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Gupta A, Kumar M, Zhang B, Tomar M, Walia AK, Choyal P, Saini RP, Potkule J, Burritt DJ, Sheri V, Verma P, Chandran D, Tran LSP. Improvement of qualitative and quantitative traits in cotton under normal and stressed environments using genomics and biotechnological tools: A review. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 340:111937. [PMID: 38043729 DOI: 10.1016/j.plantsci.2023.111937] [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: 11/12/2022] [Revised: 10/29/2023] [Accepted: 11/29/2023] [Indexed: 12/05/2023]
Abstract
Due to the increasing demand for high-quality and high fiber-yielding cotton (Gossypium spp.), research into the development of stress-resilient cotton cultivars has acquired greater significance. Various biotic and abiotic stressors greatly affect cotton production and productivity, posing challenges to the future of the textile industry. Moreover, the content and quality of cottonseed oil can also potentially be influenced by future environmental conditions. Apart from conventional methods, genetic engineering has emerged as a potential tool to improve cotton fiber quality and productivity. Identification and modification of genome sequences and the expression levels of yield-related genes using genetic engineering approaches have enabled to increase both the quality and yields of cotton fiber and cottonseed oil. Herein, we evaluate the significance and molecular mechanisms associated with the regulation of cotton agronomic traits under both normal and stressful environmental conditions. In addition, the importance of gossypol, a toxic phenolic compound in cottonseed that can limit consumption by animals and humans, is reviewed and discussed.
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Affiliation(s)
- Aarti Gupta
- Department of Life Sciences, POSTECH Biotech Center, Pohang University of Science and Technology, Pohang, Republic of Korea; Institute of Genomics for Crop Abiotic Stress Tolerance, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79409, USA
| | - Manoj Kumar
- Chemical and Biochemical Processing Division, ICAR-Central Institute for Research on Cotton Technology, Mumbai, India.
| | - Baohong Zhang
- Department of Biology, East Carolina University, Greenville, NC 27858, USA
| | - Maharishi Tomar
- ICAR - Indian Grassland and Fodder Research Institute, Jhansi, India
| | | | - Prince Choyal
- ICAR - Indian Institute of Soybean Research, Indore 452001, India
| | | | - Jayashree Potkule
- Chemical and Biochemical Processing Division, ICAR-Central Institute for Research on Cotton Technology, Mumbai, India
| | - David J Burritt
- Department of Botany, University of Otago, Dunedin, New Zealand
| | - Vijay Sheri
- Department of Biology, East Carolina University, Greenville, NC 27858, USA
| | - Pooja Verma
- ICAR - Central Institute for Cotton Research, Nagpur, India
| | - Deepak Chandran
- Department of Animal Husbandry, Government of Kerala, Palakkad 679335, Kerala, India
| | - Lam-Son Phan Tran
- Institute of Genomics for Crop Abiotic Stress Tolerance, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79409, USA.
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2
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Zhang ZN, Long L, Zhao XT, Shang SZ, Xu FC, Zhao JR, Hu GY, Mi LY, Song CP, Gao W. The dual role of GoPGF reveals that the pigment glands are synthetic sites of gossypol in aerial parts of cotton. THE NEW PHYTOLOGIST 2024; 241:314-328. [PMID: 37865884 DOI: 10.1111/nph.19331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 09/28/2023] [Indexed: 10/23/2023]
Abstract
Gossypol and the related terpenoids are stored in the pigment gland to protect cotton plants from biotic stresses, but little is known about the synthetic sites of these metabolites. Here, we showed that GoPGF, a key gene regulating gland formation, was expressed in gland cells and roots. The chromatin immunoprecipitation sequencing (ChIP-seq) analysis demonstrated that GoPGF targets GhJUB1 to regulate gland morphogenesis. RNA-sequencing (RNA-seq) showed high accumulation of gossypol biosynthetic genes in gland cells. Moreover, integrated analysis of the ChIP-seq and RNA-seq data revealed that GoPGF binds to the promoter of several gossypol biosynthetic genes. The cotton callus overexpressing GoPGF had dramatically increased the gossypol levels, indicating that GoPGF can directly activate the biosynthesis of gossypol. In addition, the gopgf mutant analysis revealed the existence of both GoPGF-dependent and -independent regulation of gossypol production in cotton roots. Our study revealed that the pigment glands are synthetic sites of gossypol in aerial parts of cotton and that GoPGF plays a dual role in regulating gland morphogenesis and gossypol biosynthesis. The study provides new insights for exploring the complex relationship between glands and the metabolites they store in cotton and other plant species.
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Affiliation(s)
- Zhen-Nan Zhang
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization (Henan University), Kaifeng, Henan, 475004, China
| | - Lu Long
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization (Henan University), Kaifeng, Henan, 475004, China
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Science, Henan University, Kaifeng, Henan, 475004, China
| | - Xiao-Tong Zhao
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization (Henan University), Kaifeng, Henan, 475004, China
| | - Shen-Zhai Shang
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization (Henan University), Kaifeng, Henan, 475004, China
| | - Fu-Chun Xu
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization (Henan University), Kaifeng, Henan, 475004, China
- Changzhi Medical College, Changzhi, Shanxi, 046000, China
| | - Jing-Ruo Zhao
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization (Henan University), Kaifeng, Henan, 475004, China
| | - Gai-Yuan Hu
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization (Henan University), Kaifeng, Henan, 475004, China
- Sanya Institute of Henan University, Sanya, Hainan, 572024, China
| | - Ling-Yu Mi
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization (Henan University), Kaifeng, Henan, 475004, China
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Science, Henan University, Kaifeng, Henan, 475004, China
| | - Chun-Peng Song
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization (Henan University), Kaifeng, Henan, 475004, China
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Science, Henan University, Kaifeng, Henan, 475004, China
| | - Wei Gao
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization (Henan University), Kaifeng, Henan, 475004, China
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Science, Henan University, Kaifeng, Henan, 475004, China
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3
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Mehari TG, Fang H, Feng W, Zhang Y, Umer MJ, Han J, Ditta A, Khan MKR, Liu F, Wang K, Wang B. Genome-wide identification and expression analysis of terpene synthases in Gossypium species in response to gossypol biosynthesis. Funct Integr Genomics 2023; 23:197. [PMID: 37270747 DOI: 10.1007/s10142-023-01125-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 05/26/2023] [Accepted: 05/26/2023] [Indexed: 06/05/2023]
Abstract
Cottonseed is an invaluable resource, providing protein, oil, and abundant minerals that significantly contribute to the well-being and nutritional needs of both humans and livestock. However, cottonseed also contains a toxic substance called gossypol, a secondary metabolite in Gossypium species that plays an important role in cotton plant development and self-protection. Herein, genome-wide analysis and characterization of the terpene synthase (TPS) gene family identified 304 TPS genes in Gossypium. Bioinformatics analysis revealed that the gene family was grouped into six subgroups TPS-a, TPS-b, TPS-c, TPS-e, TPS-f, and TPS-g. Whole-genome, segmental, and tandem duplication contributed to the evolution of TPS genes. According to the analysis of selection pressure, it was predicted that TPS genes experience predominantly negative selection, with positive selection occurring subsequently. RT-qPCR analysis in TM-1 and CRI-12 lines revealed GhTPS48 gene as the candidate gene for silencing experiments. To summarize, comprehensive genome-wide studies, RT-qPCR, and gene silencing experiments have collectively demonstrated the involvement of the TPS gene family in the biosynthesis of gossypol in cotton.
