Detection of QTL for phosphorus efficiency and biomass traits at the seedling stage in wheat

Yang, Yuan; Zhang, M.; Zheng, Honghua; Kong, Fanmei; Guo, Ying; Zhao, Ya; An, Yuling

doi:10.1007/s42976-020-00067-4

Cited by 6 publications

(6 citation statements)

References 30 publications

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“…Similarly, previous research has been reported ( Su et al., 2009 ; Vijayalakshmi et al., 2010 ; Yang et al., 2016b ). The majority of chlorophyll content QTLs detected under CK, MP, and LP conditions are different, indicating that the chlorophyll regulation mechanism under low phosphorus conditions may differ from that under normal phosphorus conditions, and similar phenomena have been observed in previous research ( Yang et al., 2018 ; Yuan et al., 2020 ; Yang et al., 2021 ). Under multiple phosphorus conditions, six major QTLs Qchl.saw-2B.1 , Qchl.saw-3B.1 , Qchl.saw-4D.1 , Qchl.saw-4D.2 , Qchl.saw-5A.9 and Qchl.saw-6A.4 were detected ( Table 4 ).…”

Section: Discussionsupporting

confidence: 79%

Identification and validation of quantitative trait loci for chlorophyll content of flag leaf in wheat under different phosphorus treatments

Yang

Chen²,

Dang³

et al. 2022

Front. Plant Sci.

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In wheat, the leaf chlorophyll content in flag leaves is closely related to the degree of phosphorus stress. Identifying major genes/loci associated with chlorophyll content in flag leaves under different phosphorus conditions is critical for breeding wheat varieties resistant to low phosphorus (P). Under normal, medium, and low phosphorus conditions, the chlorophyll content of flag leaves was investigated by a double haploid (DH) population derived from a cross between two popular wheat varieties Jinmai 47 and Jinmai 84, at different grain filling stages. Chlorophyll content of the DH population and parents decreased gradually during the S1 to the S3 stages and rapidly at the S4 stage. At the S4 stage, the chlorophyll content of the DH population under low phosphorus conditions was significantly lower than under normal phosphate conditions. Using a wheat 15K single-nucleotide polymorphism (SNP) panel, a total of 157 QTLs were found to be associated with chlorophyll content in flag leaf and were identified under three phosphorus conditions. The phenotypic variation explained (PVE) ranged from 3.07 to 31.66%. Under three different phosphorus conditions, 36, 30, and 48 QTLs for chlorophyll content were identified, respectively. Six major QTLs Qchl.saw-2B.1, Qchl.saw-3B.1, Qchl.saw-4D.1, Qchl.saw-4D.2, Qchl.saw-5A.9 and Qchl.saw-6A.4 could be detected under multiple phosphorus conditions in which Qchl.saw-4D.1, Qchl.saw-4D.2, and Qchl.saw-6A.4 were revealed to be novel major QTLs. Moreover, the closely linked SNP markers of Qchl.saw-4D.1 and Qchl.saw-4D.2 were validated as KASP markers in a DH population sharing the common parent Jinmai 84, showed extreme significance (P <0.01) in more than three environments under different phosphorus conditions, which has the potential to be utilized in molecular marker-assisted breeding for low phosphorus tolerance in wheat.

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Section: Discussionsupporting

confidence: 79%

Identification and validation of quantitative trait loci for chlorophyll content of flag leaf in wheat under different phosphorus treatments

Yang

Chen²,

Dang³

et al. 2022

Front. Plant Sci.

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“…In another study, a single quantitative trait locus associated with RDW in 142 RILs derived from two Chinese winter wheat varieties (Xiaoyan 54 × Jing 411) was identified [35]. A total of 176 RILs of wheat derived from Shannong 0431 × Lumai 21 were used to detect more than two QTL for SDW and RDW under LP conditions, using 5916 SSR markers [28]. Seven QTL associated with RDW were determined in 241 RILs of maize derived from the cross of 082 and Ye107 genotypes under LP conditions [91].…”

Section: Discussionmentioning

confidence: 99%

“…A total of 16 QTL associated with plant height (PH), shoot length (SL), number of productive tillers (NPT), panicle length (PL), shoot dry weight (SDW), seed yield (SY), plant biomass, root-shoot ratio (RSR), and seed P content (SPC) were identified in rice (Oryza sativa) under LP conditions [24]. Similarly, 36 QTL associated with SDW; root dry weight (RDW); total dry weight (TDW); RSR; shoot P content; total P content (TPC); and shoot, root, and total P-utilization efficiency were identified in wheat (Triticum aestivum) under LP conditions [28]. Gao et al, 2020 identified several QTL for PAE-, PUE-, and yield-related traits at the maturity stages in 128 recombinant inbred lines (RILs) of barley (Hordeum vulgare) under LP conditions [29].…”

