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Genome-wide and SNP network analyses reveal genetic control of spikelet sterility and yield-related traits in wheat. Sci Rep 2020; 10:2098. [PMID: 32034248 PMCID: PMC7005900 DOI: 10.1038/s41598-020-59004-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Accepted: 01/21/2020] [Indexed: 02/03/2023] Open
Abstract
Revealing the genetic factors underlying yield and agronomic traits in wheat are an imperative need for covering the global food demand. Yield boosting requires a deep understanding of the genetic basis of grain yield-related traits (e.g., spikelet fertility and sterility). Here, we have detected much natural variation among ancient hexaploid wheat accessions in twenty-two agronomic traits collected over eight years of field experiments. A genome-wide association study (GWAS) using 15 K single nucleotide polymorphisms (SNPs) was applied to detect the genetic basis of studied traits. Subsequently, the GWAS output was reinforced via other statistical and bioinformatics analyses to detect putative candidate genes. Applying the genome-wide SNP-phenotype network defined the most decisive SNPs underlying the traits. Six pivotal SNPs, co-located physically within the genes encoding enzymes, hormone response, metal ion transport, and response to oxidative stress have been identified. Of these, metal ion transport and Gibberellin 2-oxidases (GA2oxs) genes showed strong involvement in controlling the spikelet sterility, which had not been reported previously in wheat. SNP-gene haplotype analysis confirmed that these SNPs influence spikelet sterility, especially the SNP co-located on the exon of the GA2ox gene. Interestingly, these genes were highly expressed in the grain and spike, demonstrating their pivotal role in controlling the trait. The integrative analysis strategy applied in this study, including GWAS, SNP-phenotype network, SNP-gene haplotype, expression analysis, and genome-wide prediction (GP), empower the identification of functional SNPs and causal genes. GP outputs obtained in this study are encouraging for the implementation of the traits to accelerate yield improvement by making an early prediction of complex yield-related traits in wheat. Our findings demonstrate the usefulness of the ancient wheat material as a valuable resource for yield-boosting. This is the first comprehensive genome-wide analysis for spikelet sterility in wheat, and the results provide insights into yield improvement.
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102
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Impa SM, Vennapusa AR, Bheemanahalli R, Sabela D, Boyle D, Walia H, Jagadish SVK. High night temperature induced changes in grain starch metabolism alters starch, protein, and lipid accumulation in winter wheat. PLANT, CELL & ENVIRONMENT 2020; 43:431-447. [PMID: 31702834 DOI: 10.1111/pce.13671] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 10/25/2019] [Accepted: 10/26/2019] [Indexed: 05/26/2023]
Abstract
Unlike sporadic daytime heat spikes, a consistent increase in night-time temperatures can potentially derail the genetic gains being achieved. Ten winter wheat genotypes were exposed to six different night-time temperatures (15-27°C) during flowering and grain-filling stages in controlled environment chambers. We identified the night-time temperature of 23o C as the critical threshold beyond which a consistent decline in yields and quality was observed. Confocal laser scanning micrographs of central endosperm, bran, and germ tissue displayed differential accumulation of protein, lipid, and starch with increasing night-time temperatures. KS07077M-1 recorded a decrease in starch and an increase in protein and lipid in central endosperm with increasing night-time temperatures, whereas the same was significantly lower in the tolerant SY Monument. Expression analysis of genes encoding 21 enzymes (including isoforms) involved in grain-starch metabolism in developing grains revealed a high night-time temperature (HNT)-induced reduction in transcript levels of adenosine diphosphate glucose pyrophosphorylase small subunit involved in starch synthesis and a ≥2-fold increase in starch degrading enzymes isoamylase III, alpha-, and beta-amylase. The identified critical threshold, grain compositional changes, and the key enzymes in grain starch metabolism that lead to poor starch accumulation in grains establish the foundational knowledge for enhancing HNT tolerance in wheat.
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Affiliation(s)
- Somayanda M Impa
- Department of Agronomy, Kansas State University, Manhattan, KS, 66506
| | | | | | - David Sabela
- Department of Agronomy, Kansas State University, Manhattan, KS, 66506
| | - Dan Boyle
- Division of Biology, Kansas State University, Manhattan, KS, 66506
| | - Harkamal Walia
- Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, 68583
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Rahman MS, Linsell KJ, Taylor JD, Hayden MJ, Collins NC, Oldach KH. Fine mapping of root lesion nematode (Pratylenchus thornei) resistance loci on chromosomes 6D and 2B of wheat. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2020; 133:635-652. [PMID: 31813000 DOI: 10.1007/s00122-019-03495-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 11/26/2019] [Indexed: 05/22/2023]
Abstract
Resistance QTL to root lesion nematode (Pratylenchus thornei) in wheat (Triticum aestivum), QRlnt.sk-6D and QRlnt.sk-2B, were mapped to intervals of 3.5 cM/1.77 Mbp on chromosome 6D and 1.4 cM/2.19 Mbp on chromosome 2B, respectively. Candidate resistance genes were identified in the QTL regions and molecular markers developed for marker-assisted breeding. Two previously known resistance QTL for root lesion nematode (Pratylenchus thornei) in bread wheat (Triticum aestivum), QRlnt.sk-6D and QRlnt.sk-2B, were fine-mapped using a Sokoll (moderately resistant) by Krichauff (susceptible) doubled haploid (DH) population and six newly developed recombinant inbred line populations. Bulked segregation analysis with the 90K wheat SNP array identified linked SNPs which were subsequently converted to KASP assays for mapping in the DH and RIL populations. On chromosome 6D, 60 KASP and five SSR markers spanned a total genetic distance of 23.7 cM. QRlnt.sk-6D was delimited to a 3.5 cM interval, representing 1.77 Mbp in the bread wheat cv. Chinese Spring reference genome sequence and 2.29 Mbp in the Aegilops tauschii genome sequence. These intervals contained 42 and 43 gene models in the respective annotated genome sequences. On chromosome 2B, 41 KASP and 5 SSR markers produced a map spanning 19.9 cM. QRlnt.sk-2B was delimited to 1.4 cM, corresponding 3.14 Mbp in the durum wheat cv. Svevo reference sequence and 2.19 Mbp in Chinese Spring. The interval in Chinese Spring contained 56 high-confidence gene models. Intervals for both QTL contained genes with similarity to those previously reported to be involved in disease resistance, namely genes for phenylpropanoid biosynthetic pathway-related enzymes, NBS-LRR proteins and protein kinases. The potential roles of these candidate genes in P. thornei resistance are discussed. The KASP markers reported in this study could potentially be used for marker-assisted breeding of P. thornei-resistant wheat cultivars.
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Affiliation(s)
- Muhammad Shefatur Rahman
- School of Agriculture, Food and Wine, The University of Adelaide, Glen Osmond, SA, 5064, Australia
- South Australian Research and Development Institute, Glen Osmond, SA, 5064, Australia
| | - Katherine J Linsell
- School of Agriculture, Food and Wine, The University of Adelaide, Glen Osmond, SA, 5064, Australia
- South Australian Research and Development Institute, Glen Osmond, SA, 5064, Australia
| | - Julian D Taylor
- School of Agriculture, Food and Wine, The University of Adelaide, Glen Osmond, SA, 5064, Australia
| | - Matthew J Hayden
- Department of Primary Industries, Victorian AgriBiosciences Centre, Bundoora, VIC, 3083, Australia
| | - Nicholas C Collins
- School of Agriculture, Food and Wine, The University of Adelaide, Glen Osmond, SA, 5064, Australia
| | - Klaus H Oldach
- School of Agriculture, Food and Wine, The University of Adelaide, Glen Osmond, SA, 5064, Australia.
- South Australian Research and Development Institute, Glen Osmond, SA, 5064, Australia.
- KWS Lochow GmbH, Ferdinand-von-Lochow-Str. 5, 29303, Bergen, Germany.
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Khan ZS, Rizwan M, Hafeez M, Ali S, Adrees M, Qayyum MF, Khalid S, Ur Rehman MZ, Sarwar MA. Effects of silicon nanoparticles on growth and physiology of wheat in cadmium contaminated soil under different soil moisture levels. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:4958-4968. [PMID: 31840219 DOI: 10.1007/s11356-019-06673-y] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 10/01/2019] [Indexed: 05/03/2023]
Abstract
Soil degradation with different stress conditions like accumulation of cadmium (Cd) contents in soil and drought stress has become one of the most dangerous issues that obstruct the sustainable agriculture production. Silicon nanoparticles (Si NPs) play beneficial roles in combating various biotic and abiotic stresses but their role under combined metal and drought stress is not studied. A pot study was designed to determine the effect of Si NPs on wheat (Triticum aestivum L.) growth and uptake of Cd grown in Cd contaminated soil with different water levels under ambient conditions. Four different levels of Si NPs (0, 25, 50, and 100 mg/kg) were applied in the soil before 1 week of wheat sowing and two water levels (70% and 35% soil water-holding capacity) were introduced after 50 days of seed sowing for the remaining growth period. The lowest biomass, yield, and photosynthesis were observed in the control plants while oxidative stress and the highest Cd concentrations in shoots, roots, and grains were observed in the control plants, and the drought stress further enhanced this effect on the plants. The Si NPs treatments improved the plant growth indicators and photosynthesis, and reduced the Cd concentrations in wheat tissues, especially in grains either without or with drought stress. The Si NPs reduced the oxidative stress in leaves as was indicated by the reduced production of hydrogen peroxide, electrolyte leakage, and malondialdehyde contents, and increase in superoxide dismutase and peroxidase activities. The improvement in wheat growth and a reduction in oxidative stress and Cd concentration in tissues were dependent on the levels of Si NPs and the effect was the highest with the highest level of NPs used.
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Affiliation(s)
- Zahra Saeed Khan
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, 38000, Pakistan
| | - Muhammad Rizwan
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, 38000, Pakistan
| | - Muhammad Hafeez
- Department of Physics, University of Management & Technology, Johar Town Lahore, Pakistan
| | - Shafaqat Ali
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, 38000, Pakistan
- Department of Biological Sciences and Technology, China Medical University (CMU), Taichung, Taiwan
| | - Muhammad Adrees
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, 38000, Pakistan.
| | - Muhammad Farooq Qayyum
- Department of Soil Science, Faculty of Agricultural Sciences & Technology, Bahauddin Zakariya University, Multan, Pakistan
| | - Sofia Khalid
- Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, Pakistan
| | - Muhammad Zia Ur Rehman
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, 38040, Pakistan
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105
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Hu W, Gao D, Wu H, Liu J, Zhang C, Wang J, Jiang Z, Liu Y, Li D, Zhang Y, Lu C. Genome-wide association mapping revealed syntenic loci QFhb-4AL and QFhb-5DL for Fusarium head blight resistance in common wheat (Triticum aestivum L.). BMC PLANT BIOLOGY 2020; 20:29. [PMID: 31959107 PMCID: PMC6971946 DOI: 10.1186/s12870-019-2177-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 11/29/2019] [Indexed: 05/05/2023]
Abstract
BACKGROUND Fusarium head blight (FHB), primarily caused by Fusarium graminearum, is a major threat to wheat production and food security worldwide. Breeding stably and durably resistant cultivars is the most effective approach for managing and controlling the disease. The success of FHB resistance breeding relies on identification of an effective resistant germplasm. We conducted a genome-wide association study (GWAS) using the high-density wheat 90 K single nucleotide polymorphism (SNP) assays to better understand the genetic basis of FHB resistance in natural population and identify associated molecular markers. RESULTS The resistance to FHB fungal spread along the rachis (Type II resistance) was evaluated on 171 wheat cultivars in the 2016-2017 (abbr. as 2017) and 2017-2018 (abbr. as 2018) growing seasons. Using Illumina Infinum iSelect 90 K SNP genotyping data, a genome-wide association study (GWAS) identified 26 loci (88 marker-trait associations), which explained 6.65-14.18% of the phenotypic variances. The associated loci distributed across all chromosomes except 2D, 6A, 6D and 7D, with those on chromosomes 1B, 4A, 5D and 7A being detected in both years. New loci for Type II resistance were found on syntenic genomic regions of chromsome 4AL (QFhb-4AL, 621.85-622.24 Mb) and chromosome 5DL (QFhb-5DL, 546.09-547.27 Mb) which showed high collinearity in gene content and order. SNP markers wsnp_JD_c4438_5568170 and wsnp_CAP11_c209_198467 of 5D, reported previously linked to a soil-borne wheat mosaic virus (SBWMV) resistance gene, were also associated with FHB resistance in this study. CONCLUSION The syntenic FHB resistant loci and associated SNP markers identified in this study are valuable for FHB resistance breeding via marker-assisted selection.
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Affiliation(s)
- Wenjing Hu
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou, 45002, Henan, China
| | - Derong Gao
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou, China
| | - Hongya Wu
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou, China
| | - Jian Liu
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China
| | - Chunmei Zhang
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou, China
| | - Junchan Wang
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China
| | - Zhengning Jiang
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China
| | - Yeyu Liu
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China
| | - Dongsheng Li
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China
| | - Yong Zhang
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China.
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China.
| | - Chengbin Lu
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China.
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China.
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou, China.
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106
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Prediction of Winter Wheat Yield Based on Multi-Source Data and Machine Learning in China. REMOTE SENSING 2020. [DOI: 10.3390/rs12020236] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Wheat is one of the main crops in China, and crop yield prediction is important for regional trade and national food security. There are increasing concerns with respect to how to integrate multi-source data and employ machine learning techniques to establish a simple, timely, and accurate crop yield prediction model at an administrative unit. Many previous studies were mainly focused on the whole crop growth period through expensive manual surveys, remote sensing, or climate data. However, the effect of selecting different time window on yield prediction was still unknown. Thus, we separated the whole growth period into four time windows and assessed their corresponding predictive ability by taking the major winter wheat production regions of China as an example in the study. Firstly we developed a modeling framework to integrate climate data, remote sensing data and soil data to predict winter wheat yield based on the Google Earth Engine (GEE) platform. The results show that the models can accurately predict yield 1~2 months before the harvesting dates at the county level in China with an R2 > 0.75 and yield error less than 10%. Support vector machine (SVM), Gaussian process regression (GPR), and random forest (RF) represent the top three best methods for predicting yields among the eight typical machine learning models tested in this study. In addition, we also found that different agricultural zones and temporal training settings affect prediction accuracy. The three models perform better as more winter wheat growing season information becomes available. Our findings highlight a potentially powerful tool to predict yield using multiple-source data and machine learning in other regions and for crops.