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Affiliation(s)
| | - Hui Fang
- School of Life Sciences, Nantong University, Nantong, Jiangsu, 226019, China
| | - Wenxiang Feng
- School of Life Sciences, Nantong University, Nantong, Jiangsu, 226019, China
| | - Yuanyuan Zhang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China
| | - Muhammad Jawad Umer
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China
| | - Jinlei Han
- School of Life Sciences, Nantong University, Nantong, Jiangsu, 226019, China
| | - Allah Ditta
- Plant Breeding and Genetics Division, Nuclear Institute for Agriculture and Biology, Faisalabad, 38000, Pakistan
| | - Muhammad K R Khan
- Plant Breeding and Genetics Division, Nuclear Institute for Agriculture and Biology, Faisalabad, 38000, Pakistan
| | - Fang Liu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China.
| | - Kai Wang
- School of Life Sciences, Nantong University, Nantong, Jiangsu, 226019, China.
| | - Baohua Wang
- School of Life Sciences, Nantong University, Nantong, Jiangsu, 226019, China.
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4
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Kong L, Li S, Qian Y, Cheng H, Zhang Y, Zuo D, Lv L, Wang Q, Li J, Song G. Comparative Transcriptome Analysis Revealed Key Genes Regulating Gossypol Synthesis in Tetraploid Cultivated Cotton. Genes (Basel) 2023; 14:1144. [PMID: 37372323 DOI: 10.3390/genes14061144] [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: 04/09/2023] [Revised: 05/18/2023] [Accepted: 05/23/2023] [Indexed: 06/29/2023] Open
Abstract
Tetraploid cultivated cotton (Gossypium spp.) produces cottonseeds rich in protein and oil. Gossypol and related terpenoids, stored in the pigment glands of cottonseeds, are toxic to human beings and monogastric animals. However, a comprehensive understanding of the genetic basis of gossypol and gland formation is still lacking. We performed a comprehensive transcriptome analysis of four glanded versus two glandless tetraploid cultivars distributed in Gossypium hirsutum and Gossypium barbadense. A weighted gene co-expression network analysis (WGCNA) based on 431 common differentially expressed genes (DEGs) uncovered a candidate module that was strongly associated with the reduction in or disappearance of gossypol and pigment glands. Further, the co-expression network helped us to focus on 29 hub genes, which played key roles in the regulation of related genes in the candidate module. The present study contributes to our understanding of the genetic basis of gossypol and gland formation and serves as a rich potential source for breeding cotton cultivars with gossypol-rich plants and gossypol-free cottonseed, which is beneficial for improving food safety, environmental protection, and economic gains of tetraploid cultivated cotton.
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Affiliation(s)
- Linglei Kong
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
- Semi-Arid Agriculture Engineering & Technology Research Center of P. R. China, Shijiazhuang 050051, China
| | - Shaoqi Li
- Institute of Cotton, Hebei Academy of Agriculture and Forestry Sciences, Key Laboratory of Cotton Biology and Genetic Breeding in Huanghuaihai Semiarid Area, Ministry of Agriculture and Rural Affairs, National Cotton Improvement Center Hebei Branch, Shijiazhuang 050051, China
| | - Yuyuan Qian
- Institute of Cotton, Hebei Academy of Agriculture and Forestry Sciences, Key Laboratory of Cotton Biology and Genetic Breeding in Huanghuaihai Semiarid Area, Ministry of Agriculture and Rural Affairs, National Cotton Improvement Center Hebei Branch, Shijiazhuang 050051, China
| | - Hailiang Cheng
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Youping Zhang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Dongyun Zuo
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Limin Lv
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Qiaolian Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Junlan Li
- Institute of Cotton, Hebei Academy of Agriculture and Forestry Sciences, Key Laboratory of Cotton Biology and Genetic Breeding in Huanghuaihai Semiarid Area, Ministry of Agriculture and Rural Affairs, National Cotton Improvement Center Hebei Branch, Shijiazhuang 050051, China
| | - Guoli Song
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
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Luiza Atella A, Fatima Grossi-de-Sá M, Alves-Ferreira M. Cotton promoters for controlled gene expression. ELECTRON J BIOTECHN 2023. [DOI: 10.1016/j.ejbt.2022.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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6
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Gao W, Zhu X, Ding L, Xu B, Gao Y, Cheng Y, Dai F, Liu B, Si Z, Fang L, Guan X, Zhu S, Zhang T, Hu Y. Development of the engineered "glanded plant and glandless seed" cotton. FOOD CHEMISTRY. MOLECULAR SCIENCES 2022; 5:100130. [PMID: 35992508 PMCID: PMC9386459 DOI: 10.1016/j.fochms.2022.100130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 07/29/2022] [Accepted: 08/06/2022] [Indexed: 10/29/2022]
Abstract
After fiber, cottonseed is the second most important by-product of cotton production. However, high concentrations of toxic free gossypol deposited in the glands of the cottonseed greatly hamper its effective usage as food or feed. Here, we developed a cotton line with edible cottonseed by specifically silencing the endogenous expression of GoPGF in the seeds, which led to a glandless phenotype with an ultra-low gossypol content in the seeds and nearly normal gossypol in other parts of the plants. This engineered cotton maintains normal resistance to insect pests, but the gossypol content in the seeds dropped by 98%, and thus, it can be consumed directly as food. The trait of a low gossypol content in the cottonseeds was stable and heritable, while the protein, oil content, and fiber yield or quality were nearly unchanged compared to the transgenic receptor W0. In addition, comparative transcriptome analysis showed that down-regulated genes in the ovules of the glandless cotton were enriched in terpenoid biosynthesis, indicating the underlying relationship between gland formation and gossypol biosynthesis. These results pave the way for the comprehensive utilization of cotton as a fiber, oil, and feed crop in the future.
