Drought resistance of wheat alien chromosome addition lines evaluated by membership function value based on multiple traits and drought resistance index of grain yield

Liu, Caiyun; Yang, Zhaohui; Hu, Yin‐Gang

doi:10.1016/j.fcr.2015.04.016

Cited by 55 publications

(34 citation statements)

References 30 publications

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“…Traits with higher genetic variation and heritability, such as PH, could be a reliable selection criterion for drought tolerance in wheat breeding [16]. A number of secondary traits such as PH, GVW and HD have been investigated to provide relevant information for drought tolerance evaluation [17,29,37]. Selection criteria based on secondary traits may vary significantly with different germplasm [44].…”

Section: Discussionmentioning

confidence: 99%

“…The MFVD index integrates the drought-tolerant coefficient (DC) of different traits [16,37]. In the present study, the H 2 of the five traits was calculated using the average mean of three environments.…”

Section: Discussionmentioning

confidence: 99%

“…An alternative approach is the use of selection indices in combination with two or more traits, which could prove superior to either direct selection for either grain yield or the single traits independently [35,36]. The analysis membership function value of drought tolerance (MFVD), integrating more traits, is currently being evaluated for wheat drought tolerance selection [16,37].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Agronomic Traits and Drought Tolerance of Winter Wheat Accessions from the USDA-ARS National Small Grains Collection

Liu

Bowman

et al. 2017

Agronomy

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Wheat accessions from the USDA-ARS National Small Grains Collection (NSGC) are a potential genetic resource for variety improvement. This study assessed the agronomic performance and drought tolerance in 198 winter wheat accessions under irrigated and terminal drought environments in the 2012-2013 season, and repeated the test under terminal drought only during the 2013-2014 season. The 198 accessions were classified into three maturity groups, early, intermediate, and late based on heading data. In all three environments, the early accessions had the best agronomic performance, produced higher grain yield, thousand-kernel weight and grain volume weight, and had earlier heading date and shorter plant height. The intermediate accessions had similar grain yield and thousand-kernel weight as the early accessions in the irrigated environment, but had lower thousand-kernel weight in the terminal drought environments. Terminal drought had significant effects on grain yield, plant height, thousand-kernel weight, and grain volume weight. The positive correlation between GY and HD suggests that the 'late early' types in the early maturity were the most successful. Out of 198 accessions evaluated, twenty-three had high yield stability and drought tolerance according to the drought susceptibility index and membership function value of drought tolerance. The eight of twenty-three accessions identified (four early and four intermediate) had high grain yield in three environments. Some of these accessions have been further used in bi-parental mapping studies and by breeders for grain yield and drought tolerance improvement.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evaluation of Agronomic Traits and Drought Tolerance of Winter Wheat Accessions from the USDA-ARS National Small Grains Collection

Liu

Bowman

et al. 2017

Agronomy

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“…The result showed that 26 out of 82 lines possessed high levels of drought tolerance. (Liu et al, 2015) 15…”

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confidence: 99%

Recent Progress in Germplasm Evaluation and Gene Mapping to Enable Breeding of Drought-Tolerant Wheat

2020

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There is a need to increase wheat productivity to meet the food demands of the evergrowing human population. However, accelerated development of high yielding varieties is hindered by drought, which is worsening due to climate change. In this context, germplasm diversity is central to the development of drought-tolerant wheat. Extensive collections of these genetic resources are conserved in national and international genebanks. In addition to phenotypic assessments, the use of advanced molecular techniques (e.g., genotype by sequencing) to identify quantitative trait loci (QTLs) for drought tolerance related traits is useful for genome-and marker-assisted selection based approaches. Therefore, to assist wheat breeders at a critical time, we searched the recent peer-reviewed literature (2011-current), first, to identify wheat germplasm observed to be useful genetic sources for drought tolerance, and second, to report QTLs associated with drought tolerance. Though many breeders limit the parents used in breeding programs to a familiar core collection, the results of this review show that larger germplasm collections have been sources of useful genes for drought tolerance in wheat. The review also demonstrates that QTLs for drought tolerance in wheat are associated with diverse physio-morphological traits, at different growth stages. Here, we also briefly discuss the potential of genome engineering/editing to improve drought tolerance in wheat. The use of CRISPR-Cas9 and other gene-editing technologies can be used to fine-tune the expression of genes controlling drought adaptive traits, while high throughput phenotyping (HTP) techniques can potentially accelerate the selection process. These efforts are empowered by wheat researcher consortia.

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“…The most used indicators are based on the targeted traits, such as the average yield at the considered site (Fleury et al, 2010), or indices such as the ratio of yield under stressed conditions compared with optimal conditions (Liu et al, 2015). Another strategy uses thresholds such as the number of days with temperatures above 30°C (Kuchel et al, 2007).…”

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Quantifying Wheat Sensitivities to Environmental Constraints to Dissect Genotype × Environment Interactions in the Field

et al. 2017

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ORCID IDs: 0000-0002-7600-9592 (B.P.); 0000-0003-3851-8617 (J.B.); 0000-0001-9494-400X (P.L.); 0000-0002-7077-4103 (D.F.).Yield is subject to strong genotype-by-environment (G 3 E) interactions in the field, especially under abiotic constraints such as soil water deficit (drought [D]) and high temperature (heat [H]). Since environmental conditions show strong fluctuations during the whole crop cycle, geneticists usually do not consider environmental measures as quantitative variables but rather as factors in multienvironment analyses. Based on 11 experiments in a field platform with contrasting temperature and soil water deficit, we determined the periods of sensitivity to drought and heat constraints in wheat (Triticum aestivum) and determined the average sensitivities for major yield components. G 3 E interactions were separated into their underlying components, constitutive genotypic effect (G), G 3 D, G 3 H, and G 3 H 3 D, and were analyzed for two genotypes, highlighting contrasting responses to heat and drought constraints. We then tested the constitutive and responsive behaviors of two strong quantitative trait loci (QTLs) associated previously with yield components. This analysis confirmed the constitutive effect of the chromosome 1B QTL and explained the G 3 E interaction of the chromosome 3B QTL by a benefit of one allele when temperature rises. In addition to the method itself, which can be applied to other data sets and populations, this study will support the cloning of a major yield QTL on chromosome 3B that is highly dependent on environmental conditions and for which the climatic interaction is now quantified.

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Drought resistance of wheat alien chromosome addition lines evaluated by membership function value based on multiple traits and drought resistance index of grain yield

Cited by 55 publications

References 30 publications

Evaluation of Agronomic Traits and Drought Tolerance of Winter Wheat Accessions from the USDA-ARS National Small Grains Collection

Evaluation of Agronomic Traits and Drought Tolerance of Winter Wheat Accessions from the USDA-ARS National Small Grains Collection

Recent Progress in Germplasm Evaluation and Gene Mapping to Enable Breeding of Drought-Tolerant Wheat

Quantifying Wheat Sensitivities to Environmental Constraints to Dissect Genotype × Environment Interactions in the Field

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