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107
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Li Q, Pan Z, Gao Y, Li T, Liang J, Zhang Z, Zhang H, Deng G, Long H, Yu M. Quantitative Trait Locus (QTLs) Mapping for Quality Traits of Wheat Based on High Density Genetic Map Combined With Bulked Segregant Analysis RNA-seq (BSR-Seq) Indicates That the Basic 7S Globulin Gene Is Related to Falling Number. FRONTIERS IN PLANT SCIENCE 2020; 11:600788. [PMID: 33424899 PMCID: PMC7793810 DOI: 10.3389/fpls.2020.600788] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 11/11/2020] [Indexed: 05/14/2023]
Abstract
Numerous quantitative trait loci (QTLs) have been identified for wheat quality; however, most are confined to low-density genetic maps. In this study, based on specific-locus amplified fragment sequencing (SLAF-seq), a high-density genetic map was constructed with 193 recombinant inbred lines derived from Chuanmai 42 and Chuanmai 39. In total, 30 QTLs with phenotypic variance explained (PVE) up to 47.99% were identified for falling number (FN), grain protein content (GPC), grain hardness (GH), and starch pasting properties across three environments. Five NAM genes closely adjacent to QGPC.cib-4A probably have effects on GPC. QGH.cib-5D was the only one detected for GH with high PVE of 33.31-47.99% across the three environments and was assumed to be related to the nearest pina-D1 and pinb-D1genes. Three QTLs were identified for FN in at least two environments, of which QFN.cib-3D had relatively higher PVE of 16.58-25.74%. The positive effect of QFN.cib-3D for high FN was verified in a double-haploid population derived from Chuanmai 42 × Kechengmai 4. The combination of these QTLs has a considerable effect on increasing FN. The transcript levels of Basic 7S globulin and Basic 7S globulin 2 in QFN.cib-3D were significantly different between low FN and high FN bulks, as observed through bulk segregant RNA-seq (BSR). These QTLs and candidate genes based on the high-density genetic map would be beneficial for further understanding of the genetic mechanism of quality traits and molecular breeding of wheat.
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Affiliation(s)
- Qiao Li
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Zhifen Pan
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
- *Correspondence: Zhifen Pan, ; orcid.org/0000-0002-1692-5425
| | - Yuan Gao
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Tao Li
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Junjun Liang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Zijin Zhang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Haili Zhang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Guangbing Deng
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Hai Long
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Maoqun Yu
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
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108
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Complex relationship between DNA methylation and gene expression due to Lr28 in wheat-leaf rust pathosystem. Mol Biol Rep 2019; 47:1339-1360. [DOI: 10.1007/s11033-019-05236-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 11/08/2019] [Accepted: 12/07/2019] [Indexed: 11/26/2022]
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109
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Rahimi Y, Bihamta MR, Taleei A, Alipour H, Ingvarsson PK. Genome-wide association study of agronomic traits in bread wheat reveals novel putative alleles for future breeding programs. BMC PLANT BIOLOGY 2019; 19:541. [PMID: 31805861 PMCID: PMC6896361 DOI: 10.1186/s12870-019-2165-4] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 11/26/2019] [Indexed: 05/22/2023]
Abstract
BACKGROUND Identification of loci for agronomic traits and characterization of their genetic architecture are crucial in marker-assisted selection (MAS). Genome-wide association studies (GWAS) have increasingly been used as potent tools in identifying marker-trait associations (MTAs). The introduction of new adaptive alleles in the diverse genetic backgrounds may help to improve grain yield of old or newly developed varieties of wheat to balance supply and demand throughout the world. Landraces collected from different climate zones can be an invaluable resource for such adaptive alleles. RESULTS GWAS was performed using a collection of 298 Iranian bread wheat varieties and landraces to explore the genetic basis of agronomic traits during 2016-2018 cropping seasons under normal (well-watered) and stressed (rain-fed) conditions. A high-quality genotyping by sequencing (GBS) dataset was obtained using either all original single nucleotide polymorphism (SNP, 10938 SNPs) or with additional imputation (46,862 SNPs) based on W7984 reference genome. The results confirm that the B genome carries the highest number of significant marker pairs in both varieties (49,880, 27.37%) and landraces (55,086, 28.99%). The strongest linkage disequilibrium (LD) between pairs of markers was observed on chromosome 2D (0.296). LD decay was lower in the D genome, compared to the A and B genomes. Association mapping under two tested environments yielded a total of 313 and 394 significant (-log10 P >3) MTAs for the original and imputed SNP data sets, respectively. Gene ontology results showed that 27 and 27.5% of MTAs of SNPs in the original set were located in protein-coding regions for well-watered and rain-fed conditions, respectively. While, for the imputed data set 22.6 and 16.6% of MTAs represented in protein-coding genes for the well-watered and rain-fed conditions, respectively. CONCLUSIONS Our finding suggests that Iranian bread wheat landraces harbor valuable alleles that are adaptive under drought stress conditions. MTAs located within coding genes can be utilized in genome-based breeding of new wheat varieties. Although imputation of missing data increased the number of MTAs, the fraction of these MTAs located in coding genes were decreased across the different sub-genomes.
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Affiliation(s)
- Yousef Rahimi
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Tehran, Karaj, Iran
- Linnean Centre for Plant Biology, Department of Plant Biology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Mohammad Reza Bihamta
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Tehran, Karaj, Iran.
| | - Alireza Taleei
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Tehran, Karaj, Iran
| | - Hadi Alipour
- Department of Plant Breeding and Biotechnology, Faculty of Agriculture, Urmia University, Urmia, Iran
| | - Pär K Ingvarsson
- Linnean Centre for Plant Biology, Department of Plant Biology, Swedish University of Agricultural Sciences, Uppsala, Sweden
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110
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Identification of Phenotypic and Physiological Markers of Salt Stress Tolerance in Durum Wheat (Triticum Durum Desf.) through Integrated Analyses. AGRONOMY-BASEL 2019. [DOI: 10.3390/agronomy9120844] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Salinity is one of the most important stresses that reduces plant growth and productivity in several parts of the world. Nine Tunisian durum wheat genotypes grown under hydroponic conditions were subjected to two levels of salt stress (100 and 170 mM NaCl) for 21 days. An integrative analysis revealing the impact of salinity on key phenotypic and physiological marker traits was then conducted. Principal component analysis grouped these traits into three different clusters corresponding to the absence of salt stress and the two levels of salt stress. This analysis also allowed the identification of genotypes exhibiting various levels of tolerance to NaCl. Among the nine genotypes of Triticum durum Desf., cultivar Om Rabiaa was the most tolerant whereas cultivar Mahmoudi genotype was the most sensitive. Following the multivariate analysis of the examined phenotypic and physiological traits, we found that shoot length, shoot fresh weight, leaf area, the whole-plant stable isotope ratios of nitrogen (δ15N), shoot ammonium and proline contents, and shoot glutamine synthetase activity could be used as markers for the selection of salt-tolerant wheat genotypes.
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112
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Zhou Z, Zhang B, Liu H, Liang X, Ma W, Shi Z, Yang S. Zinc effects on cadmium toxicity in two wheat varieties (Triticum aestivum L.) differing in grain cadmium accumulation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 183:109562. [PMID: 31437726 DOI: 10.1016/j.ecoenv.2019.109562] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 08/07/2019] [Accepted: 08/11/2019] [Indexed: 05/27/2023]
Abstract
Presence of cadmium (Cd) in food poses serious risks to human health. Understanding the effects of zinc (Zn) on Cd absorption by crops could help provide a theoretical basis for the treatment with Zn on contaminated soils. In this study, two wheat varieties, differing in grain-Cd accumulation ability (L979, a Cd low-accumulation variety, and H27, a high-accumulation variety) were selected to investigate the effect of Zn addition on Cd toxicity. Cd was applied to nutrient solutions at 0 and 10 μM, and added Zn were 0, 50 and 100 μM. Zn supplements alleviated decreases in biomass induced by Cd toxicity for both varieties, and both varieties had different reduced concentrations of Cd in their shoots. Application of 50 μM Zn to H27 resulted in a 17% decrease in Cd concentrations. When treated with 100 μM Zn, only L979 showed a reduction in Cd concentration. The higher proportion of Cd in the soluble fraction was found in L979. In addition, ion-selective scanning at the root-surface indicated that Zn supplements reduced net root Cd2+ flux by 55% for L979, and 69% for H27. These mitigating effects of Zn in both varieties involved mechanisms related to photosynthesis, root growth, and antioxidant production. Additionally, both Zn available in the medium and absorbed in plant tissue causes antagonistic effects on Cd absorption for wheat. It seemed that vacuolar compartmentation could contribute Cd detoxification especially for low accumulation variety.
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Affiliation(s)
- Zhen Zhou
- College of Resources and Environmental Sciences, Henan Agricultural University, Zhengzhou, 450002, PR China
| | - Biao Zhang
- College of Resources and Environmental Sciences, Henan Agricultural University, Zhengzhou, 450002, PR China.
| | - Haitao Liu
- College of Resources and Environmental Sciences, Henan Agricultural University, Zhengzhou, 450002, PR China
| | - Xiaodong Liang
- College of Resources and Environmental Sciences, Henan Agricultural University, Zhengzhou, 450002, PR China
| | - Wenlian Ma
- College of Resources and Environmental Sciences, Henan Agricultural University, Zhengzhou, 450002, PR China
| | - Zhenya Shi
- College of Resources and Environmental Sciences, Henan Agricultural University, Zhengzhou, 450002, PR China
| | - Suqin Yang
- College of Resources and Environmental Sciences, Henan Agricultural University, Zhengzhou, 450002, PR China.
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Hu X, Carver BF, Powers C, Yan L, Zhu L, Chen C. Effectiveness of Genomic Selection by Response to Selection for Winter Wheat Variety Improvement. THE PLANT GENOME 2019; 12:1-15. [PMID: 33016592 DOI: 10.3835/plantgenome2018.11.0090] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 03/11/2019] [Indexed: 06/11/2023]
Abstract
Prediction performance for winter wheat grain yield and end-use quality traits. Prediction accuracies evaluated by cross-validations are significantly overestimated. Nonparametric algorithms outperform the parametric alternatives in cross-year predictions. Strategically designing training population improves response to selection. Response to selection varies across growing seasons and environments. Considering the practicality of applying genomic selection (GS) in the line development stage of a hard red winter (HRW) wheat (Triticum aestivum L.) variety development program (VDP), the effectiveness of GS was evaluated by prediction accuracy and by the response to selection across field seasons that demonstrated challenges for crop improvement under significant climate variability. Important breeding targets for wheat improvement in the southern Great Plains of the United States, including grain yield, kernel weight, wheat protein content, and sodium dodecyl sulfate (SDS) sedimentation volume as a rapid test for predicting bread-making quality, were used to estimate the effectiveness of GS across harvest years from 2014 (drought) to 2016 (normal). In general, nonparametric algorithms reproducing kernel Hilbert space (RKHS) and random forest (RF) produced higher accuracies in both same-year cross-validations (CVs) and cross-year predictions for the purpose of line selection. Further, the stability of GS performance was greatest for SDS sedimentation volume but least for wheat protein content. To ensure long-term genetic gain, our study on selection response suggested that across this sample of environmental variability, and though there are cases where phenotypic selection (PS) might be still preferred, training conducted under drought or in suboptimal conditions could provide an encouraging prediction outcome when selection decisions were made in normal conditions. However, it is not advisable to use training information collected from a normal season to predict trait performance under drought conditions. Finally, the superiority of response to selection was most evident if the training population (TP) can be optimized.
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Affiliation(s)
- Xiaowei Hu
- Dep. of Statistics, Oklahoma State Univ., 301 MSCS, Stillwater, OK, 74078
| | - Brett F Carver
- Dep. of Plant and Soil Sciences, Oklahoma State Univ., 371 Agriculture Hall, Stillwater, OK, 74078
| | - Carol Powers
- Dep. of Plant and Soil Sciences, Oklahoma State Univ., 371 Agriculture Hall, Stillwater, OK, 74078
| | - Liuling Yan
- Dep. of Plant and Soil Sciences, Oklahoma State Univ., 371 Agriculture Hall, Stillwater, OK, 74078
| | - Lan Zhu
- Dep. of Statistics, Oklahoma State Univ., 301 MSCS, Stillwater, OK, 74078
| | - Charles Chen
- Dep. of Biochemistry and Molecular Biology, Oklahoma State Univ., 246 Nobel Research Center, Stillwater, OK, 74078
- Dep. of Plant and Soil Sciences, Oklahoma State Univ., 371 Agriculture Hall, Stillwater, OK, 74078
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114
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Xu D, Wen W, Fu L, Li F, Li J, Xie L, Xia X, Ni Z, He Z, Cao S. Genetic dissection of a major QTL for kernel weight spanning the Rht-B1 locus in bread wheat. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2019; 132:3191-3200. [PMID: 31515582 DOI: 10.1007/s00122-019-03418-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 07/28/2019] [Accepted: 08/27/2019] [Indexed: 05/18/2023]
Abstract
Genetic dissection uncovered a major QTL QTKW.caas-4BS corresponding with a 483 kb deletion that included genes ZnF, EamA and Rht-B1. This deletion was associated with increased grain weight and semi-dwarf phenotype. Previous studies identified quantitative trait loci (QTL) for thousand kernel weight (TKW) in the region spanning the Rht-B1 locus in wheat (Triticum aestivum L.). We recently mapped a major QTL QTKW.caas-4BS for TKW spanning the Rht-B1 locus in a recombinant inbred line (RIL) population derived from Doumai/Shi 4185 using the wheat 90K array. The allele from Doumai at QTKW.caas-4BS significantly increased TKW and kernel number per spike, and conferred semi-dwarf trait, which was beneficial to improve grain yield without a penalty to lodging. To further dissect QTKW.caas-4BS, we firstly re-investigated the genotypes and phenotypes of the RILs and confirmed the QTL using cleaved amplified polymorphic sequence (CAPS) markers developed from flanking SNP markers IWA102 and IWB54814. The target sequences of the CAPS markers were used as queries to BLAST the wheat reference genome RefSeq v1.0 and hit an approximate 10.4 Mb genomic region. Based on genomic mining and SNP loci from the wheat 660K SNP array in the above genomic region, we developed eight new markers and narrowed QTKW.caas-4BS to a genetic interval of 1.5 cM. A 483 kb deletion in Doumai corresponded with QTKW.caas-4BS genetically, including three genes ZnF, EamA and Rht-B1. The other 15 genes with either differential expressions and/or sequence variations between parents were also potential candidate genes for QTKW.caas-4BS. The findings not only provide a toolkit for marker-assisted selection of QTKW.caas-4BS but also defined candidate genes for further functional analysis.