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Affiliation(s)
- Wenhao Gao
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, Institute of Crop Science, Plant Precision Breeding Academy, College of Agriculture and Biotechnology, Zhejiang University, Zhejiang 310029, China
| | - Xiefei Zhu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Lingyun Ding
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Biyu Xu
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, Institute of Crop Science, Plant Precision Breeding Academy, College of Agriculture and Biotechnology, Zhejiang University, Zhejiang 310029, China
| | - Yang Gao
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Yu Cheng
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, Institute of Crop Science, Plant Precision Breeding Academy, College of Agriculture and Biotechnology, Zhejiang University, Zhejiang 310029, China
| | - Fan Dai
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, Institute of Crop Science, Plant Precision Breeding Academy, College of Agriculture and Biotechnology, Zhejiang University, Zhejiang 310029, China
| | - Bingliang Liu
- Jiangsu Key Laboratory of Crop Genetic and Physiology & Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, China
| | - Zhanfeng Si
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, Institute of Crop Science, Plant Precision Breeding Academy, College of Agriculture and Biotechnology, Zhejiang University, Zhejiang 310029, China
| | - Lei Fang
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, Institute of Crop Science, Plant Precision Breeding Academy, College of Agriculture and Biotechnology, Zhejiang University, Zhejiang 310029, China
| | - Xueying Guan
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, Institute of Crop Science, Plant Precision Breeding Academy, College of Agriculture and Biotechnology, Zhejiang University, Zhejiang 310029, China
| | - Shuijin Zhu
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, Institute of Crop Science, Plant Precision Breeding Academy, College of Agriculture and Biotechnology, Zhejiang University, Zhejiang 310029, China
| | - Tianzhen Zhang
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, Institute of Crop Science, Plant Precision Breeding Academy, College of Agriculture and Biotechnology, Zhejiang University, Zhejiang 310029, China
| | - Yan Hu
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, Institute of Crop Science, Plant Precision Breeding Academy, College of Agriculture and Biotechnology, Zhejiang University, Zhejiang 310029, China
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Pandeya D, Campbell LM, Puckhaber L, Suh C, Rathore KS. Gossypol and related compounds are produced and accumulate in the aboveground parts of the cotton plant, independent of roots as the source. PLANTA 2022; 257:21. [PMID: 36538120 DOI: 10.1007/s00425-022-04049-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 12/09/2022] [Indexed: 06/17/2023]
Abstract
Use of Ultra-low gossypol cottonseed event as a scion in a graft combination confirmed that roots are not a source of terpenoids in the aboveground parts of a cotton plant. Gossypol and related terpenoids, derived from the same basic biosynthetic pathway, are present in the numerous lysigenous glands in the aboveground parts of a cotton plant. Roots, with sparse presence of such glands, do produce significant amount of gossypol and a different set of terpenoids. These compounds serve a defensive function against various pests and pathogens. This investigation was undertaken to examine whether gossypol produced in the roots can replenish the gossypol content of the cottonseed-glands that are largely devoid of this terpenoid in a genetically engineered event. Graft unions between a scion derived from the RNAi-based, Ultra-low gossypol cottonseed (ULGCS) event, TAM66274, and a rootstock derived from wild-type parental genotype, Coker 312 (Coker), were compared with various other grafts that served as controls. The results showed that the seeds developing within the scion of test grafts (ULGCS/Coker) continued to maintain the ultra-low gossypol levels found in the TAM66274 seeds. Molecular analyses confirmed that while the key gene involved in gland development showed normal activity in the developing embryos in the scion, two genes encoding the enzymes involved in gossypol biosynthesis were suppressed. Thus, the gene expression data confirmed the results obtained from biochemical measurements and collectively demonstrated that roots are not a source of gossypol for the aboveground parts of the cotton plant. These findings, combined with the results from previous investigations, support the assertion that gossypol and related terpenoids are produced in a highly localized manner in various organs of the cotton plant and are retained therein.
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Affiliation(s)
- Devendra Pandeya
- Department of Soil & Crop Sciences, Texas A & M University, College Station, TX, USA
| | - LeAnne M Campbell
- Department of Soil & Crop Sciences, Texas A & M University, College Station, TX, USA
| | - Lorraine Puckhaber
- Southern Plains Agricultural Research Center, USDA-ARS, College Station, TX, USA
| | - Charles Suh
- Southern Plains Agricultural Research Center, USDA-ARS, College Station, TX, USA
| | - Keerti S Rathore
- Department of Soil & Crop Sciences, Texas A & M University, College Station, TX, USA.
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Zhang J, Wedegaertner T. Genetics and Breeding for Glandless Upland Cotton With Improved Yield Potential and Disease Resistance: A Review. FRONTIERS IN PLANT SCIENCE 2021; 12:753426. [PMID: 34691130 PMCID: PMC8526788 DOI: 10.3389/fpls.2021.753426] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 09/14/2021] [Indexed: 05/28/2023]
Abstract
Glandless cotton (devoid of toxic gossypol) can be grown as a triple-purpose crop for fiber, feeds, and food (as an oil and protein source). However, its sensitivity to insect pests and its low yield due to the lack of breeding activities has prevented the realization of its potential in commercial seed production and utilization. Since the mid-1990s, the commercialization of bollworm and budworm resistant Bt cotton and the eradication of boll weevils and pink bollworms have provided an opportunity to revitalize glandless cotton production in the United States. The objectives of this study were to review the current status of genetics and breeding for glandless cotton, with a focus on the progress in breeding for glandless Upland cotton in New Mexico, United States. Because there existed a 10-20% yield gap between the best existing glandless germplasm and commercial Upland cultivars, the breeding of glandless Upland cultivars with improved yield and disease resistance was initiated at the New Mexico State University more than a decade ago. As a result, three glandless Upland cultivars, i.e., long-staple Acala 1517-18 GLS, medium staple NuMex COT 15 GLS, and NuMex COT 17 GLS with Fusarium wilt race 4 resistance were released. However, to compete with the current commercial glanded cotton, more breeding efforts are urgently needed to introduce different glandless traits (natural mutations, transgenic or genome-editing) into elite cotton backgrounds with high yields and desirable fiber quality.
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Affiliation(s)
- Jinfa Zhang
- Department of Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM, United States
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9
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Gene Expression Correlation Analysis Reveals MYC-NAC Regulatory Network in Cotton Pigment Gland Development. Int J Mol Sci 2021; 22:ijms22095007. [PMID: 34066899 PMCID: PMC8125883 DOI: 10.3390/ijms22095007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/21/2021] [Accepted: 04/28/2021] [Indexed: 11/17/2022] Open
Abstract
Plant NAC (NAM, ATAF1/2, and CUC2) family is involved in various development processes including Programmed Cell Death (PCD) associated development. However, the relationship between NAC family and PCD-associated cotton pigment gland development is largely unknown. In this study, we identified 150, 153 and 299 NAC genes in newly updated genome sequences of G. arboreum, G. raimondii and G. hirsutum, respectively. All NAC genes were divided into 8 groups by the phylogenetic analysis and most of them were conserved during cotton evolution. Using the vital regulator of gland formation GhMYC2-like as bait, expression correlation analysis screened out 6 NAC genes which were low-expressed in glandless cotton and high-expressed in glanded cotton. These 6 NAC genes acted downstream of GhMYC2-like and were induced by MeJA. Silencing CGF1(Cotton Gland Formation1), another MYC-coding gene, caused almost glandless phenotype and down-regulated expression of GhMYC2-like and the 6 NAC genes, indicating a MYC-NAC regulatory network in gland development. In addition, predicted regulatory mechanism showed that the 6 NAC genes were possibly regulated by light, various phytohormones and transcription factors as well as miRNAs. The interaction network and DNA binding sites of the 6 NAC transcription factors were also predicted. These results laid the foundation for further study of gland-related genes and gland development regulatory network.
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10
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Cao H, Sethumadhavan K, Cao F, Wang TTY. Gossypol decreased cell viability and down-regulated the expression of a number of genes in human colon cancer cells. Sci Rep 2021; 11:5922. [PMID: 33723275 PMCID: PMC7961146 DOI: 10.1038/s41598-021-84970-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 02/22/2021] [Indexed: 02/06/2023] Open
Abstract
Plant polyphenol gossypol has anticancer activities. This may increase cottonseed value by using gossypol as a health intervention agent. It is necessary to understand its molecular mechanisms before human consumption. The aim was to uncover the effects of gossypol on cell viability and gene expression in cancer cells. In this study, human colon cancer cells (COLO 225) were treated with gossypol. MTT assay showed significant inhibitory effect under high concentration and longtime treatment. We analyzed the expression of 55 genes at the mRNA level in the cells; many of them are regulated by gossypol or ZFP36/TTP in cancer cells. BCL2 mRNA was the most stable among the 55 mRNAs analyzed in human colon cancer cells. GAPDH and RPL32 mRNAs were not good qPCR references for the colon cancer cells. Gossypol decreased the mRNA levels of DGAT, GLUT, TTP, IL families and a number of previously reported genes. In particular, gossypol suppressed the expression of genes coding for CLAUDIN1, ELK1, FAS, GAPDH, IL2, IL8 and ZFAND5 mRNAs, but enhanced the expression of the gene coding for GLUT3 mRNA. The results showed that gossypol inhibited cell survival with decreased expression of a number of genes in the colon cancer cells.
