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Lakshmi V, Kumar A, Sangam S, Akhtar S, Chattopadhyay T. Multiplex PCR for Early Generation Identification of Tomato Segregants Carrying Ty-2, Ty-3 and Ph-3 Resistance Alleles Against Leaf Curl and Late Blight Diseases. Mol Biotechnol 2024:10.1007/s12033-024-01220-8. [PMID: 38900362 DOI: 10.1007/s12033-024-01220-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Accepted: 06/05/2024] [Indexed: 06/21/2024]
Abstract
Deployment of different natural disease resistance alleles is the most sustainable and eco-friendly way for multiple disease management in tomato. Diagnostic molecular markers are indispensible in this effort as they offer early generation identification of resistance alleles in an environment-independent manner. Moreover, optimized multiplex polymerase chain reaction (PCR) for detecting different disease resistance alleles in a single reaction can speed-up the selection process with cost and labour-effectiveness. Here we report the optimized multiplex detection and stacking of leaf curl disease resistance alleles Ty-2 and Ty-3 along with late blight disease resistance allele Ph-3 in tomato genotypes and F2 segregants. The triplex assay could be replaced by a duplex assay (for Ty-2 and Ty-3 resistance alleles) followed by analysis at Ph-3 locus to achieve further cost-effectiveness. We identified two plants in F2 populations derived from the Arka Samrat (F1) x Kashi Chayan combination to carry the Ty-2, Ty-3 and Ph-3 resistance alleles in homozygous condition. Early generation genotyping also allowed us to identify a few morphologically better segregants, where further marker assisted selection (MAS) should identify superior multiple disease resistant lines. Thus we advocate the utility of multiplex PCR in MAS to address multiple disease resistance breeding in tomato.
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Affiliation(s)
- Vijaya Lakshmi
- Department of Plant Breeding and Genetics, Bihar Agricultural College, Bihar Agricultural University, Sabour, Bhagalpur, Bihar, 813210, India
| | - Awnish Kumar
- Department of Plant Breeding and Genetics, Bihar Agricultural College, Bihar Agricultural University, Sabour, Bhagalpur, Bihar, 813210, India
| | - Surabhi Sangam
- Department of Horticulture (Vegetable and Floriculture), Bihar Agricultural College, Bihar Agricultural University, Sabour, Bhagalpur, Bihar, 813210, India
| | - Shirin Akhtar
- Department of Horticulture (Vegetable and Floriculture), Bihar Agricultural College, Bihar Agricultural University, Sabour, Bhagalpur, Bihar, 813210, India
| | - Tirthartha Chattopadhyay
- Department of Plant Breeding and Genetics, Bihar Agricultural College, Bihar Agricultural University, Sabour, Bhagalpur, Bihar, 813210, India.
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Chang CY, Yang SX, Zhang MQ, Guo YT, Li XM, Yan Y, Ding CH, Niu KX, Wang ML, Li QQ, Zhang J, Zhang X, Chen S, Xie C, Ni Z, Sun Q, Gou JY. Suppression of ZEAXANTHIN EPOXIDASE 1 restricts stripe rust growth in wheat. PLANT COMMUNICATIONS 2023; 4:100608. [PMID: 37101397 PMCID: PMC10504589 DOI: 10.1016/j.xplc.2023.100608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/28/2023] [Accepted: 04/23/2023] [Indexed: 05/30/2023]
Abstract
Reducing losses caused by pathogens is an effective strategy for stabilizing crop yields. Daunting challenges remain in cloning and characterizing genes that inhibit stripe rust, a devastating disease of wheat (Triticum aestivum) caused by Puccinia striiformis f. sp. tritici (Pst). We found that suppression of wheat zeaxanthin epoxidase 1 (ZEP1) increased wheat defense against Pst. We isolated the yellow rust slower 1 (yrs1) mutant of tetraploid wheat in which a premature stop mutation in ZEP1-B underpins the phenotype. Genetic analyses revealed increased H2O2 accumulation in zep1 mutants and demonstrated a correlation between ZEP1 dysfunction and slower Pst growth in wheat. Moreover, wheat kinase START 1.1 (WKS1.1, Yr36) bound, phosphorylated, and suppressed the biochemical activity of ZEP1. A rare natural allele in the hexaploid wheat ZEP1-B promoter reduced its transcription and Pst growth. Our study thus identified a novel suppressor of Pst, characterized its mechanism of action, and revealed beneficial variants for wheat disease control. This work opens the door to stacking wheat ZEP1 variants with other known Pst resistance genes in future breeding programs to enhance wheat tolerance to pathogens.