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Affiliation(s)
- Dengan Xu
- Institute of Crop Science, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street, Beijing, 100081, China
- Department of Plant Genetics & Breeding/State Key Laboratory for Agrobiotechnology, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100094, China
| | - Weie Wen
- Institute of Crop Science, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street, Beijing, 100081, China
| | - Luping Fu
- Institute of Crop Science, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street, Beijing, 100081, China
| | - Faji Li
- Institute of Crop Science, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street, Beijing, 100081, China
| | - Jihu Li
- Institute of Crop Science, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street, Beijing, 100081, China
| | - Li Xie
- Institute of Crop Science, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street, Beijing, 100081, China
| | - Xianchun Xia
- Institute of Crop Science, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street, Beijing, 100081, China
| | - Zhongfu Ni
- Department of Plant Genetics & Breeding/State Key Laboratory for Agrobiotechnology, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100094, China
| | - Zhonghu He
- Institute of Crop Science, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street, Beijing, 100081, China.
| | - Shuanghe Cao
- Institute of Crop Science, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street, Beijing, 100081, China.
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115
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Improving grain yield, stress resilience and quality of bread wheat using large-scale genomics. Nat Genet 2019; 51:1530-1539. [DOI: 10.1038/s41588-019-0496-6] [Citation(s) in RCA: 126] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 08/13/2019] [Indexed: 01/11/2023]
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116
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Khan ZS, Rizwan M, Hafeez M, Ali S, Javed MR, Adrees M. The accumulation of cadmium in wheat (Triticum aestivum) as influenced by zinc oxide nanoparticles and soil moisture conditions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:19859-19870. [PMID: 31090010 DOI: 10.1007/s11356-019-05333-5] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Accepted: 04/30/2019] [Indexed: 05/23/2023]
Abstract
Both cadmium (Cd) contamination in agricultural soils and drought stress pose a serious problem for crop quality and human health. Owing to the specific physical and chemical characteristics, zinc oxide (ZnO) nanoparticles (NPs) can be used in agriculture as a nanofertilizer but their impact on Cd accumulation in wheat (Triticum aestivum) grains under normal and limited water conditions remains insufficient. In this study, the efficiency of ZnO NPs on Cd intake by wheat was investigated under normal and water-limited conditions grown in Cd-contaminated soil for 125 days after seed sowing. The lower biomass and higher oxidative stress were observed in the tissues of the control and drought stress further decreased the plant biomass and caused oxidative stress. Zinc oxide NP treatments increased the tissue dry weight and minimized the oxidative stress either Cd stress alone or combined with drought. Drought stress enhanced the Cd contents in wheat tissues and grains, while ZnO NPs significantly reduced the Cd accumulation in tissues and grains by reducing the soil bioavailable Cd and its accumulation by roots. These findings depicted that NP application to contaminated soils can promote wheat productivity and effectively alleviate soil Cd contamination either alone or under water-limited conditions. The baseline data demonstrated in this study provide insights that pave the way towards safer wheat production under combined drought and metal stress. However, the application of NPs at field levels with numerous crops and climatic conditions needs to be investigated before final recommendation.
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Affiliation(s)
- Zahra Saeed Khan
- Department of Environmental Sciences and Engineering, Government College University, Allama Iqbal Road, Faisalabad, 38000, Pakistan
| | - Muhammad Rizwan
- Department of Environmental Sciences and Engineering, Government College University, Allama Iqbal Road, Faisalabad, 38000, Pakistan
| | - Muhammad Hafeez
- Department of Physics, University of Management & Technology, Johar Town, Lahore, Pakistan
| | - Shafaqat Ali
- Department of Environmental Sciences and Engineering, Government College University, Allama Iqbal Road, Faisalabad, 38000, Pakistan
| | - Muhammad Rizwan Javed
- Department of Bioinformatics & Biotechnology, Government College University, Allama Iqbal Road, Faisalabad, 38000, Pakistan
| | - Muhammad Adrees
- Department of Environmental Sciences and Engineering, Government College University, Allama Iqbal Road, Faisalabad, 38000, Pakistan.
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117
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Brewster C, Hayes F, Fenner N. Ozone Tolerance Found in Aegilops tauschii and Primary Synthetic Hexaploid Wheat. PLANTS (BASEL, SWITZERLAND) 2019; 8:E195. [PMID: 31261799 PMCID: PMC6681361 DOI: 10.3390/plants8070195] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 06/21/2019] [Accepted: 06/25/2019] [Indexed: 11/16/2022]
Abstract
Modern wheat cultivars are increasingly sensitive to ground level ozone, with 7-10% mean yield reductions in the northern hemisphere. In this study, three of the genome donors of bread wheat, Triticum urartu (AA), T. dicoccoides (AABB), and Aegilops tauschii (DD) along with a modern wheat cultivar (T. aestivum 'Skyfall'), a 1970s cultivar (T. aestivum 'Maris Dove'), and a line of primary Synthetic Hexaploid Wheat were grown in 6 L pots of sandy loam soil in solardomes (Bangor, North Wales) and exposed to low (30 ppb), medium (55 ppb), and high (110 ppb) levels of ozone over 3 months. Measurements were made at harvest of shoot biomass and grain yield. Ae. tauschii appeared ozone tolerant with no significant effects of ozone on shoot biomass, seed head biomass, or 1000 grain + husk weight even under high ozone levels. In comparison, T. urartu had a significant reduction in 1000 grain + husk weight, especially under high ozone (-26%). The older cultivar, 'Maris Dove', had a significant reduction in seed head biomass (-9%) and 1000 grain weight (-11%) but was less sensitive than the more recent cultivar 'Skyfall', which had a highly significant reduction in its seed head biomass (-21%) and 1000 grain weight (-27%) under high ozone. Notably, the line of primary Synthetic Hexaploid Wheat was ozone tolerant, with no effect on total seed head biomass (-1%) and only a 5% reduction in 1000 grain weight under high ozone levels. The potential use of synthetic wheat in breeding ozone tolerant wheat is discussed.
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Affiliation(s)
- Clare Brewster
- Centre for Ecology & Hydrology, Environment Centre Wales, Bangor LL57 2UW, UK.
- School of Natural Sciences, Bangor University, Bangor LL57 2UW, UK.
| | - Felicity Hayes
- Centre for Ecology & Hydrology, Environment Centre Wales, Bangor LL57 2UW, UK
| | - Nathalie Fenner
- School of Natural Sciences, Bangor University, Bangor LL57 2UW, UK
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118
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Khobra R, Sareen S, Meena BK, Kumar A, Tiwari V, Singh GP. Exploring the traits for lodging tolerance in wheat genotypes: a review. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2019; 25:589-600. [PMID: 31168225 PMCID: PMC6522606 DOI: 10.1007/s12298-018-0629-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 11/02/2018] [Accepted: 11/20/2018] [Indexed: 05/23/2023]
Abstract
The rising population entails enhancement in wheat productivity to ensure substantial food supply which often get hindered by various biotic and abiotic stresses. Lodging, due to rain and high velocity wind causes significant economic and yield losses in cereals. Hence, lodging is emerging as a major hurdle to achieve the required yield targets. Various morphological, biochemical, anatomical and genetic traits contribute to produce a plant competent enough to bear lodging stress. Hence, in this review, we intend to elaborate the cause and impact relationship of lodging and tried to link lodging tolerance traits to field practices to minimize the losses. Because of the complex nature of lodging phenomenon, it is still obscure to identify best correlated traits to screen genotype in breeding programmes. However, the genotypes with best correlated traits like plant height, culm wall thickness should be introduced/selected in breeding programmes to inculcate lodging tolerance in a high yielding variety as in recent era lodging tolerance is a key factor to enhance productivity and farmer's income as well.
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Affiliation(s)
- Rinki Khobra
- ICAR-Indian Institute of Wheat and Barley Research, Karnal, Haryana 132001 India
| | - Sindhu Sareen
- ICAR-Indian Institute of Wheat and Barley Research, Karnal, Haryana 132001 India
| | - Braj Kishor Meena
- ICAR-Indian Institute of Wheat and Barley Research, Karnal, Haryana 132001 India
| | - Arvind Kumar
- ICAR-Indian Institute of Wheat and Barley Research, Karnal, Haryana 132001 India
| | - Vinod Tiwari
- ICAR-Indian Institute of Wheat and Barley Research, Karnal, Haryana 132001 India
| | - G. P. Singh
- ICAR-Indian Institute of Wheat and Barley Research, Karnal, Haryana 132001 India
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119
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Specificity of expression of TaCKX family genes in developing plants of wheat and their co-operation within and among organs. PLoS One 2019; 14:e0214239. [PMID: 30969991 PMCID: PMC6457499 DOI: 10.1371/journal.pone.0214239] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 03/08/2019] [Indexed: 12/20/2022] Open
Abstract
Multigene families of CKX genes encode cytokinin oxidase/dehydrogenase proteins (CKX), which regulate cytokinin content in organs of developing plants. It has already been documented that some of them play important roles in plant productivity. The presented research is the first step of comprehensive characterization of the bread wheat TaCKX gene family with the goal to select genes determining yield-related traits. The specificity of expression patterns of fifteen formerly annotated members of the TaCKX family was tested in different organs during wheat development. Based on this, the genes were assigned to four groups: TaCKX10, TaCKX5 and TaCKX4, highly specific to leaves; TaCKX3, TaCKX6 and TaCKX11, expressed in various levels through all the organs tested; TaCKX1, TaCKX2.3, TaCKX2.2, TaCKX2.1, TaCKX2.4 and TaCKX2.5 specific to developing spikes and inflorescences; TaCKX9, TaCKX8 and TaCKX7, highly specific to roots. Amplification products of tested genes were mapped to the chromosomes of the A, B or D genome using T. aestivum Ensembl Plants. Based on analysis of TaCKX transcripts as well as encoded amino acids in T. aestivum and Hordeum vulgare the number of CKX genes in wheat was limited to 11 and new numbering of selected TaCKX genes was proposed. Moreover, we found that there were developmental differences in expression of TaCKX in the first and the second spike and expression of some of the genes was daily time dependent. A very high and significant correlation was found between expression levels of TaCKX7 and TaCKX9, genes specific to seedling roots, TaCKX1, TaCKX2.1 and TaCKX2.2, specific to developing spikes, and the group of TaCKX3, 4, 5, 6, 10 and 11, highly expressed in leaves and other organs. The genes also co-operated among organs and were included in two groups representing younger or maturating stages of developing plants. The first group was represented by seedling roots, leaves from 4-week old plants, inflorescences and 0 DAP spikes; the second by developing spikes, 0 DAP, 7 DAP and 14 DAP. The key genes which might determine yield-related traits are indicated and their possible roles in breeding strategies are discussed.
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120
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Hussain A, Rizwan M, Ali Q, Ali S. Seed priming with silicon nanoparticles improved the biomass and yield while reduced the oxidative stress and cadmium concentration in wheat grains. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:7579-7588. [PMID: 30661166 DOI: 10.1007/s11356-019-04210-5] [Citation(s) in RCA: 138] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 01/08/2019] [Indexed: 05/03/2023]
Abstract
Cadmium (Cd) is among the non-essential elements for the growth of crops while silicon (Si) is a beneficial element for plant growth. There is little evidence regarding the use of silicon nanoparticles (Si NPs) on the reduction of Cd accumulation in crops especially wheat. The present study determined the impact of seed priming with Si NPs on Cd-induced responses in wheat in terms of growth, yield, photosynthesis, oxidative stress, and Si and Cd accumulation in wheat. Seed priming was done by different levels of Si NPs (0, 300, 600, 900, 1200 mg/L) for 24 h by providing continuous aeration. Afterwards, seeds were sown in soil contaminated with Cd. The results depicted that Si NPs positively affected the wheat growth and chlorophyll contents over the control. The Si NPs diminished the oxidative stress and positively affected the antioxidant enzyme activity. The Si NPs decreased the Cd concentrations in wheat, especially in grains, and increased the Si concentrations in plants. The Si NPs reduced the Cd contents by 10-52% in shoot, by 11-60% in roots, and by 12-75% in grains as compared with respective controls. The study suggested that the use of Si NPs may be a tool for reducing the Cd toxicity in wheat and declining its concentration in grains. Thus, Si NPs application by seed priming method might be helpful in increasing plants biomass and yield while reducing the oxidative stress and Cd uptake in wheat grains.
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Affiliation(s)
- Afzal Hussain
- Department of Environmental Sciences and Engineering, Government College University, Allama Iqbal Road, Faisalabad, 38000, Pakistan
| | - Muhammad Rizwan
- Department of Environmental Sciences and Engineering, Government College University, Allama Iqbal Road, Faisalabad, 38000, Pakistan
| | - Qasim Ali
- Department of Botany, Government College University, Allama Iqbal Road, Faisalabad, 38000, Pakistan
| | - Shafaqat Ali
- Department of Environmental Sciences and Engineering, Government College University, Allama Iqbal Road, Faisalabad, 38000, Pakistan.
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121
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Wang Y, Qiu L, Song Q, Wang S, Wang Y, Ge Y. Root Proteomics Reveals the Effects of Wood Vinegar on Wheat Growth and Subsequent Tolerance to Drought Stress. Int J Mol Sci 2019; 20:ijms20040943. [PMID: 30795585 PMCID: PMC6413028 DOI: 10.3390/ijms20040943] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 02/19/2019] [Indexed: 12/16/2022] Open
Abstract
Wood vinegar (WV) or pyroligneous acid (PA) is a reddish-brown liquid created during the dry distillation of biomass, a process called pyrolysis. WV contains important biologically active components, which can enhance plant growth and tolerance to drought stress. However, its mechanism of action remains unknown. Our results after presoaking wheat seeds with various concentrations of WV indicate that a 1:900 WV concentration can significantly enhance growth. To investigate the response of wheat roots to drought stress, we compared quantitative proteomic profiles in the roots of wheat plants grown from seeds either presoaked (treatment) or non-presoaked (control) with WV. Our results indicated that the abscisic acid (ABA) content of wheat roots in the WV treatment was significantly increased. Reactive oxygen species (ROS) and malonaldehyde (MDA) levels roots were significantly lower than in the control treatment under drought stress, while the activity of major antioxidant enzymes was significantly increased. Two-dimensional electrophoresis (2D-PAGE) identified 138 differentially accumulated protein (DAP) spots representing 103 unique protein species responding to drought stress in wheat roots of the control and WV-treated groups. These DAPs are mostly involved in the stress response, carbohydrate metabolism, protein metabolism, and secondary metabolism. Proteome profiles showed the DAPs involved in carbohydrate metabolism, stress response, and secondary metabolism had increased accumulation in roots of the WV-treated groups. These findings suggest that the roots from wheat seeds presoaked with WV can initiate an early defense mechanism to mitigate drought stress. These results provide an explanation of how WV enhances the tolerance of wheat plants to drought stress.