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Affiliation(s)
- Heping Cao
- grid.507314.40000 0001 0668 8000United States Department of Agriculture, Agricultural Research Service, Southern Regional Research Center, 1100 Robert E. Lee Boulevard, New Orleans, LA 70124 USA
| | - Kandan Sethumadhavan
- grid.507314.40000 0001 0668 8000United States Department of Agriculture, Agricultural Research Service, Southern Regional Research Center, 1100 Robert E. Lee Boulevard, New Orleans, LA 70124 USA
| | - Fangping Cao
- grid.66741.320000 0001 1456 856XBeijing Forestry University, No. 35 Tsinghua East Road, Haidian District, Beijing, 100083 China
| | - Thomas T. Y. Wang
- grid.508988.4United States Department of Agriculture, Agricultural Research Service, Beltsville Human Nutrition Research Center, 10300 Baltimore Ave, Beltsville, MD 20705 USA
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11
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Gao W, Xu F, Long L, Li Y, Zhang J, Chong L, Botella JR, Song C. The gland localized CGP1 controls gland pigmentation and gossypol accumulation in cotton. PLANT BIOTECHNOLOGY JOURNAL 2020; 18:1573-1584. [PMID: 31883409 PMCID: PMC7292540 DOI: 10.1111/pbi.13323] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 12/06/2019] [Accepted: 12/08/2019] [Indexed: 05/21/2023]
Abstract
Pigment glands, also known as black glands or gossypol glands, are specific for Gossypium spp. These glands strictly confine large amounts of secondary metabolites to the lysigenous cavity, leading to the glands' intense colour and providing defence against pests and pathogens. This study performed a comparative transcriptome analysis of glanded versus glandless cotton cultivars. Twenty-two transcription factors showed expression patterns associated with pigment glands and were characterized. Phenotypic screening of the genes, via virus-induced gene silencing, showed an apparent disappearance of pigmented glands after the silencing of a pair of homologous MYB-encoding genes in the A and D genomes (designated as CGP1). Further study showed that CGP1a encodes an active transcription factor, which is specifically expressed in the gland structure, while CGP1d encodes a non-functional protein due to a fragment deletion, which causes premature termination. RNAi-mediated silencing and CRISPR knockout of CGP1 in glanded cotton cultivars generated a glandless-like phenotype, similar to the dominant glandless mutant Gl2e . Microscopic analysis showed that CGP1 knockout did not affect gland structure or density, but affected gland pigmentation. The levels of gossypol and related terpenoids were significantly decreased in cgp1 mutants, and a number of gossypol biosynthetic genes were strongly down-regulated. CGP1 is located in the nucleus where it interacts with GoPGF, a critical transcription factor for gland development and gossypol synthesis. Our data suggest that CGP1 and GoPGF form heterodimers to control the synthesis of gossypol and other secondary metabolites in cotton.
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Affiliation(s)
- Wei Gao
- State Key Laboratory of Cotton BiologySchool of Life ScienceHenan UniversityKaifengChina
- State Key Laboratory of Crop Stress Adaptation and ImprovementHenan UniversityKaifengChina
| | - Fu‐Chun Xu
- State Key Laboratory of Cotton BiologySchool of Life ScienceHenan UniversityKaifengChina
- State Key Laboratory of Crop Stress Adaptation and ImprovementHenan UniversityKaifengChina
| | - Lu Long
- State Key Laboratory of Cotton BiologySchool of Life ScienceHenan UniversityKaifengChina
- State Key Laboratory of Crop Stress Adaptation and ImprovementHenan UniversityKaifengChina
| | - Yang Li
- State Key Laboratory of Crop Stress Adaptation and ImprovementHenan UniversityKaifengChina
| | - Jun‐Li Zhang
- State Key Laboratory of Crop Stress Adaptation and ImprovementHenan UniversityKaifengChina
| | - Leelyn Chong
- State Key Laboratory of Crop Stress Adaptation and ImprovementHenan UniversityKaifengChina
| | - Jose Ramon Botella
- State Key Laboratory of Crop Stress Adaptation and ImprovementHenan UniversityKaifengChina
- School of Agriculture and Food SciencesUniversity of QueenslandBrisbaneQldAustralia
| | - Chun‐Peng Song
- State Key Laboratory of Cotton BiologySchool of Life ScienceHenan UniversityKaifengChina
- State Key Laboratory of Crop Stress Adaptation and ImprovementHenan UniversityKaifengChina
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Hagenbucher S, Eisenring M, Meissle M, Rathore KS, Romeis J. Constitutive and induced insect resistance in RNAi-mediated ultra-low gossypol cottonseed cotton. BMC PLANT BIOLOGY 2019; 19:322. [PMID: 31319793 PMCID: PMC6639952 DOI: 10.1186/s12870-019-1921-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 07/03/2019] [Indexed: 06/01/2023]
Abstract
BACKGROUND Besides fibers, cotton plants also produce a large amount of seeds with a high oil and protein content. The use of these seeds is restricted by their high contents of the terpenoid gossypol, which is harmful to humans and livestock. Using a genetic engineering approach, "Ultra-low gossypol cottonseed" (ULGCS) plants were produced by knocking down an enzyme that catalyzes the formation of a precursor of gossypol. This was accomplished via RNAi-mediated silencing of the target gene using a seed-specific α-globulin promotor. Since gossypol is also a crucial defense mechanism against leaf-feeding herbivores, ULGCS plants might possess lower herbivore resistance than non-engineered plants. Therefore, we tested the constitutive and inducible direct insect resistance of two ULGCS cotton lines against the African cotton leafworm, Spodoptera littoralis. RESULT The herbivore was equally affected by both ULGCS lines and the control (Coker 312) line when feeding on fully expanded true leaves from undamaged plants and plants induced by jasmonic acid. When plants were induced by caterpillar-damage, however, S. littoralis larvae performed better on the ULGCS plants. Terpenoid analyses revealed that the ULGCS lines were equally inducible as the control plants. Levels of terpenoids were always lower in one of the two lines. In the case of cotyledons, caterpillars performed better on ULGCS cotton than on conventional cotton. This was likely caused by reduced levels of gossypol in ULGCS cotyledons. CONCLUSION Despite those effects, the insect resistance of ULGSC cotton can be considered as largely intact and the plants may, therefore, be an interesting alternative to conventional cotton varieties.
