drought-adaptive traits, 8 showed per se effects unrelated ...Continue Reading

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Citations

Apr 8, 2020·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Pushpendra Kumar GuptaRahul Kumar
Oct 1, 2020·Applications in Plant Sciences·Rumana AktarToni Kazic
Nov 18, 2018·Functional & Integrative Genomics·Sergio GálvezPilar Hernandez
Jun 26, 2020·Frontiers in Plant Science·Kamal KhadkaAlireza Navabi
Nov 5, 2019·Frontiers in Plant Science·Guosheng WuEdgar P Spalding
Oct 15, 2019·Frontiers in Plant Science·Joaquim Miguel CostaMaria Margarida Oliveira
Jan 8, 2021·Frontiers in Plant Science·Elisabetta MazzucotelliFilippo M Bassi
Feb 11, 2021·Plants·Pasqualina ColasuonnoJose Miguel Soriano
Sep 15, 2019·Plant Phenomics : a Science Partner Journal·Hema S N DudduSteven J Shirtliffe
Jul 28, 2019·Plant Phenomics : a Science Partner Journal·Kyle ParmleyAsheesh K Singh
Jul 1, 2021·Plant, Cell & Environment·Nícolas Zendonadi Dos SantosOnno Muller
Aug 8, 2021·International Journal of Molecular Sciences·Minsu KimKyung-Hwan Kim
Dec 5, 2021·The Plant Journal : for Cell and Molecular Biology·Takashi KuromoriKazuo Shinozaki

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Methods Mentioned

BETA
light scattering
dissection
genotyping

Software Mentioned

STRUCTURE
lme4 R scripts
GreenSeeker
Haploview
custom
RedEdge
Minitab
R
TASSEL ( Trait Analysis by aSSociation , Evolution and Linkage )
UgCS

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