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Affiliation(s)
- Yuying Wang
- College of Agronomy, Northwest A&F University, Yangling 712100, China.
- Northwest Research Center of Rural Renewable Energy, Exploitation and Utilization of Ministry of Agriculture, Northwest A&F University, Yangling 712100, China.
| | - Ling Qiu
- Northwest Research Center of Rural Renewable Energy, Exploitation and Utilization of Ministry of Agriculture, Northwest A&F University, Yangling 712100, China.
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, China.
| | - Qilu Song
- College of Agronomy, Northwest A&F University, Yangling 712100, China.
| | - Shuping Wang
- Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, College of Agronomy, Yangtze University, Jingzhou 434025, China.
| | - Yajun Wang
- Northwest Research Center of Rural Renewable Energy, Exploitation and Utilization of Ministry of Agriculture, Northwest A&F University, Yangling 712100, China.
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, China.
| | - Yihong Ge
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Science, Chengdu 610041, China.
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122
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Garcia M, Eckermann P, Haefele S, Satija S, Sznajder B, Timmins A, Baumann U, Wolters P, Mather DE, Fleury D. Genome-wide association mapping of grain yield in a diverse collection of spring wheat (Triticum aestivum L.) evaluated in southern Australia. PLoS One 2019; 14:e0211730. [PMID: 30716107 PMCID: PMC6361508 DOI: 10.1371/journal.pone.0211730] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 01/19/2019] [Indexed: 02/07/2023] Open
Abstract
Wheat landraces, wild relatives and other 'exotic' accessions are important sources of new favorable alleles. The use of those exotic alleles is facilitated by having access to information on the association of specific genomic regions with desirable traits. Here, we conducted a genome-wide association study (GWAS) using a wheat panel that includes landraces, synthetic hexaploids and other exotic wheat accessions to identify loci that contribute to increases in grain yield in southern Australia. The 568 accessions were grown in the field during the 2014 and 2015 seasons and measured for plant height, maturity, spike length, spike number, grain yield, plant biomass, HI and TGW. We used the 90K SNP array and two GWAS approaches (GAPIT and QTCAT) to identify loci associated with the different traits. We identified 17 loci with GAPIT and 25 with QTCAT. Ten of these loci were associated with known genes that are routinely employed in marker assisted selection such as Ppd-D1 for maturity and Rht-D1 for plant height and seven of those were detected with both methods. We identified one locus for yield per se in 2014 on chromosome 6B with QTCAT and three in 2015, on chromosomes 4B and 5A with GAPIT and 6B with QTCAT. The 6B loci corresponded to the same region in both years. The favorable haplotypes for yield at the 5A and 6B loci are widespread in Australian accessions with 112 out of 153 carrying the favorable haplotype at the 5A locus and 136 out of 146 carrying the favorable haplotype at the 6A locus, while the favorable haplotype at 4B is only present in 65 out of 149 Australian accessions. The low number of yield QTL in our study corroborate with other GWAS for yield in wheat, where most of the identified loci have very small effects.
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Affiliation(s)
- Melissa Garcia
- Australian Centre for Plant Functional Genomics and School of Agriculture, Food and Wine, Waite Research Institute, The University of Adelaide, Glen Osmond, SA, Australia
| | - Paul Eckermann
- Australian Centre for Plant Functional Genomics and School of Agriculture, Food and Wine, Waite Research Institute, The University of Adelaide, Glen Osmond, SA, Australia
| | - Stephan Haefele
- Australian Centre for Plant Functional Genomics and School of Agriculture, Food and Wine, Waite Research Institute, The University of Adelaide, Glen Osmond, SA, Australia
- Rothamsted Research, Harpenden, United Kingdom
| | - Sanjiv Satija
- Australian Centre for Plant Functional Genomics and School of Agriculture, Food and Wine, Waite Research Institute, The University of Adelaide, Glen Osmond, SA, Australia
| | - Beata Sznajder
- Australian Centre for Plant Functional Genomics and School of Agriculture, Food and Wine, Waite Research Institute, The University of Adelaide, Glen Osmond, SA, Australia
| | - Andy Timmins
- Australian Centre for Plant Functional Genomics and School of Agriculture, Food and Wine, Waite Research Institute, The University of Adelaide, Glen Osmond, SA, Australia
| | - Ute Baumann
- Australian Centre for Plant Functional Genomics and School of Agriculture, Food and Wine, Waite Research Institute, The University of Adelaide, Glen Osmond, SA, Australia
| | - Petra Wolters
- Corteva Agriscience, New Holland, PA, United States of America
| | - Diane E. Mather
- Australian Centre for Plant Functional Genomics and School of Agriculture, Food and Wine, Waite Research Institute, The University of Adelaide, Glen Osmond, SA, Australia
| | - Delphine Fleury
- Australian Centre for Plant Functional Genomics and School of Agriculture, Food and Wine, Waite Research Institute, The University of Adelaide, Glen Osmond, SA, Australia
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123
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Li T, Liu H, Mai C, Yu G, Li H, Meng L, Jian D, Yang L, Zhou Y, Zhang H, Li H. Variation in allelic frequencies at loci associated with kernel weight and their effects on kernel weight-related traits in winter wheat. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.cj.2018.08.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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124
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Juliana P, Montesinos-López OA, Crossa J, Mondal S, González Pérez L, Poland J, Huerta-Espino J, Crespo-Herrera L, Govindan V, Dreisigacker S, Shrestha S, Pérez-Rodríguez P, Pinto Espinosa F, Singh RP. Integrating genomic-enabled prediction and high-throughput phenotyping in breeding for climate-resilient bread wheat. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2019; 132:177-194. [PMID: 30341493 PMCID: PMC6320358 DOI: 10.1007/s00122-018-3206-3] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 10/09/2018] [Indexed: 05/18/2023]
Abstract
Genomic selection and high-throughput phenotyping (HTP) are promising tools to accelerate breeding gains for high-yielding and climate-resilient wheat varieties. Hence, our objective was to evaluate them for predicting grain yield (GY) in drought-stressed (DS) and late-sown heat-stressed (HS) environments of the International maize and wheat improvement center's elite yield trial nurseries. We observed that the average genomic prediction accuracies using fivefold cross-validations were 0.50 and 0.51 in the DS and HS environments, respectively. However, when a different nursery/year was used to predict another nursery/year, the average genomic prediction accuracies in the DS and HS environments decreased to 0.18 and 0.23, respectively. While genomic predictions clearly outperformed pedigree-based predictions across nurseries, they were similar to pedigree-based predictions within nurseries due to small family sizes. In populations with some full-sibs in the training population, the genomic and pedigree-based prediction accuracies were on average 0.27 and 0.35 higher than the accuracies in populations with only one progeny per cross, indicating the importance of genetic relatedness between the training and validation populations for good predictions. We also evaluated the item-based collaborative filtering approach for multivariate prediction of GY using the green normalized difference vegetation index from HTP. This approach proved to be the best strategy for across-nursery predictions, with average accuracies of 0.56 and 0.62 in the DS and HS environments, respectively. We conclude that GY is a challenging trait for across-year predictions, but GS and HTP can be integrated in increasing the size of populations screened and evaluating unphenotyped large nurseries for stress-resilience within years.
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Affiliation(s)
- Philomin Juliana
- International Maize and Wheat Improvement Center (CIMMYT), Postal 6-641, 06600, Mexico, D.F., Mexico.
| | | | - José Crossa
- International Maize and Wheat Improvement Center (CIMMYT), Postal 6-641, 06600, Mexico, D.F., Mexico
| | - Suchismita Mondal
- International Maize and Wheat Improvement Center (CIMMYT), Postal 6-641, 06600, Mexico, D.F., Mexico
| | - Lorena González Pérez
- International Maize and Wheat Improvement Center (CIMMYT), Postal 6-641, 06600, Mexico, D.F., Mexico
| | - Jesse Poland
- Department of Plant Pathology and Agronomy, Wheat Genetics Resource Center, Kansas State University, Manhattan, KS, 66506, USA
| | - Julio Huerta-Espino
- Campo Experimental Valle de México INIFAP, Chapingo, Edo. de México, 56230, Mexico
| | - Leonardo Crespo-Herrera
- International Maize and Wheat Improvement Center (CIMMYT), Postal 6-641, 06600, Mexico, D.F., Mexico
| | - Velu Govindan
- International Maize and Wheat Improvement Center (CIMMYT), Postal 6-641, 06600, Mexico, D.F., Mexico
| | - Susanne Dreisigacker
- International Maize and Wheat Improvement Center (CIMMYT), Postal 6-641, 06600, Mexico, D.F., Mexico
| | - Sandesh Shrestha
- Department of Plant Pathology and Agronomy, Wheat Genetics Resource Center, Kansas State University, Manhattan, KS, 66506, USA
| | | | - Francisco Pinto Espinosa
- International Maize and Wheat Improvement Center (CIMMYT), Postal 6-641, 06600, Mexico, D.F., Mexico
| | - Ravi P Singh
- International Maize and Wheat Improvement Center (CIMMYT), Postal 6-641, 06600, Mexico, D.F., Mexico.
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Pathak RK, Baunthiyal M, Pandey D, Kumar A. Augmentation of crop productivity through interventions of omics technologies in India: challenges and opportunities. 3 Biotech 2018; 8:454. [PMID: 30370195 PMCID: PMC6195494 DOI: 10.1007/s13205-018-1473-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 10/09/2018] [Indexed: 01/19/2023] Open
Abstract
With the continuous increase in the population of developing countries and decline of natural resources, there is an urgent need to qualitatively and quantitatively augment crop productivity by using new tools and technologies for improvement of agriculturally important traits. The new scientific and technological omics-based approaches have enabled us to deal with several issues and challenges faced by modern agricultural system and provided us novel opportunities for ensuring food and nutritional security. Recent developments in sequencing techniques have made available huge amount of genomic and transcriptomic data on model and cultivated crop plants including Arabidopsis thaliana, Oryza sativa, Triticum aestivum etc. The sequencing data along with other data generated through several omics platforms have significantly influenced the disciplines of crop sciences. Gene discovery and expression profiling-based technologies are offering enormous opportunities to the scientific community which can now apply marker-assisted selection technology to assess and enhance diversity in their collected germplasm, introgress essential traits from new sources and investigate genes that control key traits of crop plants. Utilization of omics science and technologies for crop productivity, protection and management has recently been receiving a lot of attention; the majority of the efforts have been put into signifying the possible applications of various omics technologies in crop plant sciences. This article highlights the background of challenges and opportunities for augmentation of crop productivity through interventions of omics technologies in India.
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Affiliation(s)
- Rajesh Kumar Pathak
- Department of Molecular Biology and Genetic Engineering, College of Basic Sciences and Humanities, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263145 India
- Department of Biotechnology, G. B. Pant Institute of Engineering and Technology, Pauri Garhwal, Uttarakhand 246194 India
| | - Mamta Baunthiyal
- Department of Biotechnology, G. B. Pant Institute of Engineering and Technology, Pauri Garhwal, Uttarakhand 246194 India
| | - Dinesh Pandey
- Department of Molecular Biology and Genetic Engineering, College of Basic Sciences and Humanities, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263145 India
| | - Anil Kumar
- Department of Molecular Biology and Genetic Engineering, College of Basic Sciences and Humanities, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263145 India
- Present Address: Rani Lakshmi Bai Central Agricultural University, Jhansi, Uttar Pradesh 284003 India
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Rempelos L, Almuayrifi AM, Baranski M, Tetard-Jones C, Eyre M, Shotton P, Cakmak I, Ozturk L, Cooper J, Volakakis N, Schmidt C, Sufar E, Wang J, Wilkinson A, Rosa EAS, Zhao B, Rose TJ, Leifert C, Bilsborrow P. Effects of Agronomic Management and Climate on Leaf Phenolic Profiles, Disease Severity, and Grain Yield in Organic and Conventional Wheat Production Systems. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:10369-10379. [PMID: 30095898 DOI: 10.1021/acs.jafc.8b02626] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Agricultural intensification over the last 40 years has increased cereal yields, but there is very limited information on the effects of intensification practices (e.g., nondiverse rotations, mineral NPK fertilizer, and pesticides) on crop health and quality. Results from the study reported here suggest that the use of mineral NPK fertilizers reduces phenolic acid and flavonoid concentrations in leaves and increases the susceptibility of wheat to lodging and powdery mildew, when compared to composted FYM inputs. In contrast, the use of herbicides, fungicides, and growth regulators reduces lodging and foliar disease severity but had no effect on phenolic acid and flavonoid concentrations. The use of composted FYM inputs also resulted in a significant grain yield reduction and not substantially reduced the severity of opportunistic pathogens such as Septoria, which remain a major yield limiting factor unless fungicides are used and/or more Septoria resistant varieties become available.