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Affiliation(s)
- Steffen Hagenbucher
- Agroscope, Research Division Agroecology and Environment, Reckenholzstrasse 191, 8046 Zürich, Switzerland
| | - Michael Eisenring
- Agroscope, Research Division Agroecology and Environment, Reckenholzstrasse 191, 8046 Zürich, Switzerland
| | - Michael Meissle
- Agroscope, Research Division Agroecology and Environment, Reckenholzstrasse 191, 8046 Zürich, Switzerland
| | - Keerti S. Rathore
- Department of Soil and Crop Sciences, Institute for Plant Genomics & Biotechnology, Texas A&M University, College Station, TX USA
| | - Jörg Romeis
- Agroscope, Research Division Agroecology and Environment, Reckenholzstrasse 191, 8046 Zürich, Switzerland
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Janga MR, Pandeya D, Campbell LM, Konganti K, Villafuerte ST, Puckhaber L, Pepper A, Stipanovic RD, Scheffler JA, Rathore KS. Genes regulating gland development in the cotton plant. PLANT BIOTECHNOLOGY JOURNAL 2019; 17:1142-1153. [PMID: 30467959 PMCID: PMC6523598 DOI: 10.1111/pbi.13044] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 11/12/2018] [Accepted: 11/20/2018] [Indexed: 05/21/2023]
Abstract
In seeds and other parts of cultivated, tetraploid cotton (Gossypium hirsutum L.), multicellular groups of cells lysigenously form dark glands containing toxic terpenoids such as gossypol that defend the plant against pests and pathogens. Using RNA-seq analysis of embryos from near-isogenic glanded (Gl2 Gl2 Gl3 Gl3 ) versus glandless (gl2 gl2 gl3 gl3 ) plants, we identified 33 genes that expressed exclusively or at higher levels in embryos just prior to gland formation in glanded plants. Virus-induced gene silencing against three gene pairs led to significant reductions in the number of glands in the leaves, and significantly lower levels of gossypol and related terpenoids. These genes encode transcription factors and have been designated the 'Cotton Gland Formation' (CGF) genes. No sequence differences were found between glanded and glandless cotton for CGF1 and CGF2 gene pairs. The glandless cotton has a transposon insertion within the coding sequence of the GoPGF (synonym CGF3) gene of the A subgenome and extensive mutations in the promoter of D subgenome homeolog. Overexpression of GoPGF (synonym CGF3) led to a dramatic increase in gossypol and related terpenoids in cultured cells, whereas CRISPR/Cas9 knockout of GoPGF (synonym CGF3) genes resulted in glandless phenotype. Taken collectively, the results show that the GoPGF (synonym CGF3) gene plays a critical role in the formation of glands in the cotton plant. Seed-specific silencing of CGF genes, either individually or in combination, could eliminate glands, thus gossypol, from the cottonseed to render it safe as food or feed for monogastrics.
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Affiliation(s)
- Madhusudhana R. Janga
- Institute for Plant Genomics and BiotechnologyTexas A&M UniversityCollege StationTXUSA
| | - Devendra Pandeya
- Institute for Plant Genomics and BiotechnologyTexas A&M UniversityCollege StationTXUSA
| | - LeAnne M. Campbell
- Institute for Plant Genomics and BiotechnologyTexas A&M UniversityCollege StationTXUSA
| | - Kranti Konganti
- Texas A&M Institute for Genome Sciences and SocietyTexas A&M UniversityCollege StationTXUSA
| | | | - Lorraine Puckhaber
- Southern Plains Agricultural Research CenterUSDA‐ARSCollege StationTXUSA
| | - Alan Pepper
- Department of BiologyTexas A&M UniversityCollege StationTXUSA
| | | | | | - Keerti S. Rathore
- Institute for Plant Genomics and BiotechnologyTexas A&M UniversityCollege StationTXUSA
- Department of Soil and Crop SciencesTexas A&M UniversityCollege StationTXUSA
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Isolation of Cottonseed Extracts That Affect Human Cancer Cell Growth. Sci Rep 2018; 8:10458. [PMID: 29993017 PMCID: PMC6041348 DOI: 10.1038/s41598-018-28773-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 06/29/2018] [Indexed: 12/19/2022] Open
Abstract
Cottonseeds are classified as glanded or glandless seeds depending on the presence or absence of gossypol glands. Glanded cottonseed has anticancer property and glandless cottonseed was reported to cause cancer in one animal study. It is important to investigate the effect of bioactive components from cottonseeds. Our objectives were to isolate ethanol extracts from cottonseeds and investigate their effects on human cancer cells. A protocol was developed for isolating bioactive extracts from seed coat and kernel of glanded and glandless cottonseeds. HPLC-MS analyzed the four ethanol extracts but only quercetin was identified in the glandless seed coat extract. Residual gossypol was detected in the glanded and glandless seed kernel extracts and but only in the glanded seed coat extract. Ethanol extracts were used to treat human cancer cells derived from breast and pancreas followed by MTT assay for cell viability. Ethanol extracts from glanded and glandless cottonseed kernels and gossypol significantly decreased breast cancer cell mitochondrial activity. Ethanol extract from glanded cottonseed kernel and gossypol also significantly decreased pancreas cancer cell mitochondrial activity. These results suggest that ethanol extracts from cottonseeds, like gossypol, contain anticancer activities.
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Sturtevant D, Horn P, Kennedy C, Hinze L, Percy R, Chapman K. Lipid metabolites in seeds of diverse Gossypium accessions: molecular identification of a high oleic mutant allele. PLANTA 2017; 245:595-610. [PMID: 27988885 DOI: 10.1007/s00425-016-2630-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 11/30/2016] [Indexed: 05/12/2023]
Abstract
Genetically diverse cottonseeds show altered compositions and spatial distributions of phosphatidylcholines and triacylglycerols. Lipidomics profiling led to the discovery of a novel FAD2 - 1 allele, fad2 - 1D - 1 , resulting in a high oleic phenotype. The domestication and breeding of cotton for elite, high-fiber cultivars have led to reduced variation of seed constituents within currently cultivated upland cotton genotypes. However, a recent screen of the genetically diverse U.S. National Cotton Germplasm Collection identified Gossypium accessions with marked differences in seed oil and protein content. Here, several of these accessions representing substantial variation in seed oil content were analyzed for quantitative and spatial differences in lipid compositions by mass spectrometric approaches. Results indicate considerable variation in amount and spatial distribution of pathway metabolites for triacylglycerol biosynthesis in embryos across Gossypium accessions, suggesting that this variation might be exploited by breeders for seed composition traits. By way of example, these lipid metabolite differences led to the identification of a mutant allele of the D-subgenome homolog of the delta-12 desaturase (fad2-1D-1) in a wild accession of G. barbadense that has a high oil and high oleic seed phenotype. This mutation is a 90-bp insertion in the 3' end of the FAD2-1D coding sequence and a modification of the 3' end of the gene beyond the coding sequence leading to the introduction of a premature stop codon. Given the large amounts of cottonseed produced around the world that is currently not processed into higher value products, these efforts might be one avenue to raise the overall value of the cotton crop for producers.
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Affiliation(s)
- Drew Sturtevant
- Department of Biological Sciences, Center for Plant Lipid Research, BioDiscovery Institute, University of North Texas, 1155 Union Circle #305220, Denton, TX, 76203-5217, USA
| | - Patrick Horn
- Department of Biological Sciences, Center for Plant Lipid Research, BioDiscovery Institute, University of North Texas, 1155 Union Circle #305220, Denton, TX, 76203-5217, USA
- U.S. Department of Energy Plant Research Laboratory, Michigan State University, East Lansing, MI, 48824, USA
| | - Christopher Kennedy
- Department of Biological Sciences, Center for Plant Lipid Research, BioDiscovery Institute, University of North Texas, 1155 Union Circle #305220, Denton, TX, 76203-5217, USA
| | - Lori Hinze
- USDA/ARS, Southern Plains Agricultural Research Center, College Station, TX, 77845, USA
| | - Richard Percy
- USDA/ARS, Southern Plains Agricultural Research Center, College Station, TX, 77845, USA
| | - Kent Chapman
- Department of Biological Sciences, Center for Plant Lipid Research, BioDiscovery Institute, University of North Texas, 1155 Union Circle #305220, Denton, TX, 76203-5217, USA.
