A SNP‐based genetic dissection of versatile traits in bread wheat (<i>Triticum aestivum</i> L.)

Arif, Mian Abdur Rehman; Shokat, Sajid; Plieske, Jörg; Ganal, Martin W.; Lohwasser, U.; Chesnokov, Yu. V.; Kocherina, Nataliya V; Kulwal, Pawan L.; Kumar, Neeraj; McGuire, Patrick E.; Sorrells, Mark E.; Qualset, C. O.; Börner, Andreas

doi:10.1111/tpj.15407

Cited by 27 publications

(62 citation statements)

References 107 publications

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“…The QTL of plant height, TGW, and grain weight per spike were detected between 598 and 641 Mb on 1B [ 76 ]. The TGW QTL was also reported on 1B.1 [ 55 ] and 1B’s long arm [ 10 ]. An ELF gene ( TaELF3-1B ) was 4 Mb beyond cluster 1B.3 (685.6 Mb), which may contribute to the QTL.…”

Section: Discussionmentioning

confidence: 97%

“…Similar QTL results of TGW and seed width were reported on this region in previous studies [ 10 , 70 , 71 ]. Recently, the QTL of grain weight per spike, GN, grain yield (GY), and TGW were also detected in this region [ 55 ]. The results indicated that this region contributed TGW and seed-related parameters.…”

Section: Discussionmentioning

confidence: 99%

“…Another QTL cluster (1A.2) of GY and NUE/PY was on 1A’s long arm (544.05–591.09 Mb). The QTL of biological yield, plant height, and spike length were also reported to be in this region [ 55 , 73 ]. One QTL of spike compactness was on 1A.2 with an expected candidate gene—TraesCS1A01G425200 (580.4 Mb) [ 74 , 75 ].…”

Section: Discussionmentioning

confidence: 99%

“…Similarly, the QTL of flowering time, heading time, and GN were on 1D.1. Heading time and spike weight per spike were in cluster 1D.2 [ 55 ]. On the partially overlapped region of 1D.1 (20–49 Mb), the QTL of spike weight and Spikelet were also identified [ 73 ].…”

Section: Discussionmentioning

confidence: 99%

“…The QTL of other agronomic traits, such as TGW, GW, GN, spikelet number per spike, biomass, spike length, GPC, and seed parameters have been identified in almost all 21 chromosomes in wheat [ 4 , 5 , 6 , 7 , 11 , 55 ]. A few yield-related genes have been cloned.…”

Section: Introductionmentioning

confidence: 99%

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Yield-Related QTL Clusters and the Potential Candidate Genes in Two Wheat DH Populations

Zhang

She

Yang

et al. 2021

IJMS

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In the present study, four large-scale field trials using two doubled haploid wheat populations were conducted in different environments for two years. Grain protein content (GPC) and 21 other yield-related traits were investigated. A total of 227 QTL were mapped on 18 chromosomes, which formed 35 QTL clusters. The potential candidate genes underlying the QTL clusters were suggested. Furthermore, adding to the significant correlations between yield and its related traits, correlation variations were clearly shown within the QTL clusters. The QTL clusters with consistently positive correlations were suggested to be directly utilized in wheat breeding, including 1B.2, 2A.2, 2B (4.9–16.5 Mb), 2B.3, 3B (68.9–214.5 Mb), 4A.2, 4B.2, 4D, 5A.1, 5A.2, 5B.1, and 5D. The QTL clusters with negative alignments between traits may also have potential value for yield or GPC improvement in specific environments, including 1A.1, 2B.1, 1B.3, 5A.3, 5B.2 (612.1–613.6 Mb), 7A.1, 7A.2, 7B.1, and 7B.2. One GPC QTL (5B.2: 671.3–672.9 Mb) contributed by cultivar Spitfire was positively associated with nitrogen use efficiency or grain protein yield and is highly recommended for breeding use. Another GPC QTL without negatively pleiotropic effects on 2A (50.0–56.3 Mb), 2D, 4D, and 6B is suggested for quality wheat breeding.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Yield-Related QTL Clusters and the Potential Candidate Genes in Two Wheat DH Populations

Zhang

She

Yang

et al. 2021

IJMS

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The role of genetic diversity and pre‐breeding traits to improve drought and heat tolerance of bread wheat at the reproductive stage

Shokat,

Großkinsky,

Singh

et al. 2023

Food and Energy Security

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Extreme weather including heat waves and drought episodes are expected to increase in intensity and duration due to climate change. Wheat, being a major crop is under extreme threat to these stresses especially at the reproductive stage. This review addresses the potential of diverse wheat germplasm (originated from landraces and synthetic derivatives) to cope with drought and heat stress at the flowering stage. Here, important marker‐trait associations were reported for sustainable grain production under drought and heat stress at anthesis. Likewise, the mechanisms of drought and heat resilience including gene expression and physiological traits (activities of carbohydrate metabolic and antioxidant enzymes, and endogenous hormonal responses) were explored. These studies helped to understand the genetic and physiological basis of drought and heat tolerance and certain pre‐breeding traits related to osmotic adjustment, phytohormonal regulation, antioxidant metabolism, and the expression of novel genes were identified. Moreover, identified pre‐breeding traits and genotypes can be utilized in breeding wheat cultivars resilient to future adverse environments.

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Wheat glutamine synthetase TaGSr-4B is a candidate gene for a QTL of thousand grain weight on chromosome 4B

et al. 2022

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Key message Glutamine synthetase TaGSr-4B is a candidate gene for a QTL of thousand grain weight on 4B, and the gene marker is ready for wheat breeding. Abstract A QTL for thousand grain weight (TGW) in wheat was previously mapped on chromosome 4B in a DH population of Westonia × Kauz. For identifying the candidate genes of the QTL, wheat 90 K SNP array was used to saturate the existing linkage map, and four field trials plus one glasshouse experiment over five locations were conducted to refine the QTL. Three nitrogen levels were applied to two of those field trials, resulting in a TGW phenotype data set from nine environments. A robust TGW QTL cluster including 773 genes was detected in six environments with the highest LOD value of 13.4. Based on differentiate gene expression within the QTL cluster in an RNAseq data of Westonia and Kauz during grain filling, a glutamine synthesis gene (GS: TaGSr-4B) was selected as a potential candidate gene for the QTL. A SNP on the promoter region between Westonia and Kauz was used to develop a cleaved amplified polymorphic marker for TaGSr-4B gene mapping and QTL reanalysing. As results, TGW QTL appeared in seven environments, and in four out of seven environments, the TGW QTL were localized on the TaGSr-4B locus and showed significant contributions to the phenotype. Based on the marker, two allele groups of Westonia and Kauz formed showed significant differences on TGW in eight environments. In agreement with the roles of GS genes on nitrogen and carbon remobilizations, TaGSr-4B is likely the candidate gene of the TGW QTL on 4B and the TaGSr-4B gene marker is ready for wheat breeding.

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A SNP‐based genetic dissection of versatile traits in bread wheat (Triticum aestivum L.)

Cited by 27 publications

References 107 publications

Yield-Related QTL Clusters and the Potential Candidate Genes in Two Wheat DH Populations

Yield-Related QTL Clusters and the Potential Candidate Genes in Two Wheat DH Populations

The role of genetic diversity and pre‐breeding traits to improve drought and heat tolerance of bread wheat at the reproductive stage

Wheat glutamine synthetase TaGSr-4B is a candidate gene for a QTL of thousand grain weight on chromosome 4B

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