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Affiliation(s)
- Leonidas Rempelos
- School of Natural and Environmental Sciences , Newcastle University , Newcastle upon Tyne , Tyne and Wear , NE1 7RU , U.K
| | - Abujawad M Almuayrifi
- School of Natural and Environmental Sciences , Newcastle University , Newcastle upon Tyne , Tyne and Wear , NE1 7RU , U.K
- Laboratories Management & Environmental Research , Almadinah Regional Manuicipality , Medina , 2020 , Saudi Arabia
| | - Marcin Baranski
- School of Natural and Environmental Sciences , Newcastle University , Newcastle upon Tyne , Tyne and Wear , NE1 7RU , U.K
| | - Catherine Tetard-Jones
- School of Natural and Environmental Sciences , Newcastle University , Newcastle upon Tyne , Tyne and Wear , NE1 7RU , U.K
| | - Mick Eyre
- School of Natural and Environmental Sciences , Newcastle University , Newcastle upon Tyne , Tyne and Wear , NE1 7RU , U.K
| | - Peter Shotton
- School of Natural and Environmental Sciences , Newcastle University , Newcastle upon Tyne , Tyne and Wear , NE1 7RU , U.K
| | - Ismail Cakmak
- Faculty of Engineering and Natural Sciences , Sabanci University , 34956 Tuzla/Istanbul , Turkey
| | - Levent Ozturk
- Faculty of Engineering and Natural Sciences , Sabanci University , 34956 Tuzla/Istanbul , Turkey
| | - Julia Cooper
- School of Natural and Environmental Sciences , Newcastle University , Newcastle upon Tyne , Tyne and Wear , NE1 7RU , U.K
| | - Nikolaos Volakakis
- Geokomi plc, Agriculture Consultancy , P. O. Box 21, Sivas-Faistos , Crete GR 70200 , Greece
| | - Christoph Schmidt
- Department of Mycorrhizal Symbioses , Institute of Botany ASCR , 252 43 Průhonice-Chotobuz , Czech Republic
| | - Enas Sufar
- School of Natural and Environmental Sciences , Newcastle University , Newcastle upon Tyne , Tyne and Wear , NE1 7RU , U.K
| | - Juan Wang
- School of Natural and Environmental Sciences , Newcastle University , Newcastle upon Tyne , Tyne and Wear , NE1 7RU , U.K
| | - Andrew Wilkinson
- School of Natural and Environmental Sciences , Newcastle University , Newcastle upon Tyne , Tyne and Wear , NE1 7RU , U.K
- Gilchesters Organics , Gilchesters , Hawkwell, Northumberland , NE18 0QL , U.K
| | - Eduardo A S Rosa
- Centre for the Research and Technology of Agro-Environment and Biological Sciences , Universidade de Trás-os-Montes e Alto Douro (UTAD) , 5001-801 , Vila Real , Portugal
| | - Bingqiang Zhao
- Fertilizer and Fertilization Group, Institute of Agricultural Resources and Regional Planning (IARRP) , Chinese Academy of Agricultural Science (CAAS) , No. 12 Zhongguancun South St. , Haidian District, Beijing 100081 , P.R. China
| | - Terry J Rose
- Centre for Organics Research , Southern Cross University , Military Road , Lismore , New South Wales 2480 , Australia
| | - Carlo Leifert
- Centre for Organics Research , Southern Cross University , Military Road , Lismore , New South Wales 2480 , Australia
- Department of Clinical Medicine, Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine , University of Oslo , Sognsvannsveien 9, Domus Medica 0372 , Oslo , Norway
| | - Paul Bilsborrow
- School of Natural and Environmental Sciences , Newcastle University , Newcastle upon Tyne , Tyne and Wear , NE1 7RU , U.K
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Rehman MZU, Rizwan M, Hussain A, Saqib M, Ali S, Sohail MI, Shafiq M, Hafeez F. Alleviation of cadmium (Cd) toxicity and minimizing its uptake in wheat (Triticum aestivum) by using organic carbon sources in Cd-spiked soil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 241:557-565. [PMID: 29885626 DOI: 10.1016/j.envpol.2018.06.005] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 05/16/2018] [Accepted: 06/01/2018] [Indexed: 05/23/2023]
Abstract
Cadmium (Cd)-contamination of agricultural soils has been receiving attention worldwide due to its entry into food crops such as wheat (Triticum aestivum L.). Little is known regarding the use of organic carbon (OC) sources in alleviating Cd toxicity in cereals. The current experiment was aimed to study the effects of different OC sources on the Cd accumulation by wheat. A pot study was conducted to determine the effects of rice husk biochar (RHB), farmyard manure (FYM), and lignite (LT) either alone or in combination on crop growth, Cd bioavailability and health risk assessment. The results proved that the application of OC sources like RHB, FYM, and LT either alone or in combination were highly effective in enhancing the wheat growth and yield as well as in minimizing the phyto-available fraction of Cd and its transfer to edible tissue of wheat. The RHB was the most efficient source in enhancing the plant growth and reducing the Cd concentration in wheat tissues. RHB increased grain yield by 91% and decreased Cd concentration in shoot, roots, grains, and bioavailable fraction of Cd by 67, 69, 62.5, and 74% than control, respectively. The RHB reduced the daily Cd uptake and health risk index in adults in comparison to control. Overall, where un-amended soil resulted in diminished plant productivity, the application of other OC sources also significantly proved their potential to enhance the dry weight and grain yield, suggesting that these OC sources may be used aiming to minimize the Cd concentration in crops. However, there is still a need to explore the potential of different OC sources in combination with other frequently available amendments for their large scale implementation in metal-contaminated soils.
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Affiliation(s)
- Muhammad Zia Ur Rehman
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Muhammad Rizwan
- Department of Environmental Sciences and Engineering, Government College University, Allama Iqbal Road, 38000, Faisalabad, Pakistan.
| | | | - Muhammad Saqib
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Shafaqat Ali
- Department of Environmental Sciences and Engineering, Government College University, Allama Iqbal Road, 38000, Faisalabad, Pakistan
| | - Muhammad Irfan Sohail
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Mahnoor Shafiq
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Farhan Hafeez
- Department of Environmental Sciences, COMSATS Institute of Information Technology (CIIT), Abbottabad, Pakistan
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Rey E, Abrouk M, Keeble‐Gagnère G, Karafiátová M, Vrána J, Balzergue S, Soubigou‐Taconnat L, Brunaud V, Martin‐Magniette M, Endo TR, Bartoš J, Appels R, Doležel J. Transcriptome reprogramming due to the introduction of a barley telosome into bread wheat affects more barley genes than wheat. PLANT BIOTECHNOLOGY JOURNAL 2018; 16:1767-1777. [PMID: 29510004 PMCID: PMC6131412 DOI: 10.1111/pbi.12913] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 02/17/2018] [Accepted: 02/24/2018] [Indexed: 05/03/2023]
Abstract
Despite a long history, the production of useful alien introgression lines in wheat remains difficult mainly due to linkage drag and incomplete genetic compensation. In addition, little is known about the molecular mechanisms underlying the impact of foreign chromatin on plant phenotype. Here, a comparison of the transcriptomes of barley, wheat and a wheat-barley 7HL addition line allowed the transcriptional impact both on 7HL genes of a non-native genetic background and on the wheat gene complement as a result of the presence of 7HL to be assessed. Some 42% (389/923) of the 7HL genes assayed were differentially transcribed, which was the case for only 3% (960/35 301) of the wheat gene complement. The absence of any transcript in the addition line of a suite of chromosome 7A genes implied the presence of a 36 Mbp deletion at the distal end of the 7AL arm; this deletion was found to be in common across the full set of Chinese Spring/Betzes barley addition lines. The remaining differentially transcribed wheat genes were distributed across the whole genome. The up-regulated barley genes were mostly located in the proximal part of the 7HL arm, while the down-regulated ones were concentrated in the distal part; as a result, genes encoding basal cellular functions tended to be transcribed, while those encoding specific functions were suppressed. An insight has been gained into gene transcription in an alien introgression line, thereby providing a basis for understanding the interactions between wheat and exotic genes in introgression materials.
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Affiliation(s)
- Elodie Rey
- Institute of Experimental BotanyCentre of the Region Haná for Biotechnological and Agricultural ResearchOlomoucCzech Republic
| | - Michael Abrouk
- Institute of Experimental BotanyCentre of the Region Haná for Biotechnological and Agricultural ResearchOlomoucCzech Republic
| | - Gabriel Keeble‐Gagnère
- Agriculture Research VictoriaDepartment of Economic DevelopmentJobsTransport and ResourcesAgriBioBundooraVIC 3083Australia
| | - Miroslava Karafiátová
- Institute of Experimental BotanyCentre of the Region Haná for Biotechnological and Agricultural ResearchOlomoucCzech Republic
| | - Jan Vrána
- Institute of Experimental BotanyCentre of the Region Haná for Biotechnological and Agricultural ResearchOlomoucCzech Republic
| | - Sandrine Balzergue
- Institute of Plant Sciences Paris Saclay IPS2CNRSINRAUniversité Paris‐SudUniversité EvryUniversité Paris‐SaclayOrsayFrance
- Institute of Plant Sciences Paris‐Saclay IPS2Paris DiderotSorbonne Paris‐CitéOrsayFrance
- IRHSUniversité d'AngersINRAAGROCAMPUS‐OuestSFR4207 QUASAVUniversité Bretagne LoireBeaucouzéFrance
| | - Ludivine Soubigou‐Taconnat
- Institute of Plant Sciences Paris Saclay IPS2CNRSINRAUniversité Paris‐SudUniversité EvryUniversité Paris‐SaclayOrsayFrance
- Institute of Plant Sciences Paris‐Saclay IPS2Paris DiderotSorbonne Paris‐CitéOrsayFrance
| | - Véronique Brunaud
- Institute of Plant Sciences Paris Saclay IPS2CNRSINRAUniversité Paris‐SudUniversité EvryUniversité Paris‐SaclayOrsayFrance
- Institute of Plant Sciences Paris‐Saclay IPS2Paris DiderotSorbonne Paris‐CitéOrsayFrance
| | - Marie‐Laure Martin‐Magniette
- Institute of Plant Sciences Paris Saclay IPS2CNRSINRAUniversité Paris‐SudUniversité EvryUniversité Paris‐SaclayOrsayFrance
- Institute of Plant Sciences Paris‐Saclay IPS2Paris DiderotSorbonne Paris‐CitéOrsayFrance
- UMR MIA‐ParisAgroParisTechINRAUniversité Paris‐SaclayParisFrance
| | - Takashi R. Endo
- Department of Plant Life ScienceFaculty of AgricultureRyukoku UniversityShigaJapan
| | - Jan Bartoš
- Institute of Experimental BotanyCentre of the Region Haná for Biotechnological and Agricultural ResearchOlomoucCzech Republic
| | | | | | - Jaroslav Doležel
- Institute of Experimental BotanyCentre of the Region Haná for Biotechnological and Agricultural ResearchOlomoucCzech Republic
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129
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Zhang J, Gizaw SA, Bossolini E, Hegarty J, Howell T, Carter AH, Akhunov E, Dubcovsky J. 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 2018; 131:1741-1759. [PMID: 29767279 PMCID: PMC6061171 DOI: 10.1007/s00122-018-3111-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 05/07/2018] [Indexed: 05/04/2023]
Abstract
KEY MESSAGE 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 were not associated with differences in plant height or heading date. We detected significant correlations among traits and colocated QTL that were consistent with those correlations. Among those, grain yield and plant water status were negatively correlated in all environments, and six QTL for these traits were colocated or tightly linked (< 1 cM). QTL identified and validated in this study provide useful information for the improvement of fall-sown spring wheats under full and limited irrigation.
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Affiliation(s)
- Junli Zhang
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
| | - Shiferaw Abate Gizaw
- Department of Crop and Soil Sciences, Washington State University, Pullman, WA, 99164, USA
| | - Eligio Bossolini
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
| | - Joshua Hegarty
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
| | - Tyson Howell
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
| | - Arron H Carter
- Department of Crop and Soil Sciences, Washington State University, Pullman, WA, 99164, USA
| | - Eduard Akhunov
- Department of Plant Pathology, Kansas State University, Manhattan, KS, 66502, USA
| | - Jorge Dubcovsky
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA.
- Howard Hughes Medical Institute, Chevy Chase, MD, 20815, USA.
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130
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Skoracka A, Rector BG, Hein GL. The Interface Between Wheat and the Wheat Curl Mite, Aceria tosichella, the Primary Vector of Globally Important Viral Diseases. FRONTIERS IN PLANT SCIENCE 2018; 9:1098. [PMID: 30100916 PMCID: PMC6072864 DOI: 10.3389/fpls.2018.01098] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Accepted: 07/09/2018] [Indexed: 05/08/2023]
Abstract
Wheat production and sustainability are steadily threatened by pests and pathogens in both wealthy and developing countries. This review is focused on the wheat curl mite (WCM), Aceria tosichella, and its relationship with wheat. WCM is a major pest of wheat and other cereals and a vector of at least four damaging plant viruses (Wheat streak mosaic virus, High plains wheat mosaic virus, Brome streak mosaic virus, and Triticum mosaic virus). The WCM-virus pathosystem causes considerable yield losses worldwide and its severity increases significantly when mixed-virus infections occur. Chemical control strategies are largely ineffective because WCM occupies secluded niches on the plant, e.g., leaf sheaths or curled leaves in the whorl. The challenge of effectively managing this pest-virus complex is exacerbated by the existence of divergent WCM lineages that differ in host-colonization and virus-transmission abilities. We highlight research progress in mite ecology and virus epidemiology that affect management and development of cereal cultivars with WCM- and virus-resistance genes. We also address the challenge of avoiding both agronomically deleterious side effects and selection for field populations of WCM that can overcome these resistance genes. This report integrates the current state of knowledge of WCM-virus-plant interactions and addresses knowledge gaps regarding the mechanisms driving WCM infestation, viral epidemics, and plant responses. We discuss the potential application of molecular methods (e.g., transcriptomics, epigenetics, and whole-genome sequencing) to understand the chemical and cellular interface between the wheat plant and WCM-virus complexes.
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Affiliation(s)
- Anna Skoracka
- Population Ecology Lab, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
| | - Brian G. Rector
- Great Basin Rangelands Research Unit, United States Department of Agriculture – Agricultural Research Service, Reno, NV, United States
| | - Gary L. Hein
- Department of Entomology, University of Nebraska-Lincoln, Lincoln, NE, United States
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131
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Pandey B, Grover A, Sharma P. Dynamics of Dof domain-DNA interaction in wheat: Insights from atomistic simulations and free energy landscape. J Cell Biochem 2018; 119:8818-8829. [PMID: 30004133 DOI: 10.1002/jcb.27132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Accepted: 05/07/2018] [Indexed: 12/15/2022]
Abstract
DNA-binding one zinc finger protein (Dof) is a plant-specific transcription factor involved in numerous biological processes. In the current study, the plausible mechanism underlying Dof domain-DNA interaction in wheat was investigated using extensive molecular dynamics (MD) simulations analysis. We depicted that one key residue Lys29, possessing the ability to disturb the interaction between Dof domain-DNA upon substitution to Arg29. Frequent conformational changes were observed in Lys29Arg (K29R)-DNA complex during the entire MD simulation period, which significantly altered the interactions, thereby indicating the importance of Lys29 in complex stability. Principal component analysis and free energy landscape results also suggested strong affinity between wild-type Dof domain and DNA due to restricted atomic movement. Our study not only substantiates the structural and mechanistic insights of Dof transcription factor but also provides new avenues toward employment of these key amino acid residues in genetic engineering for development of abiotic stress tolerance crop plant.