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16
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Cheng H, Lu C, Yu JZ, Zou C, Zhang Y, Wang Q, Huang J, Feng X, Jiang P, Yang W, Song G. Fine mapping and candidate gene analysis of the dominant glandless gene Gl 2 (e) in cotton (Gossypium spp.). TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2016; 129:1347-1355. [PMID: 27053187 DOI: 10.1007/s00122-016-2707-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 03/17/2016] [Indexed: 05/21/2023]
Abstract
Dominant glandless gene Gl 2 (e) was fine-mapped to a 15 kb region containing one candidate gene encoding an MYC transcription factor, sequence and expression level of the gene were analyzed. Cottonseed product is an excellent source of oil and protein. However, this nutrition source is greatly limited in utilization by the toxic gossypol in pigment glands. It is reported that the Gl 2 (e) gene could effectively inhibit the formation of the pigment glands. Here, three F2 populations were constructed using two pairs of near isogenic lines (NILs), which differ nearly only by the gland trait, for fine mapping of Gl 2 (e) . DNA markers were identified from recently developed cotton genome sequence. The Gl 2 (e) gene was located within a 15-kb genomic interval between two markers CS2 and CS4 on chromosome 12. Only one gene was identified in the genomic interval as the candidate for Gl 2 (e) which encodes a family member of MYC transcription factor with 475-amino acids. Unexpectedly, the results of expression analysis indicated that the MYC gene expresses in glanded lines while almost does not express in glandless lines. These results suggest that the MYC gene probably serves as a vital positive regulator in the organogenesis pathway of pigment gland, and low expression of this gene will not launch the downstream pathway of pigment gland formation. This is the first pigment gland-related gene identification in cotton and will facilitate the research on glandless trait, cotton MYC proteins and low-gossypol cotton breeding.
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Affiliation(s)
- Hailiang Cheng
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Cairui Lu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - John Z Yu
- USDA-ARS, Southern Plains Agricultural Research Center, Crop Germplasm Research Unit, 2881 F&B Road, College Station, TX, 77845, USA
| | - Changsong Zou
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Youping Zhang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Qiaolian Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Juan Huang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Xiaoxu Feng
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Pengfei Jiang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Wencui Yang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Guoli Song
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China.
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Trapero C, Wilson IW, Stiller WN, Wilson LJ. Enhancing Integrated Pest Management in GM Cotton Systems Using Host Plant Resistance. FRONTIERS IN PLANT SCIENCE 2016; 7:500. [PMID: 27148323 PMCID: PMC4840675 DOI: 10.3389/fpls.2016.00500] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 03/29/2016] [Indexed: 05/12/2023]
Abstract
Cotton has lost many ancestral defensive traits against key invertebrate pests. This is suggested by the levels of resistance to some pests found in wild cotton genotypes as well as in cultivated landraces and is a result of domestication and a long history of targeted breeding for yield and fiber quality, along with the capacity to control pests with pesticides. Genetic modification (GM) allowed integration of toxins from a bacteria into cotton to control key Lepidopteran pests. Since the mid-1990s, use of GM cotton cultivars has greatly reduced the amount of pesticides used in many cotton systems. However, pests not controlled by the GM traits have usually emerged as problems, especially the sucking bug complex. Control of this complex with pesticides often causes a reduction in beneficial invertebrate populations, allowing other secondary pests to increase rapidly and require control. Control of both sucking bug complex and secondary pests is problematic due to the cost of pesticides and/or high risk of selecting for pesticide resistance. Deployment of host plant resistance (HPR) provides an opportunity to manage these issues in GM cotton systems. Cotton cultivars resistant to the sucking bug complex and/or secondary pests would require fewer pesticide applications, reducing costs and risks to beneficial invertebrate populations and pesticide resistance. Incorporation of HPR traits into elite cotton cultivars with high yield and fiber quality offers the potential to further reduce pesticide use and increase the durability of pest management in GM cotton systems. We review the challenges that the identification and use of HPR against invertebrate pests brings to cotton breeding. We explore sources of resistance to the sucking bug complex and secondary pests, the mechanisms that control them and the approaches to incorporate these defense traits to commercial cultivars.
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18
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Abdurakhmonov IY, Ayubov MS, Ubaydullaeva KA, Buriev ZT, Shermatov SE, Ruziboev HS, Shapulatov UM, Saha S, Ulloa M, Yu JZ, Percy RG, Devor EJ, Sharma GC, Sripathi VR, Kumpatla SP, van der Krol A, Kater HD, Khamidov K, Salikhov SI, Jenkins JN, Abdukarimov A, Pepper AE. RNA Interference for Functional Genomics and Improvement of Cotton (Gossypium sp.). FRONTIERS IN PLANT SCIENCE 2016; 7:202. [PMID: 26941765 PMCID: PMC4762190 DOI: 10.3389/fpls.2016.00202] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 02/05/2016] [Indexed: 02/05/2023]
Abstract
RNA interference (RNAi), is a powerful new technology in the discovery of genetic sequence functions, and has become a valuable tool for functional genomics of cotton (Gossypium sp.). The rapid adoption of RNAi has replaced previous antisense technology. RNAi has aided in the discovery of function and biological roles of many key cotton genes involved in fiber development, fertility and somatic embryogenesis, resistance to important biotic and abiotic stresses, and oil and seed quality improvements as well as the key agronomic traits including yield and maturity. Here, we have comparatively reviewed seminal research efforts in previously used antisense approaches and currently applied breakthrough RNAi studies in cotton, analyzing developed RNAi methodologies, achievements, limitations, and future needs in functional characterizations of cotton genes. We also highlighted needed efforts in the development of RNAi-based cotton cultivars, and their safety and risk assessment, small and large-scale field trials, and commercialization.