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Affiliation(s)
- Chao-Yan Chang
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Shu-Xian Yang
- School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Mei-Qi Zhang
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Yue-Ting Guo
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Xiao-Ming Li
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Yan Yan
- School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Ci-Hang Ding
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Ke-Xin Niu
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Meng-Lu Wang
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Qin-Quan Li
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Junli Zhang
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Jinming Road, Kaifeng 475004, China
| | - Xuebin Zhang
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Jinming Road, Kaifeng 475004, China
| | - Shisheng Chen
- Peking University Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agricultural Sciences at Weifang, Weifang, Shandong 261000, China
| | - Chaojie Xie
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Zhongfu Ni
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Qixin Sun
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Jin-Ying Gou
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; School of Life Sciences, Fudan University, Shanghai 200438, China.
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Malysheva A, Kokhmetova A, Urazaliev R, Kumarbayeva M, Keishilov Z, Nurzhuma M, Bolatbekova A, Kokhmetova A. Phenotyping and Identification of Molecular Markers Associated with Leaf Rust Resistance in the Wheat Germplasm from Kazakhstan, CIMMYT and ICARDA. PLANTS (BASEL, SWITZERLAND) 2023; 12:2786. [PMID: 37570940 PMCID: PMC10421303 DOI: 10.3390/plants12152786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/21/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023]
Abstract
Leaf rust (LR) is the most widespread disease of common wheat worldwide. In order to evaluate leaf rust resistance, 70 uncharacterized wheat cultivars and promising lines with unknown leaf rust resistance genes (Lr genes) were exposed to Kazakhstani Puccinia triticina (Pt) races at the seedling stage. Field tests were performed to characterize leaf rust responses at the adult plant growth stage in the 2020-2021 and 2021-2022 cropping seasons. The wheat collection showed phenotypic diversity when tested with two virulent races of Pt. Thirteen wheat genotypes (18.6%) showed high resistance at both seedling and adult plant stages. In most cases, breeding material originating from international nurseries showed higher resistance to LR. Nine Lr genes, viz. Lr9, Lr10, Lr19, Lr26, Lr28, Lr34, Lr37, Lr46, and Lr68, either singly or in combination, were identified in 47 genotypes. Known Lr genes were not detected in the remaining 23 genotypes. The most commonly identified resistance genes were Lr37 (17 cultivars), Lr34 (16 cultivars), and Lr46 (10 cultivars), while Lr19, Lr68, Lr26, and Lr28 were the least frequent. Four Lr genes were identified in Keremet and Hisorok, followed by three Lr genes in Aliya, Rasad, Reke, Mataj, Egana and Almaly/Obri. The molecular screening revealed twenty-nine carriers of a single Lr gene, ten carriers of two genes, six carriers of three genes, and two carriers of four genes. Most of these accessions showed a high and moderate level of APR (Adult plant resistance) and may be utilized for the incorporation of Lr genes in well-adapted wheat cultivars. The most effective combination was Lr37, Lr34, and Lr68, the carriers of which were characterized by a low disease susceptibility index. The obtained results will facilitate breeding programs for wheat resistance in Kazakhstan.
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Affiliation(s)
- Angelina Malysheva
- Institute of Plant Biology and Biotechnology, Almaty 050040, Kazakhstan; (M.K.); (Z.K.); (M.N.); (A.B.); (A.K.)
| | - Alma Kokhmetova
- Institute of Plant Biology and Biotechnology, Almaty 050040, Kazakhstan; (M.K.); (Z.K.); (M.N.); (A.B.); (A.K.)
| | - Rakhym Urazaliev
- Kazakh Research Institute of Agriculture and Plant Growing, Almalybak 040909, Kazakhstan;
| | - Madina Kumarbayeva
- Institute of Plant Biology and Biotechnology, Almaty 050040, Kazakhstan; (M.K.); (Z.K.); (M.N.); (A.B.); (A.K.)
| | - Zhenis Keishilov
- Institute of Plant Biology and Biotechnology, Almaty 050040, Kazakhstan; (M.K.); (Z.K.); (M.N.); (A.B.); (A.K.)
| | - Makpal Nurzhuma
- Institute of Plant Biology and Biotechnology, Almaty 050040, Kazakhstan; (M.K.); (Z.K.); (M.N.); (A.B.); (A.K.)
| | - Ardak Bolatbekova
- Institute of Plant Biology and Biotechnology, Almaty 050040, Kazakhstan; (M.K.); (Z.K.); (M.N.); (A.B.); (A.K.)
| | - Assiya Kokhmetova
- Institute of Plant Biology and Biotechnology, Almaty 050040, Kazakhstan; (M.K.); (Z.K.); (M.N.); (A.B.); (A.K.)
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