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Affiliation(s)
- Bharati Pandey
- Plant Biotechnology Section, Crop Improvement Division, ICAR-Indian Institute of Wheat and Barley Research, Karnal, India
| | - Abhinav Grover
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
| | - Pradeep Sharma
- Plant Biotechnology Section, Crop Improvement Division, ICAR-Indian Institute of Wheat and Barley Research, Karnal, India
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132
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Extracellular Secretion of Phytase from Transgenic Wheat Roots Allows Utilization of Phytate for Enhanced Phosphorus Uptake. Mol Biotechnol 2018; 59:334-342. [PMID: 28667571 DOI: 10.1007/s12033-017-0020-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
A significant portion of organic phosphorus comprises of phytates which are not available to wheat for uptake. Hence for enabling wheat to utilize organic phosphorus in form of phytate, transgenic wheat expressing phytase from Aspergillus japonicus under barley root-specific promoter was developed. Transgenic events were initially screened via selection media containing BASTA, followed by PCR and BASTA leaf paint assay after hardening. Out of 138 successfully regenerated To events, only 12 had complete constructs and thus further analyzed. Positive T1 transgenic plants, grown in sand, exhibited 0.08-1.77, 0.02-0.67 and 0.44-2.14 fold increase in phytase activity in root extracts, intact roots and external root solution, respectively, after 4 weeks of phosphorus stress. Based on these results, T2 generation of four best transgenic events was further analyzed which showed up to 1.32, 56.89, and 15.40 fold increase in phytase activity in root extracts, intact roots and external root solution, respectively, while in case of real-time PCR, maximum fold increase of 19.8 in gene expression was observed. Transgenic lines showed 0.01-1.18 fold increase in phosphorus efficiency along with higher phosphorus content when supplied phytate or inorganic phosphorus than control plants. Thus, this transgenic wheat may aid in reducing fertilizer utilization and enhancing wheat yield.
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133
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Performance and Stability of Commercial Wheat Cultivars under Terminal Heat Stress. AGRONOMY-BASEL 2018. [DOI: 10.3390/agronomy8040037] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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134
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Hellemans T, Landschoot S, Dewitte K, Van Bockstaele F, Vermeir P, Eeckhout M, Haesaert G. Impact of Crop Husbandry Practices and Environmental Conditions on Wheat Composition and Quality: A Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:2491-2509. [PMID: 29488761 DOI: 10.1021/acs.jafc.7b05450] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The increasing interest in the production of bread wheat ( Triticum aestivum L.) with specific quality traits requires a shift from the current breeding goal, being yield, to improved compositional and, consequently, functional traits. Since wheat is a key food crop, this must be attained while maintaining or even further increasing yield. Furthermore, as compositional requirements for specific applications are not well-defined, both protein and gluten content as well as the enzymatic activity remain most important. Given that these traits are majorly impacted by both genotype and environment, it is very complex to predict and ultimately control them. Different strategies, such as applying optimized agronomic practices, can temper these uncontrollable determinants which are equally important to steer wheat quality. As current research on their contribution to specific traits is highly fragmented, this report provides a comprehensive review of the influence of crop husbandry and environmental conditions on wheat yield and composition.
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Affiliation(s)
- T Hellemans
- Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering , Ghent University , Valentin Vaerwyckweg 1 , BE-9000 Ghent , Belgium
| | - S Landschoot
- Department of Data-Analysis and Mathematical Modelling, Faculty of Bioscience Engineering , Ghent University , Coupure Links 653 , BE-9000 Ghent , Belgium
- Department of Plants and Crops, Faculty of Bioscience Engineering , Ghent University , Diepestraat 1 , BE-9820 Bottelare , Merelbeke , Belgium
| | - K Dewitte
- Department of Plants and Crops, Faculty of Bioscience Engineering , Ghent University , Diepestraat 1 , BE-9820 Bottelare , Merelbeke , Belgium
| | - F Van Bockstaele
- Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering , Ghent University , Valentin Vaerwyckweg 1 , BE-9000 Ghent , Belgium
| | - P Vermeir
- Department of Green Chemistry and Technology, Faculty of Bioscience Engineering , Ghent University , Valentin Vaerwyckweg 1 , BE-9000 Ghent , Belgium
| | - M Eeckhout
- Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering , Ghent University , Valentin Vaerwyckweg 1 , BE-9000 Ghent , Belgium
| | - G Haesaert
- Department of Plants and Crops, Faculty of Bioscience Engineering , Ghent University , Diepestraat 1 , BE-9820 Bottelare , Merelbeke , Belgium
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135
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Carrera DÁ, Oddsson S, Grossmann J, Trachsel C, Streb S. Comparative Proteomic Analysis of Plant Acclimation to Six Different Long-Term Environmental Changes. PLANT & CELL PHYSIOLOGY 2018; 59:510-526. [PMID: 29300930 DOI: 10.1093/pcp/pcx206] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 12/20/2017] [Indexed: 06/07/2023]
Abstract
Plants are constantly challenged in their natural environment by a range of changing conditions. We investigated the acclimation processes and adaptive plant responses to various long-term mild changes and compared them directly within one experimental set-up. Arabidopsis thaliana plants were grown in hydroponic culture for 10 d under controlled abiotic stress (15°C, 25°C, salt and osmotic) and in nutrient deficiency (nitrate and phosphate). Plant growth was monitored and proteomic experiments were performed. Resource allocation between tissues altered during the plants' response. The growth patterns and induced changes of the proteomes indicated that the underlying mechanisms of the adaptation processes are highly specific to the respective environmental condition. Our results indicated differential regulation of response to salt and osmotic treatment, while the proteins in the changed temperature regime showed an inverse, temperature-sensitive control. There was a high correlation of protein level between the nutrient-deficient treatments, but the enriched pathways varied greatly. The proteomic analysis also revealed new insights into the regulation of proteins specific to the shoot and the root. Our investigation revealed unique strategies of plant acclimation to the different applied treatments on a physiological and proteome level, and these strategies are quite distinct in tissues below and above ground.
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Affiliation(s)
- Dániel Á Carrera
- Institute for Agricultural Sciences, Plant Biochemistry, ETH Zürich, CH-8092 Zürich, Switzerland
| | - Sebastian Oddsson
- Institute for Agricultural Sciences, Plant Biochemistry, ETH Zürich, CH-8092 Zürich, Switzerland
| | - Jonas Grossmann
- Functional Genomics Center Zürich, ETH Zürich/University of Zürich, CH-8057 Zürich, Switzerland
| | - Christian Trachsel
- Functional Genomics Center Zürich, ETH Zürich/University of Zürich, CH-8057 Zürich, Switzerland
| | - Sebastian Streb
- Institute for Agricultural Sciences, Plant Biochemistry, ETH Zürich, CH-8092 Zürich, Switzerland
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136
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Zhai S, Liu J, Xu D, Wen W, Yan J, Zhang P, Wan Y, Cao S, Hao Y, Xia X, Ma W, He Z. A Genome-Wide Association Study Reveals a Rich Genetic Architecture of Flour Color-Related Traits in Bread Wheat. FRONTIERS IN PLANT SCIENCE 2018; 9:1136. [PMID: 30123234 PMCID: PMC6085589 DOI: 10.3389/fpls.2018.01136] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 07/13/2018] [Indexed: 05/18/2023]
Abstract
Flour color-related traits, including brightness (L*), redness (a*), yellowness (b*) and yellow pigment content (YPC), are very important for end-use quality of wheat. Uncovering the genetic architecture of these traits is necessary for improving wheat quality by marker-assisted selection (MAS). In the present study, a genome-wide association study (GWAS) was performed on a collection of 166 bread wheat cultivars to better understand the genetic architecture of flour color-related traits using the wheat 90 and 660 K SNP arrays, and 10 allele-specific markers for known genes influencing these traits. Fifteen, 28, 25, and 32 marker-trait associations (MTAs) for L*, a*, b*, and YPC, respectively, were detected, explaining 6.5-20.9% phenotypic variation. Seventy-eight loci were consistent across all four environments. Compared with previous studies, Psy-A1, Psy-B1, Pinb-D1, and the 1B•1R translocation controlling flour color-related traits were confirmed, and four loci were novel. Two and 11 loci explained much more phenotypic variation of a* and YPC than phytoene synthase 1 gene (Psy1), respectively. Sixteen candidate genes were predicted based on biochemical information and bioinformatics analyses, mainly related to carotenoid biosynthesis and degradation, terpenoid backbone biosynthesis and glycolysis/gluconeogenesis. The results largely enrich our knowledge of the genetic basis of flour color-related traits in bread wheat and provide valuable markers for wheat quality improvement. The study also indicated that GWAS was a powerful strategy for dissecting flour color-related traits and identifying candidate genes based on diverse genotypes and high-throughput SNP arrays.
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Affiliation(s)
- Shengnan Zhai
- Crop Research Institute, National Engineering Laboratory for Wheat and Maize, Key Laboratory of Wheat Biology and Genetic Improvement in the Northern Yellow-Huai Rivers Valley of Ministry of Agriculture, Shandong Academy of Agricultural Sciences, Jinan, China
- National Wheat Improvement Center, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jindong Liu
- National Wheat Improvement Center, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Dengan Xu
- National Wheat Improvement Center, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Weie Wen
- National Wheat Improvement Center, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jun Yan
- National Wheat Improvement Center, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Pingzhi Zhang
- Crop Research Institute, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Yingxiu Wan
- Crop Research Institute, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Shuanghe Cao
- National Wheat Improvement Center, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yuanfeng Hao
- National Wheat Improvement Center, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xianchun Xia
- National Wheat Improvement Center, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wujun Ma
- School of Veterinary and Life Sciences, Murdoch University and Australian Export Grains Innovation Centre, Perth, WA, Australia
| | - Zhonghu He
- National Wheat Improvement Center, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- International Maize and Wheat Improvement Center, Beijing, China
- *Correspondence: Zhonghu He
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Ashe P, Shaterian H, Akhov L, Kulkarni M, Selvaraj G. Contrasting Root and Photosynthesis Traits in a Large-Acreage Canadian Durum Variety and Its Distant Parent of Algerian Origin for Assembling Drought/Heat Tolerance Attributes. Front Chem 2017; 5:121. [PMID: 29312927 PMCID: PMC5735070 DOI: 10.3389/fchem.2017.00121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 12/04/2017] [Indexed: 11/20/2022] Open
Abstract
In Canada, the world's top exporter of high-protein durum, varietal development over its nearly six-decade history has been driven by a quest for yield improvement without compromise on grain protein content and other quality aspects. Pelissier, a landrace selection from Algeria that was introduced into North America more than a century ago and the variety Strongfield that was released in 2004 are notable. Pelissier, known to elaborate more roots and considered as drought tolerant, has been cultivated commercially and thus deemed adapted. Strongfield has Pelissier in its pedigree, and it remains a high-acreage variety. Strongfield was found to elaborate only about half of the root biomass of Pelissier at maturity in greenhouse trials under well-watered conditions. Extended drought stress caused a significant reduction in the root biomass of both lines. However, Pelissier under drought maintained at least as much root biomass as that of Strongfield under well-watered conditions. In comparison to Pelissier, it had a superior photosynthesis rate (27.16 μmol CO2 m-2 s-1), capacity for carboxylation (Vcmax: 132.83 μmol CO2 m-2 s-1) and electron transport/ribulose-1,5-bisphosphate (RuBP) regeneration (Jmax: 265.40 μmol CO2 m-2 s-1); the corresponding values for Pelissier were 19.62 μmol CO2 m-2 s-1, 91.87 μmol CO2 m-2 s-1, and 163.83 μmol CO2 m-2 s-1, respectively, under well-watered conditions. Under short-term/mild drought conditions, the carbon assimilation rate remained stable in Pelissier while it declined in Strongfield to the Pelissier level. However, Strongfield succumbed to extended drought sooner than Pelissier. Photosynthesis in Strongfield but not Pelissier was found to be sensitive to high temperature stress. These results provide encouraging prospects for further exploitation of beneficial physiological traits from Pelissier in constructing climate-resilient, agronomically favorable wheat ideotypes.
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138
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Wang X, Luo G, Yang W, Li Y, Sun J, Zhan K, Liu D, Zhang A. Genetic diversity, population structure and marker-trait associations for agronomic and grain traits in wild diploid wheat Triticum urartu. BMC PLANT BIOLOGY 2017; 17:112. [PMID: 28668082 PMCID: PMC5494140 DOI: 10.1186/s12870-017-1058-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 06/14/2017] [Indexed: 12/19/2022]
Abstract
BACKGROUND Wild diploid wheat, Triticum urartu (T. urartu) is the progenitor of bread wheat, and understanding its genetic diversity and genome function will provide considerable reference for dissecting genomic information of common wheat. RESULTS In this study, we investigated the morphological and genetic diversity and population structure of 238 T. urartu accessions collected from different geographic regions. This collection had 19.37 alleles per SSR locus and its polymorphic information content (PIC) value was 0.76, and the PIC and Nei's gene diversity (GD) of high-molecular-weight glutenin subunits (HMW-GSs) were 0.86 and 0.88, respectively. UPGMA clustering analysis indicated that the 238 T. urartu accessions could be classified into two subpopulations, of which Cluster I contained accessions from Eastern Mediterranean coast and those from Mesopotamia and Transcaucasia belonged to Cluster II. The wide range of genetic diversity along with the manageable number of accessions makes it one of the best collections for mining valuable genes based on marker-trait association. Significant associations were observed between simple sequence repeats (SSR) or HMW-GSs and six morphological traits: heading date (HD), plant height (PH), spike length (SPL), spikelet number per spike (SPLN), tiller angle (TA) and grain length (GL). CONCLUSIONS Our data demonstrated that SSRs and HMW-GSs were useful markers for identification of beneficial genes controlling important traits in T. urartu, and subsequently for their conservation and future utilization, which may be useful for genetic improvement of the cultivated hexaploid wheat.