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Affiliation(s)
- Ibrokhim Y. Abdurakhmonov
- Center of Genomics and Bioinformatics, Structural and Functional Genomics, Academy of Sciences the Republic of Uzbekistan, Ministry of Agriculture and Water Resources the Republic of Uzbekistan and “Uzpakhtasanoat” AssociationKibray, Uzbekistan
- *Correspondence: Ibrokhim Y. Abdurakhmonov,
| | - Mirzakamol S. Ayubov
- Center of Genomics and Bioinformatics, Structural and Functional Genomics, Academy of Sciences the Republic of Uzbekistan, Ministry of Agriculture and Water Resources the Republic of Uzbekistan and “Uzpakhtasanoat” AssociationKibray, Uzbekistan
| | - Khurshida A. Ubaydullaeva
- Center of Genomics and Bioinformatics, Structural and Functional Genomics, Academy of Sciences the Republic of Uzbekistan, Ministry of Agriculture and Water Resources the Republic of Uzbekistan and “Uzpakhtasanoat” AssociationKibray, Uzbekistan
| | - Zabardast T. Buriev
- Center of Genomics and Bioinformatics, Structural and Functional Genomics, Academy of Sciences the Republic of Uzbekistan, Ministry of Agriculture and Water Resources the Republic of Uzbekistan and “Uzpakhtasanoat” AssociationKibray, Uzbekistan
| | - Shukhrat E. Shermatov
- Center of Genomics and Bioinformatics, Structural and Functional Genomics, Academy of Sciences the Republic of Uzbekistan, Ministry of Agriculture and Water Resources the Republic of Uzbekistan and “Uzpakhtasanoat” AssociationKibray, Uzbekistan
| | - Haydarali S. Ruziboev
- Center of Genomics and Bioinformatics, Structural and Functional Genomics, Academy of Sciences the Republic of Uzbekistan, Ministry of Agriculture and Water Resources the Republic of Uzbekistan and “Uzpakhtasanoat” AssociationKibray, Uzbekistan
| | - Umid M. Shapulatov
- Center of Genomics and Bioinformatics, Structural and Functional Genomics, Academy of Sciences the Republic of Uzbekistan, Ministry of Agriculture and Water Resources the Republic of Uzbekistan and “Uzpakhtasanoat” AssociationKibray, Uzbekistan
- Laboratory of Plant Physiology, Wageningen UniversityWageningen, Netherlands
| | - Sukumar Saha
- Crop Science Research Laboratory, United States Department of Agriculture – Agricultural Research Service, StarkvilleMS, USA
| | - Mauricio Ulloa
- Plant Stress and Germplasm Development Research, United States Department of Agriculture – Agricultural Research Service, LubbockTX, USA
| | - John Z. Yu
- Crop Germplasm Research Unit, United States Department of Agriculture – Agricultural Research Service, College StationTX, USA
| | - Richard G. Percy
- Crop Germplasm Research Unit, United States Department of Agriculture – Agricultural Research Service, College StationTX, USA
| | - Eric J. Devor
- Department of Obstetrics and Gynecology, University of Iowa Carver College of Medicine, Iowa CityIA, USA
| | - Govind C. Sharma
- Department of Biological and Environmental Sciences, Alabama A&M University, NormalAL, USA
| | | | | | | | - Hake D. Kater
- Agricultural and Environmental Research, CaryNC, USA
| | - Khakimdjan Khamidov
- Center of Genomics and Bioinformatics, Structural and Functional Genomics, Academy of Sciences the Republic of Uzbekistan, Ministry of Agriculture and Water Resources the Republic of Uzbekistan and “Uzpakhtasanoat” AssociationKibray, Uzbekistan
| | - Shavkat I. Salikhov
- Center of Genomics and Bioinformatics, Structural and Functional Genomics, Academy of Sciences the Republic of Uzbekistan, Ministry of Agriculture and Water Resources the Republic of Uzbekistan and “Uzpakhtasanoat” AssociationKibray, Uzbekistan
| | - Johnie N. Jenkins
- Crop Science Research Laboratory, United States Department of Agriculture – Agricultural Research Service, StarkvilleMS, USA
| | - Abdusattor Abdukarimov
- Center of Genomics and Bioinformatics, Structural and Functional Genomics, Academy of Sciences the Republic of Uzbekistan, Ministry of Agriculture and Water Resources the Republic of Uzbekistan and “Uzpakhtasanoat” AssociationKibray, Uzbekistan
| | - Alan E. Pepper
- Department of Biology, Texas A&M University, Colleges StationTX, USA
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19
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Casacuberta JM, Devos Y, du Jardin P, Ramon M, Vaucheret H, Nogué F. Biotechnological uses of RNAi in plants: risk assessment considerations. Trends Biotechnol 2015; 33:145-7. [PMID: 25721261 DOI: 10.1016/j.tibtech.2014.12.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 12/04/2014] [Accepted: 12/15/2014] [Indexed: 10/23/2022]
Abstract
RNAi offers opportunities to generate new traits in genetically modified (GM) plants. Instead of expressing novel proteins, RNAi-based GM plants reduce target gene expression. Silencing of off-target genes may trigger unintended effects, and identifying these genes would facilitate risk assessment. However, using bioinformatics alone is not reliable, due to the lack of genomic data and insufficient knowledge of mechanisms governing mRNA-small (s)RNA interactions.
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Affiliation(s)
- Josep M Casacuberta
- Center for Research in Agricultural Genomics, Consejo Superior de Investigaciones Científicas-Institut de Recerca i Tecnologia Agroalimentàries-Universitat Autònoma de Barcelona-Universitat de Barcelona, Campus Universitat Autònoma de Barcelona, Bellaterra - Cerdanyola del Vallès, 08193, Barcelona, Spain
| | - Yann Devos
- European Food Safety Authority, Via Carlo Magno 1/A, 43126 Parma, Italy
| | - Patrick du Jardin
- Gembloux Agro-Bio Tech, Plant Biology Unit, University of Liège, Gembloux, Belgium
| | - Matthew Ramon
- European Food Safety Authority, Via Carlo Magno 1/A, 43126 Parma, Italy
| | - Hervé Vaucheret
- INRA, Institut Jean-Pierre Bourgin, Saclay Plant Sciences, Versailles, France; AgroParisTech, Institut Jean-Pierre Bourgin, Saclay Plant Sciences, Versailles, France
| | - Fabien Nogué
- INRA, Institut Jean-Pierre Bourgin, Saclay Plant Sciences, Versailles, France; AgroParisTech, Institut Jean-Pierre Bourgin, Saclay Plant Sciences, Versailles, France.
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20
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Kamthan A, Chaudhuri A, Kamthan M, Datta A. Small RNAs in plants: recent development and application for crop improvement. FRONTIERS IN PLANT SCIENCE 2015; 6:208. [PMID: 25883599 PMCID: PMC4382981 DOI: 10.3389/fpls.2015.00208] [Citation(s) in RCA: 120] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 03/16/2015] [Indexed: 05/19/2023]
Abstract
The phenomenon of RNA interference (RNAi) which involves sequence-specific gene regulation by small non-coding RNAs, i.e., small interfering RNA (siRNA) and microRNA (miRNA) has emerged as one of most powerful approaches for crop improvement. RNAi based on siRNA is one of the widely used tools of reverse genetics which aid in revealing gene functions in many species. This technology has been extensively applied to alter the gene expression in plants with an aim to achieve desirable traits. RNAi has been used for enhancing the crop yield and productivity by manipulating the gene involved in biomass, grain yield and enhanced shelf life of fruits and vegetables. It has also been applied for developing resistance against various biotic (bacteria, fungi, viruses, nematodes, insects) and abiotic stresses (drought, salinity, cold, etc.). Nutritional improvements of crops have also been achieved by enriching the crops with essential amino acids, fatty acids, antioxidants and other nutrients beneficial for human health or by reducing allergens or anti-nutrients. microRNAs are key regulators of important plant processes like growth, development, and response to various stresses. In spite of similarity in size (20-24 nt), miRNA differ from siRNA in precursor structures, pathway of biogenesis, and modes of action. This review also highlights the miRNA based genetic modification technology where various miRNAs/artificial miRNAs and their targets can be utilized for improving several desirable plant traits. microRNA based strategies are much efficient than siRNA-based RNAi strategies due to its specificity and less undesirable off target effects. As per the FDA guidelines, small RNA (sRNA) based transgenics are much safer for consumption than those over-expressing proteins. This review thereby summarizes the emerging advances and achievement in the field of sRNAs and its application for crop improvement.
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Affiliation(s)
- Ayushi Kamthan
- National Institute of Plant Genome ResearchNew Delhi, India
| | | | - Mohan Kamthan
- Indian Institute of Toxicology ResearchLucknow, India
| | - Asis Datta
- National Institute of Plant Genome ResearchNew Delhi, India
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Saurabh S, Vidyarthi AS, Prasad D. RNA interference: concept to reality in crop improvement. PLANTA 2014; 239:543-64. [PMID: 24402564 DOI: 10.1007/s00425-013-2019-5] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Accepted: 12/21/2013] [Indexed: 05/18/2023]
Abstract
The phenomenon of RNA interference (RNAi) is involved in sequence-specific gene regulation driven by the introduction of dsRNA resulting in inhibition of translation or transcriptional repression. Since the discovery of RNAi and its regulatory potentials, it has become evident that RNAi has immense potential in opening a new vista for crop improvement. RNAi technology is precise, efficient, stable and better than antisense technology. It has been employed successfully to alter the gene expression in plants for better quality traits. The impact of RNAi to improve the crop plants has proved to be a novel approach in combating the biotic and abiotic stresses and the nutritional improvement in terms of bio-fortification and bio-elimination. It has been employed successfully to bring about modifications of several desired traits in different plants. These modifications include nutritional improvements, reduced content of food allergens and toxic compounds, enhanced defence against biotic and abiotic stresses, alteration in morphology, crafting male sterility, enhanced secondary metabolite synthesis and seedless plant varieties. However, crop plants developed by RNAi strategy may create biosafety risks. So, there is a need for risk assessment of GM crops in order to make RNAi a better tool to develop crops with biosafety measures. This article is an attempt to review the RNAi, its biochemistry, and the achievements attributed to the application of RNAi in crop improvement.