Section: Introductionmentioning

confidence: 99%

“…Several linkage-mapping studies have been conducted in other cereals to dissect the genetic mechanisms that control different traits using RILs [24,28,29,32,35]. Very recently, eight QTL for blast-resistance traits (leaf blast severity and panicle blast incidence at maturity) and agronomic traits (flowering date, pH, and panicle number) were identified in finger millet through linkage mapping [48].…”

Section: Introductionmentioning

confidence: 99%

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Identification of QTL Associated with Agro-Morphological and Phosphorus Content Traits in Finger Millet under Differential Phosphorus Supply via Linkage Mapping

et al. 2023

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Finger millet (Eleusine coracana (L.) Gaertn.) is one of the most important cereal crops for people in Asia and Africa. It supplies energy and nutrients for all people, particularly poor people in these continents. Phosphorus (P) is an essential macronutrient for plant growth and grain quality, so an adequate amount of P is required for healthy plant life. There is considerable evidence that P deficiency affects the growths and yields of all cereals, including finger millet. The present study aimed at identifying the quantitative trait loci (QTL) for various agro-morphological and P-content traits under low P (LP) and high P (HP) conditions through linkage mapping. Two cultivars, IE-2606 (low-P-susceptible) and PR-202 (low-P-tolerant) were used to develop 100 recombinant inbred lines (RILs). In total, 55 QTL, associated with various agro-morphological (primary root length (PRL), shoot fresh weight (SFW), root fresh weight (RFW), shoot dry weight (SDW), root dry weight (RDW), and root hair density (RHD)) and P-content traits (inorganic phosphate content in shoots (PiS), inorganic phosphate content in roots (PiR), and total P content in shoots (TPS)) were detected under LP conditions. Similarly, 37 QTL for various agro-morphological (PRL, RFW, SDW, and root hair length (RHL)) and P-content traits (PiS, PiR, TPS, and total P content in roots (TPR)) were detected under HP conditions. Biotic and abiotic stress-responsive candidate genes linked to a few QTL were also identified. The identified QTL associated with agro-morphological and P-content traits in finger millet under P deficiency could be used in breeding programs to develop finger millet with better P use efficiency (PUE). Furthermore, improving finger millet growth and yield under LP soil will help to reduce Pi application and eutrophication, which may help to improve the lives of poor farmers and maintain sustainable environments in Asia and African countries.

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“…To identify the localization of T. aestivum PSTOL1 orthologs with QTLs for morpho-physiological and biochemical traits under phosphorus starvation, QTLs and linked molecular markers were retrieved from previous publications [ 38 , 39 , 40 , 41 , 42 , 43 ], and co-localization was shown as described previously in [ 44 ]. To obtain the physical position, each marker sequence or marker name was BLAST against the grain gene database [ 45 ].…”

Section: Methodsmentioning

confidence: 99%

Role of Wheat Phosphorus Starvation Tolerance 1 Genes in Phosphorus Acquisition and Root Architecture

Abbas¹,

Naeem²,

Rubab

et al. 2022

Genes

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The wheat plant requires elevated phosphorus levels for its normal growth and yield, but continuously depleting non-renewable phosphorus reserves in the soil is one of the biggest challenges in agricultural production worldwide. The Phosphorus Starvation Tolerance 1 (PSTOL1) gene has been reported to play a key role in efficient P uptake, deeper rooting, and high yield in rice. However, the function of the PSTOL1 gene in wheat is still unclear. In this study, a total of 22 PSTOL1 orthologs were identified in the wheat genome, and found that wheat PSTOL1 orthologs are unevenly distributed on chromosomes, and these genes were under strong purifying selection. Under different phosphorus regimes, wheat PSTOL1 genes showed differential expression patterns in different tissues. These results strengthen the classification of Pakistan-13 as a P-efficient cultivar and Shafaq-06 as a P-inefficient cultivar. Phenotypic characterization demonstrated that Pakistan-13 wheat cultivar has significantly increased P uptake, root length, root volume, and root surface area compared to Shafaq-06. Some wheat PSTOL1 orthologs are co-localized with phosphorus starvation’s related quantitative trait loci (QTLs), suggesting their potential role in phosphorus use efficiency. Altogether, these results highlight the role of the wheat PSTOL1 genes in wheat P uptake, root architecture, and efficient plant growth. This comprehensive study will be helpful for devising sustainable strategies for wheat crop production and adaptation to phosphorus insufficiency.

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Detection of QTL for phosphorus efficiency and biomass traits at the seedling stage in wheat

Cited by 6 publications

References 30 publications

Identification and validation of quantitative trait loci for chlorophyll content of flag leaf in wheat under different phosphorus treatments

Identification and validation of quantitative trait loci for chlorophyll content of flag leaf in wheat under different phosphorus treatments

Identification of QTL Associated with Agro-Morphological and Phosphorus Content Traits in Finger Millet under Differential Phosphorus Supply via Linkage Mapping

Role of Wheat Phosphorus Starvation Tolerance 1 Genes in Phosphorus Acquisition and Root Architecture

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