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Affiliation(s)
- Xin Wang
- State Key Laboratory of Plant Cell and Chromosome Engineering, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 1 West Beichen Road, Chaoyang District, Beijing, 100101 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Guangbin Luo
- State Key Laboratory of Plant Cell and Chromosome Engineering, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 1 West Beichen Road, Chaoyang District, Beijing, 100101 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Wenlong Yang
- State Key Laboratory of Plant Cell and Chromosome Engineering, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 1 West Beichen Road, Chaoyang District, Beijing, 100101 China
| | - Yiwen Li
- State Key Laboratory of Plant Cell and Chromosome Engineering, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 1 West Beichen Road, Chaoyang District, Beijing, 100101 China
| | - Jiazhu Sun
- State Key Laboratory of Plant Cell and Chromosome Engineering, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 1 West Beichen Road, Chaoyang District, Beijing, 100101 China
| | - Kehui Zhan
- College of Agronomy/The Collaborative Innovation Center of Grain Crops in Henan, Henan Agricultural University, No. 95 Wenhua Road, Zhengzhou, 450002 China
| | - Dongcheng Liu
- State Key Laboratory of Plant Cell and Chromosome Engineering, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 1 West Beichen Road, Chaoyang District, Beijing, 100101 China
| | - Aimin Zhang
- State Key Laboratory of Plant Cell and Chromosome Engineering, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 1 West Beichen Road, Chaoyang District, Beijing, 100101 China
- College of Agronomy/The Collaborative Innovation Center of Grain Crops in Henan, Henan Agricultural University, No. 95 Wenhua Road, Zhengzhou, 450002 China
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139
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Zhang P, He Z, Tian X, Gao F, Xu D, Liu J, Wen W, Fu L, Li G, Sui X, Xia X, Wang C, Cao S. Cloning of TaTPP-6AL1 associated with grain weight in bread wheat and development of functional marker. MOLECULAR BREEDING 2017; 37:78. [PMID: 0 DOI: 10.1007/s11032-017-0676-y] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
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140
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Ma D, Sun D, Wang C, Ding H, Qin H, Hou J, Huang X, Xie Y, Guo T. Physiological Responses and Yield of Wheat Plants in Zinc-Mediated Alleviation of Drought Stress. FRONTIERS IN PLANT SCIENCE 2017; 8:860. [PMID: 28596777 PMCID: PMC5442205 DOI: 10.3389/fpls.2017.00860] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 05/09/2017] [Indexed: 05/07/2023]
Abstract
To evaluate the physiological responses of wheat to zinc (Zn) fertilizer application under drought stress, pot, and field experiments were conducted on wheat plants grown under different soil moistures and treated with soil and foliar Zn applications. Photosynthetic characteristics, antioxidant content, Zn element concentration, and the transcription level of genes involved in antioxidant biosynthesis were analyzed. Zn application increased SPAD and Fv/Fm of wheat flag leaves, while decreased lipid peroxidation levels and H2O2 content. Zn application increased the antioxidant content (ascorbate, reduced glutathione, total phenolic, and total flavonoid) of wheat flag leaves, and enhanced the relative expression levels of two antioxidant enzyme genes, four ascorbate-glutathione cycle genes, and two flavonoid biosynthesis pathway genes under drought stress. Soil Zn application increased grain yield and Zn concentration by 10.5 and 15.8%, 22.6 and 9.7%, and 28.2 and 32.8% under adequate water supply, moderate drought, and severe drought, respectively. Furthermore, foliar application of Zn in the field increased grain yield and grain Zn concentration under both adequate water supply and rain-fed conditions. Zn plays a role in alleviating wheat plant drought stress by Zn-mediated increase in photosynthesis pigment and active oxygen scavenging substances, and reduction in lipid peroxidation. Furthermore, Zn fertilizer could regulate multiple antioxidant defense systems at the transcriptional level in response to drought.
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Affiliation(s)
- Dongyun Ma
- Agronomy College/National Engineering Research Center for Wheat, Henan Agricultural UniversityZhengzhou, China
- The Collaborative Innovation Center of Henan Food Crops, Henan Agricultural UniversityZhengzhou, China
| | - Dexiang Sun
- Agronomy College/National Engineering Research Center for Wheat, Henan Agricultural UniversityZhengzhou, China
| | - Chenyang Wang
- Agronomy College/National Engineering Research Center for Wheat, Henan Agricultural UniversityZhengzhou, China
- The National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural UniversityZhengzhou, China
| | - Huina Ding
- Agronomy College/National Engineering Research Center for Wheat, Henan Agricultural UniversityZhengzhou, China
| | - Haixia Qin
- Agronomy College/National Engineering Research Center for Wheat, Henan Agricultural UniversityZhengzhou, China
| | - Junfeng Hou
- Agronomy College/National Engineering Research Center for Wheat, Henan Agricultural UniversityZhengzhou, China
| | - Xin Huang
- Agronomy College/National Engineering Research Center for Wheat, Henan Agricultural UniversityZhengzhou, China
| | - Yingxin Xie
- Agronomy College/National Engineering Research Center for Wheat, Henan Agricultural UniversityZhengzhou, China
- The Collaborative Innovation Center of Henan Food Crops, Henan Agricultural UniversityZhengzhou, China
| | - Tiancai Guo
- Agronomy College/National Engineering Research Center for Wheat, Henan Agricultural UniversityZhengzhou, China
- The Collaborative Innovation Center of Henan Food Crops, Henan Agricultural UniversityZhengzhou, China
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141
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Zhang P, Yin G, Zhou Y, Qi A, Gao F, Xia X, He Z, Li Z, Liu D. QTL Mapping of Adult-Plant Resistance to Leaf Rust in the Wheat Cross Zhou 8425B/Chinese Spring Using High-Density SNP Markers. FRONTIERS IN PLANT SCIENCE 2017; 8:793. [PMID: 28559910 PMCID: PMC5432574 DOI: 10.3389/fpls.2017.00793] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 04/27/2017] [Indexed: 05/02/2023]
Abstract
Wheat leaf rust is an important disease worldwide. Growing resistant cultivars is an effective means to control the disease. In the present study, 244 recombinant inbred lines from Zhou 8425B/Chinese Spring cross were phenotyped for leaf rust severities during the 2011-2012, 2012-2013, 2013-2014, and 2014-2015 cropping seasons at Baoding, Hebei province, and 2012-2013 and 2013-2014 cropping seasons in Zhoukou, Henan province. The population was genotyped using the high-density Illumina iSelect 90K SNP assay and SSR markers. Inclusive composite interval mapping identified eight QTL, designated as QLr.hebau-2AL, QLr.hebau-2BS, QLr.hebau-3A, QLr.hebau-3BS, QLr.hebau-4AL, QLr.hebau-4B, QLr.hebau-5BL, and QLr.hebau-7DS, respectively. QLr.hebau-2BS, QLr.hebau-3A, QLr.hebau-3BS, and QLr.hebau-5BL were derived from Zhou 8425B, whereas the other four were from Chinese Spring. Three stable QTL on chromosomes 2BS, 4B and 7DS explained 7.5-10.6%, 5.5-24.4%, and 11.2-20.9% of the phenotypic variance, respectively. QLr.hebau-2BS in Zhou 8425B might be the same as LrZH22 in Zhoumai 22; QLr.hebau-4B might be the residual resistance of Lr12, and QLr.hebau-7DS is Lr34. QLr.hebau-2AL, QLr.hebau-3BS, QLr.hebau-4AL, and QLr.hebau-5BL are likely to be novel QTL for leaf rust. These QTL and their closely linked SNP and SSR markers can be used for fine mapping, candidate gene discovery, and marker-assisted selection in wheat breeding.
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Affiliation(s)
- Peipei Zhang
- College of Plant Protection, Agricultural University of HebeiBaoding, China
| | - Guihong Yin
- Zhoukou Academy of Agricultural SciencesZhoukou, China
| | - Yue Zhou
- Department of Biochemistry, Baoding UniversityBaoding, China
| | - Aiyong Qi
- College of Plant Protection, Agricultural University of HebeiBaoding, China
| | - Fengmei Gao
- Institute of Crop Science, National Wheat Improvement Center – Chinese Academy of Agricultural SciencesBeijing, China
| | - Xianchun Xia
- Institute of Crop Science, National Wheat Improvement Center – Chinese Academy of Agricultural SciencesBeijing, China
| | - Zhonghu He
- Institute of Crop Science, National Wheat Improvement Center – Chinese Academy of Agricultural SciencesBeijing, China
| | - Zaifeng Li
- College of Plant Protection, Agricultural University of HebeiBaoding, China
| | - Daqun Liu
- College of Plant Protection, Agricultural University of HebeiBaoding, China
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142
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Merchuk-Ovnat L, Fahima T, Ephrath JE, Krugman T, Saranga Y. Ancestral QTL Alleles from Wild Emmer Wheat Enhance Root Development under Drought in Modern Wheat. FRONTIERS IN PLANT SCIENCE 2017; 8:703. [PMID: 28536586 PMCID: PMC5422550 DOI: 10.3389/fpls.2017.00703] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 04/18/2017] [Indexed: 05/17/2023]
Abstract
A near-isogenic line (NIL-7A-B-2), introgressed with a quantitative trait locus (QTL) on chromosome 7AS from wild emmer wheat (Triticum turgidum ssp. dicoccoides) into the background of bread wheat (T. aestivum L.) cv. BarNir, was recently developed and studied in our lab. NIL-7A-B-2 exhibited better productivity and photosynthetic capacity than its recurrent parent across a range of environments. Here we tested the hypothesis that root-system modifications play a major role in NIL-7A-B-2's agronomical superiority. Root-system architecture (dry matter and projected surface area) and shoot parameters of NIL-7A-B-2 and 'BarNir' were evaluated at 40, 62, and 82 days after planting (DAP) in a sand-tube experiment, and root tip number was assessed in a 'cigar-roll' seedling experiment, both under well-watered and water-limited (WL) treatments. At 82 DAP, under WL treatment, NIL-7A-B-2 presented greater investment in deep roots (depth 40-100 cm) than 'BarNir,' with the most pronounced effect recorded in the 60-80 cm soil depth (60 and 40% increase for root dry matter and surface area, respectively). NIL-7A-B-2 had significantly higher root-tip numbers (∼48%) per plant than 'BarNir' under both treatments. These results suggest that the introgression of 7AS QTL from wild emmer wheat induced a deeper root system under progressive water stress, which may enhance abiotic stress resistance and productivity of domesticated wheat.
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Affiliation(s)
- Lianne Merchuk-Ovnat
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Hebrew University of JerusalemRehovot, Israel
| | - Tzion Fahima
- Institute of Evolution, University of HaifaHaifa, Israel
| | - Jhonathan E. Ephrath
- French Associates Institute for Agriculture and Biotechnology of Drylands, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the NegevBeersheba, Israel
| | - Tamar Krugman
- Institute of Evolution, University of HaifaHaifa, Israel
| | - Yehoshua Saranga
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Hebrew University of JerusalemRehovot, Israel
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143
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Proteome scale identification, classification and structural analysis of iron-binding proteins in bread wheat. J Inorg Biochem 2017; 170:63-74. [DOI: 10.1016/j.jinorgbio.2017.02.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Revised: 01/23/2017] [Accepted: 02/10/2017] [Indexed: 12/26/2022]
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144
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Woodrow P, Ciarmiello LF, Annunziata MG, Pacifico S, Iannuzzi F, Mirto A, D'Amelia L, Dell'Aversana E, Piccolella S, Fuggi A, Carillo P. Durum wheat seedling responses to simultaneous high light and salinity involve a fine reconfiguration of amino acids and carbohydrate metabolism. PHYSIOLOGIA PLANTARUM 2017; 159:290-312. [PMID: 27653956 DOI: 10.1111/ppl.12513] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Revised: 08/22/2016] [Accepted: 09/07/2016] [Indexed: 05/03/2023]
Abstract
Durum wheat plants are extremely sensitive to drought and salinity during seedling and early development stages. Their responses to stresses have been extensively studied to provide new metabolic targets and improving the tolerance to adverse environments. Most of these studies have been performed in growth chambers under low light [300-350 µmol m-2 s-1 photosynthetically active radiation (PAR), LL]. However, in nature plants have to face frequent fluctuations of light intensities that often exceed their photosynthetic capacity (900-2000 µmol m-2 s-1 ). In this study we investigated the physiological and metabolic changes potentially involved in osmotic adjustment and antioxidant defense in durum wheat seedlings under high light (HL) and salinity. The combined application of the two stresses decreased the water potential and stomatal conductance without reducing the photosynthetic efficiency of the plants. Glycine betaine (GB) synthesis was inhibited, proline and glutamate content decreased, while γ-aminobutyric acid (GABA), amides and minor amino acids increased. The expression level and enzymatic activities of Δ1-pyrroline-5-carboxylate synthetase, asparagine synthetase and glutamate decarboxylase, as well as other enzymatic activities of nitrogen and carbon metabolism, were analyzed. Antioxidant enzymes and metabolites were also considered. The results showed that the complex interplay seen in durum wheat plants under salinity at LL was simplified: GB and antioxidants did not play a main role. On the contrary, the fine tuning of few specific primary metabolites (GABA, amides, minor amino acids and hexoses) remodeled metabolism and defense processes, playing a key role in the response to simultaneous stresses.