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Affiliation(s)
- Satyajit Saurabh
- Department of Biotechnology, Birla Institute of Technology, Mesra, Ranchi, 835125, India
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Cheng J, Zhu LH, Salentijn EMJ, Huang B, Gruber J, Dechesne AC, Krens FA, Qi W, Visser RGF, van Loo EN. Functional analysis of the omega-6 fatty acid desaturase (CaFAD2) gene family of the oil seed crop Crambe abyssinica. BMC PLANT BIOLOGY 2013; 13:146. [PMID: 24083776 PMCID: PMC3829706 DOI: 10.1186/1471-2229-13-146] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Accepted: 09/24/2013] [Indexed: 05/24/2023]
Abstract
BACKGROUND Crambe abyssinica produces high erucic acid (C22:1, 55-60%) in the seed oil, which can be further increased by reduction of polyunsaturated fatty acid (PUFA) levels. The omega-6 fatty acid desaturase enzyme (FAD2) is known to be involved in PUFA biosynthesis. In crambe, three CaFAD2 genes, CaFAD2-C1, CaFAD2-C2 and CaFAD2-C3 are expressed. RESULTS The individual effect of each CaFAD2 gene on oil composition was investigated through studying transgenic lines (CaFAD2-RNAi) for differential expression levels in relation to the composition of seed-oil. Six first generation transgenic plants (T1) showed C18:1 increase (by 6% to 10.5%) and PUFA reduction (by 8.6% to 10.2%). The silencing effect in these T1-plants ranged from the moderate silencing (40% to 50% reduction) of all three CaFAD2 genes to strong silencing (95% reduction) of CaFAD2-C3 alone. The progeny of two T1-plants (WG4-4 and WG19-6) was further analysed. Four or five transgene insertions are characterized in the progeny (T2) of WG19-6 in contrast to a single insertion in the T2 progeny of WG4-4. For the individual T2-plants of both families (WG19-6 and WG4-4), seed-specific silencing of CaFAD2-C1 and CaFAD2-C2 was observed in several individual T2-plants but, on average in both families, the level of silencing of these genes was not significant. A significant reduction in expression level (P < 0.01) in both families was only observed for CaFAD2-C3 together with significantly different C18:1 and PUFA levels in oil. CONCLUSIONS CaFAD2-C3 expression is highly correlated to levels of C18:1 (r = -0.78) and PUFA (r = 0.75), which suggests that CaFAD2-C3 is the most important one for changing the oil composition of crambe.
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Affiliation(s)
- Jihua Cheng
- Wageningen UR Plant Breeding, P.O. Box 16, 6700, AA Wageningen, The Netherlands
- College of Life Science, Hubei University, Wuhan, People’s Republic of China
| | - Li-Hua Zhu
- Plant Breeding and Biotechnology, Swedish University of Agricultural Science, Alnarp, Sweden
| | - Elma MJ Salentijn
- Wageningen UR Plant Breeding, P.O. Box 16, 6700, AA Wageningen, The Netherlands
| | - Bangquan Huang
- College of Life Science, Hubei University, Wuhan, People’s Republic of China
| | - Jens Gruber
- Institute for Biology I-Botany, RWTH Aachen University, Aachen, Germany
| | | | - Frans A Krens
- Wageningen UR Plant Breeding, P.O. Box 16, 6700, AA Wageningen, The Netherlands
| | - Weicong Qi
- Wageningen UR Plant Breeding, P.O. Box 16, 6700, AA Wageningen, The Netherlands
- College of Life Science, Hubei University, Wuhan, People’s Republic of China
| | - Richard GF Visser
- Wageningen UR Plant Breeding, P.O. Box 16, 6700, AA Wageningen, The Netherlands
| | - Eibertus N van Loo
- Wageningen UR Plant Breeding, P.O. Box 16, 6700, AA Wageningen, The Netherlands
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Zhou M, Zhang C, Wu Y, Tang Y. Metabolic engineering of gossypol in cotton. Appl Microbiol Biotechnol 2013; 97:6159-65. [PMID: 23775273 DOI: 10.1007/s00253-013-5032-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 05/31/2013] [Accepted: 05/31/2013] [Indexed: 11/24/2022]
Abstract
Cotton has long been known as a fiber plant. Besides the cotton fiber, the cottonseed oil and cottonseed protein are two other major products of cotton plants. However, the applications of the cottonseed oil and protein are limited because of the presence of toxic gossypol, which is unsafe for human and monogastric animal consumption. Meanwhile, gossypol in cotton increases the plant defense response to insect herbivores and pathogens. Consequently, gossypol has been extensively used in clinical trials in biomedical science. Over the last few years, major advances have occurred in both understanding and practice with regard to molecular regulation of gossypol pathway in cotton plant or hairy root culture. This review highlights a few major recent and ongoing developments in metabolic engineering of gossypol, as well as suggestions regarding further advances needed.
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Affiliation(s)
- Meiliang Zhou
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Zhongguancun South Street No 12, Haidian District, Beijing 100081, China
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24
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Palle SR, Campbell LM, Pandeya D, Puckhaber L, Tollack LK, Marcel S, Sundaram S, Stipanovic RD, Wedegaertner TC, Hinze L, Rathore KS. RNAi-mediated Ultra-low gossypol cottonseed trait: performance of transgenic lines under field conditions. PLANT BIOTECHNOLOGY JOURNAL 2013; 11:296-304. [PMID: 23078138 DOI: 10.1111/pbi.12013] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Revised: 09/19/2012] [Accepted: 09/20/2012] [Indexed: 05/06/2023]
Abstract
Cottonseed remains a low-value by-product of lint production mainly due to the presence of toxic gossypol that makes it unfit for monogastrics. Ultra-low gossypol cottonseed (ULGCS) lines were developed using RNAi knockdown of δ-cadinene synthase gene(s) in Gossypium hirsutum. The purpose of the current study was to assess the stability and specificity of the ULGCS trait and evaluate the agronomic performance of the transgenic lines. Trials conducted over a period of 3 years show that the ULGCS trait was stable under field conditions and the foliage/floral organs of transgenic lines contained wild-type levels of gossypol and related terpenoids. Although it was a relatively small-scale study, we did not observe any negative effects on either the yield or quality of the fibre and seed in the transgenic lines compared with the nontransgenic parental plants. Compositional analysis was performed on the seeds obtained from plants grown in the field during 2009. As expected, the major difference between the ULGCS and wild-type cottonseeds was in terms of their gossypol levels. With the exception of oil content, the composition of ULGCS was similar to that of nontransgenic cottonseeds. Interestingly, the ULGCS had significantly higher (4%-8%) oil content compared with the seeds from the nontransgenic parent. Field trial results confirmed the stability and specificity of the ULGCS trait suggesting that this RNAi-based product has the potential to be commercially viable. Thus, it may be possible to enhance and expand the nutritional utility of the annual cottonseed output to fulfil the ever-increasing needs of humanity.
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Affiliation(s)
- Sreenath R Palle
- Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, TX, USA
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