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Affiliation(s)
- Pasqualina Woodrow
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e Farmaceutiche, Seconda Università degli Studi di Napoli, Caserta, 81100, Italy
| | - Loredana F Ciarmiello
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e Farmaceutiche, Seconda Università degli Studi di Napoli, Caserta, 81100, Italy
| | - Maria Grazia Annunziata
- Department of Metabolic Networks, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Severina Pacifico
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e Farmaceutiche, Seconda Università degli Studi di Napoli, Caserta, 81100, Italy
| | - Federica Iannuzzi
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e Farmaceutiche, Seconda Università degli Studi di Napoli, Caserta, 81100, Italy
| | - Antonio Mirto
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e Farmaceutiche, Seconda Università degli Studi di Napoli, Caserta, 81100, Italy
| | - Luisa D'Amelia
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e Farmaceutiche, Seconda Università degli Studi di Napoli, Caserta, 81100, Italy
| | - Emilia Dell'Aversana
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e Farmaceutiche, Seconda Università degli Studi di Napoli, Caserta, 81100, Italy
| | - Simona Piccolella
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e Farmaceutiche, Seconda Università degli Studi di Napoli, Caserta, 81100, Italy
| | - Amodio Fuggi
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e Farmaceutiche, Seconda Università degli Studi di Napoli, Caserta, 81100, Italy
| | - Petronia Carillo
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e Farmaceutiche, Seconda Università degli Studi di Napoli, Caserta, 81100, Italy
- Department of Metabolic Networks, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
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145
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Aradottir G, Martin J, Clark S, Pickett J, Smart L. Searching for wheat resistance to aphids and wheat bulb fly in the historical Watkins and Gediflux wheat collections. THE ANNALS OF APPLIED BIOLOGY 2017; 170:179-188. [PMID: 28303034 PMCID: PMC5324697 DOI: 10.1111/aab.12326] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 05/19/2016] [Accepted: 07/29/2016] [Indexed: 05/10/2023]
Abstract
Insect pests can reduce wheat yield by direct feeding and transmission of plant viruses. Here we report results from laboratory and field phenotyping studies on a wide range of wheat, including landraces from the Watkins collection deriving from before the green revolution, more modern cultivars from the Gediflux collection (north-western Europe) and modern UK Elite varieties, for resistance to the bird cherry-oat aphid, Rhopalosiphum padi (Homoptera: Aphididae) and the English grain aphid, Sitobion avenae (Homoptera: Aphididae). A total of 338 lines were screened for R. padi and 340 lines for S. avenae. Field trials were also conducted on 122 Watkins lines to identify wheat bulb fly, Delia coarctata, preference on these landraces. Considerable variation was shown in insect performance among and within different wheat collections, with reduced susceptibility in a number of varieties, but phenotyping did not identify strong resistance to aphids or wheat bulb fly. Field trials showed within collection differences in aphid performance, with fewer aphids populating lines from the Watkins collection. This differs from development data in laboratory bioassays and suggests that there is a pre-alighting cue deterring aphid settlement and demonstrates differences in aphid preference and performance on older plants in the field compared with seedlings in the laboratory, highlighting the need for phenotyping for aphid resistance at different plant growth stages. No association was identified between performance of the different insect species on individual varieties, potentially suggesting different nutritional requirements or resistance mechanisms.
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Affiliation(s)
- G.I. Aradottir
- Department of Biological Chemistry and Crop ProtectionRothamsted ResearchHarpendenHertfordshireUK
| | - J.L. Martin
- Department of Biological Chemistry and Crop ProtectionRothamsted ResearchHarpendenHertfordshireUK
| | - S.J. Clark
- Department of Computational and Systems BiologyRothamsted ResearchHarpendenHertfordshireUK
| | - J.A. Pickett
- Department of Biological Chemistry and Crop ProtectionRothamsted ResearchHarpendenHertfordshireUK
| | - L.E. Smart
- Department of Biological Chemistry and Crop ProtectionRothamsted ResearchHarpendenHertfordshireUK
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146
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Wang FF, Liu TT, Li QF, An YL, Xie CP, Sun X, Liu K, Deng ZY, Tian JC, Chen JS. QTL mapping of the pasting properties of wheat flour treated by papain digestion. STARCH-STARKE 2016. [DOI: 10.1002/star.201600077] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Fang-fang Wang
- State Key Laboratory of Crop Biology; Group of Wheat Quality Breeding; College of Agronomy; Shandong Agricultural University; Shandong P. R. China
| | - Tong-tong Liu
- State Key Laboratory of Crop Biology; Group of Wheat Quality Breeding; College of Agronomy; Shandong Agricultural University; Shandong P. R. China
| | - Qing-fang Li
- State Key Laboratory of Crop Biology; Group of Wheat Quality Breeding; College of Agronomy; Shandong Agricultural University; Shandong P. R. China
| | - Yu-ling An
- State Key Laboratory of Crop Biology; Group of Wheat Quality Breeding; College of Agronomy; Shandong Agricultural University; Shandong P. R. China
| | - Chu-peng Xie
- State Key Laboratory of Crop Biology; Group of Wheat Quality Breeding; College of Agronomy; Shandong Agricultural University; Shandong P. R. China
| | - Xiaoxiao Sun
- State Key Laboratory of Crop Biology; Group of Wheat Quality Breeding; College of Agronomy; Shandong Agricultural University; Shandong P. R. China
| | - Kai Liu
- State Key Laboratory of Crop Biology; Group of Wheat Quality Breeding; College of Agronomy; Shandong Agricultural University; Shandong P. R. China
| | - Zhi-ying Deng
- State Key Laboratory of Crop Biology; Group of Wheat Quality Breeding; College of Agronomy; Shandong Agricultural University; Shandong P. R. China
| | - Ji-chun Tian
- State Key Laboratory of Crop Biology; Group of Wheat Quality Breeding; College of Agronomy; Shandong Agricultural University; Shandong P. R. China
| | - Jian-sheng Chen
- State Key Laboratory of Crop Biology; Group of Wheat Quality Breeding; College of Agronomy; Shandong Agricultural University; Shandong P. R. China
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147
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Curtis TY, Halford NG. Reducing the acrylamide-forming potential of wheat. Food Energy Secur 2016. [DOI: 10.1002/fes3.85] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Tanya Y. Curtis
- Plant Biology and Crop Science Department; Rothamsted Research; Harpenden Hertfordshire AL5 2JQ UK
| | - Nigel G. Halford
- Plant Biology and Crop Science Department; Rothamsted Research; Harpenden Hertfordshire AL5 2JQ UK
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148
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Greenslade A, Ward J, Martin J, Corol D, Clark S, Smart L, Aradottir G. Triticum monococcum lines with distinct metabolic phenotypes and phloem-based partial resistance to the bird cherry-oat aphid Rhopalosiphum padi. THE ANNALS OF APPLIED BIOLOGY 2016; 168:435-449. [PMID: 27570248 PMCID: PMC4982108 DOI: 10.1111/aab.12274] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 10/15/2015] [Accepted: 07/14/2015] [Indexed: 05/10/2023]
Abstract
Crop protection is an integral part of establishing food security, by protecting the yield potential of crops. Cereal aphids cause yield losses by direct damage and transmission of viruses. Some wild relatives of wheat show resistance to aphids but the mechanisms remain unresolved. In order to elucidate the location of the partial resistance to the bird cherry-oat aphid, Rhopalosiphum padi, in diploid wheat lines of Triticum monococcum, we conducted aphid performance studies using developmental bioassays and electrical penetration graphs, as well as metabolic profiling of partially resistant and susceptible lines. This demonstrated that the partial resistance is related to a delayed effect on the reproduction and development of R. padi. The observed partial resistance is phloem based and is shown by an increase in number of probes before the first phloem ingestion, a higher number and duration of salivation events without subsequent phloem feeding and a shorter time spent phloem feeding on plants with reduced susceptibility. Clear metabolic phenotypes separate partially resistant and susceptible lines, with the former having lower levels of the majority of primary metabolites, including total carbohydrates. A number of compounds were identified as being at different levels in the susceptible and partially resistant lines, with asparagine, octopamine and glycine betaine elevated in less susceptible lines without aphid infestation. In addition, two of those, asparagine and octopamine, as well as threonine, glutamine, succinate, trehalose, glycerol, guanosine and choline increased in response to infestation, accumulating in plant tissue localised close to aphid feeding after 24 h. There was no clear evidence of systemic plant response to aphid infestation.
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Affiliation(s)
- A.F.C. Greenslade
- Department of Biological Chemistry and Crop ProtectionRothamsted ResearchHertfordshireAL5 5JQUK
| | - J.L. Ward
- Department of Plant Biology and Crop ScienceRothamsted ResearchHertfordshireAL5 5JQUK
| | - J.L. Martin
- Department of Biological Chemistry and Crop ProtectionRothamsted ResearchHertfordshireAL5 5JQUK
| | - D.I. Corol
- Department of Plant Biology and Crop ScienceRothamsted ResearchHertfordshireAL5 5JQUK
| | - S.J. Clark
- Department of Computational and Systems BiologyRothamsted ResearchHertfordshireAL5 2JQUK
| | - L.E. Smart
- Department of Biological Chemistry and Crop ProtectionRothamsted ResearchHertfordshireAL5 5JQUK
| | - G.I. Aradottir
- Department of Biological Chemistry and Crop ProtectionRothamsted ResearchHertfordshireAL5 5JQUK
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149
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Merchuk-Ovnat L, Barak V, Fahima T, Ordon F, Lidzbarsky GA, Krugman T, Saranga Y. Ancestral QTL Alleles from Wild Emmer Wheat Improve Drought Resistance and Productivity in Modern Wheat Cultivars. FRONTIERS IN PLANT SCIENCE 2016; 7:452. [PMID: 27148287 PMCID: PMC4832586 DOI: 10.3389/fpls.2016.00452] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 03/22/2016] [Indexed: 05/21/2023]
Abstract
Wild emmer wheat (Triticum turgidum ssp. dicoccoides) is considered a promising source for improving stress resistances in domesticated wheat. Here we explored the potential of selected quantitative trait loci (QTLs) from wild emmer wheat, introgressed via marker-assisted selection, to enhance drought resistance in elite durum (T. turgidum ssp. durum) and bread (T. aestivum) wheat cultivars. The resultant near-isogenic lines (BC3F3 and BC3F4) were genotyped using SNP array to confirm the introgressed genomic regions and evaluated in two consecutive years under well-watered (690-710 mm) and water-limited (290-320 mm) conditions. Three of the introgressed QTLs were successfully validated, two in the background of durum wheat cv. Uzan (on chromosomes 1BL and 2BS), and one in the background of bread wheat cvs. Bar Nir and Zahir (chromosome 7AS). In most cases, the QTL x environment interaction was validated in terms of improved grain yield and biomass-specifically under drought (7AS QTL in cv. Bar Nir background), under both treatments (2BS QTL), and a greater stability across treatments (1BL QTL). The results provide a first demonstration that introgression of wild emmer QTL alleles can enhance productivity and yield stability across environments in domesticated wheat, thereby enriching the modern gene pool with essential diversity for the improvement of drought resistance.
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Affiliation(s)
- Lianne Merchuk-Ovnat
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of JerusalemRehovot, Israel
| | - Vered Barak
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of JerusalemRehovot, Israel
| | - Tzion Fahima
- Institute of Evolution and Department of Evolutionary and Environmental Biology, University of HaifaHaifa, Israel
| | - Frank Ordon
- Federal Research Centre for Cultivated Plants, Julius Kuehn-Institute, Institute for Resistance Research and Stress ToleranceQuedlinburg, Germany
| | - Gabriel A. Lidzbarsky
- Institute of Evolution and Department of Evolutionary and Environmental Biology, University of HaifaHaifa, Israel
| | - Tamar Krugman
- Institute of Evolution and Department of Evolutionary and Environmental Biology, University of HaifaHaifa, Israel
| | - Yehoshua Saranga
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of JerusalemRehovot, Israel
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150
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Sahu R, Sharaff M, Pradhan M, Sethi A, Bandyopadhyay T, Mishra VK, Chand R, Chowdhury AK, Joshi AK, Pandey SP. Elucidation of defense-related signaling responses to spot blotch infection in bread wheat (Triticum aestivum L.). THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2016; 86:35-49. [PMID: 26932764 DOI: 10.1111/tpj.13149] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 02/13/2016] [Accepted: 02/15/2016] [Indexed: 05/20/2023]
Abstract
Spot blotch disease, caused by Bipolaris sorokiniana, is an important threat to wheat, causing an annual loss of ~17%. Under epidemic conditions, these losses may be 100%, yet the molecular responses of wheat to spot blotch remain almost uncharacterized. Moreover, defense-related phytohormone signaling genes have been poorly characterized in wheat. Here, we have identified 18 central components of salicylic acid (SA), jasmonic acid (JA), ethylene (ET), and enhanced disease susceptibility 1 (EDS1) signaling pathways as well as the genes of the phenylpropanoid pathway in wheat. In time-course experiments, we characterized the reprogramming of expression of these pathways in two contrasting genotypes: Yangmai #6 (resistant to spot blotch) and Sonalika (susceptible to spot blotch). We further evaluated the performance of a population of recombinant inbred lines (RILs) by crossing Yangmai#6 and Sonalika (parents) and subsequent selfing to F10 under field conditions in trials at multiple locations. We characterized the reprogramming of defense-related signaling in these RILs as a consequence of spot blotch attack. During resistance to spot blotch attack, wheat strongly elicits SA signaling (SA biogenesis as well as the NPR1-dependent signaling pathway), along with WRKY33 transcription factor, followed by an enhanced expression of phenylpropanoid pathway genes. These may lead to accumulation of phenolics-based defense metabolites that may render resistance against spot blotch. JA signaling may synergistically contribute to the resistance. Failure to elicit SA (and possibly JA) signaling may lead to susceptibility against spot blotch infection in wheat.
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Affiliation(s)
- Ranabir Sahu
- Department of Biological Sciences, Indian Institute of Science Education and Research - Kolkata, Mohanpur Campus, Mohanpur, 741246, West Bengal, India
| | - Murali Sharaff
- Department of Biological Sciences, Indian Institute of Science Education and Research - Kolkata, Mohanpur Campus, Mohanpur, 741246, West Bengal, India
| | - Maitree Pradhan
- Department of Biological Sciences, Indian Institute of Science Education and Research - Kolkata, Mohanpur Campus, Mohanpur, 741246, West Bengal, India
| | - Avinash Sethi
- Department of Biological Sciences, Indian Institute of Science Education and Research - Kolkata, Mohanpur Campus, Mohanpur, 741246, West Bengal, India
| | - Tirthankar Bandyopadhyay
- Department of Biological Sciences, Indian Institute of Science Education and Research - Kolkata, Mohanpur Campus, Mohanpur, 741246, West Bengal, India
| | - Vinod K Mishra
- Department of Genetics and Plant Breeding, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, 22105, India
| | - Ramesh Chand
- Department of Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, 22105, India
| | - Apurba K Chowdhury
- Uttar Banga Krishi Viswavidyalaya, Cooch Behar, Varanasi, 736165, West Bengal, India
| | - Arun K Joshi
- Department of Genetics and Plant Breeding, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, 22105, India
- The International Maize and Wheat Improvement Center (CIMMYT) South Asia Office, Singh Durbar Plaza Marg, Kathmandu, Nepal
| | - Shree P Pandey
- Department of Biological Sciences, Indian Institute of Science Education and Research - Kolkata, Mohanpur Campus, Mohanpur, 741246, West Bengal, India
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