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Ahmar S, Hensel G, Gruszka D. CRISPR/Cas9-mediated genome editing techniques and new breeding strategies in cereals - current status, improvements, and perspectives. Biotechnol Adv 2023; 69:108248. [PMID: 37666372 DOI: 10.1016/j.biotechadv.2023.108248] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 08/29/2023] [Accepted: 08/31/2023] [Indexed: 09/06/2023]
Abstract
Cereal crops, including triticeae species (barley, wheat, rye), as well as edible cereals (wheat, corn, rice, oat, rye, sorghum), are significant suppliers for human consumption, livestock feed, and breweries. Over the past half-century, modern varieties of cereal crops with increased yields have contributed to global food security. However, presently cultivated elite crop varieties were developed mainly for optimal environmental conditions. Thus, it has become evident that taking into account the ongoing climate changes, currently a priority should be given to developing new stress-tolerant cereal cultivars. It is necessary to enhance the accuracy of methods and time required to generate new cereal cultivars with the desired features to adapt to climate change and keep up with the world population expansion. The CRISPR/Cas9 system has been developed as a powerful and versatile genome editing tool to achieve desirable traits, such as developing high-yielding, stress-tolerant, and disease-resistant transgene-free lines in major cereals. Despite recent advances, the CRISPR/Cas9 application in cereals faces several challenges, including a significant amount of time required to develop transgene-free lines, laboriousness, and a limited number of genotypes that may be used for the transformation and in vitro regeneration. Additionally, developing elite lines through genome editing has been restricted in many countries, especially Europe and New Zealand, due to a lack of flexibility in GMO regulations. This review provides a comprehensive update to researchers interested in improving cereals using gene-editing technologies, such as CRISPR/Cas9. We will review some critical and recent studies on crop improvements and their contributing factors to superior cereals through gene-editing technologies.
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Affiliation(s)
- Sunny Ahmar
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia, Katowice, Poland
| | - Goetz Hensel
- Centre for Plant Genome Engineering, Institute of Plant Biochemistry, Heinrich-Heine-University, Duesseldorf, Germany; Centre of Region Haná for Biotechnological and Agricultural Research, Czech Advanced Technology and Research Institute, Palacký University Olomouc, Olomouc, Czech Republic
| | - Damian Gruszka
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia, Katowice, Poland.
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Mayakaduwa R, Silva T. Haploid Induction in Indica Rice: Exploring New Opportunities. PLANTS (BASEL, SWITZERLAND) 2023; 12:3118. [PMID: 37687363 PMCID: PMC10490219 DOI: 10.3390/plants12173118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 08/25/2023] [Accepted: 08/27/2023] [Indexed: 09/10/2023]
Abstract
Haploid plants are of significant interest to crop breeders due to their ability to expedite the development of inbred lines. Chromosome-doubling of haploids, produced by either in vitro or in vivo methods, results in fully homozygous doubled haploids. For nearly five decades, in vitro methods of anther and microspore culture have been attempted in many crops. In rice, in vitro methods are used with some success in japonica cultivars, although indica types have remained recalcitrant to a large extent. This review aims to explore the reasons for the lack of success of in vitro methods in indica rice and discuss new advancements in in vivo haploid induction protocols in other cereals and their relevance to rice. In particular, the current level of understanding of in vivo haploid inducer systems that utilize MTL and CENH3 mutants is analyzed in detail. One notable advantage of in vivo haploid induction systems is that they do not require tissue culture competence. This makes these methods more accessible and potentially transformative for research, offering a pragmatic approach to improving indica rice cultivars. By embracing these in vivo methods and harnessing the power of gene editing technologies like CRISPR/Cas9 systems, breeders can reshape their approach to indica rice improvement.
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Affiliation(s)
| | - Tara Silva
- Department of Plant Sciences, University of Colombo, Colombo 00300, Sri Lanka;
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Eliby S, Bekkuzhina S, Kishchenko O, Iskakova G, Kylyshbayeva G, Jatayev S, Soole K, Langridge P, Borisjuk N, Shavrukov Y. Developments and prospects for doubled haploid wheat. Biotechnol Adv 2022; 60:108007. [PMID: 35732257 DOI: 10.1016/j.biotechadv.2022.108007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 05/28/2022] [Accepted: 06/15/2022] [Indexed: 11/02/2022]
Abstract
Doubled haploid production is a valuable biotechnology that can accelerate the breeding of new wheat varieties by several years through the one-step creation of 100% homozygous plants. The technology also plays important role in studying the genetic control of traits in wheat, in marker-assisted selection, in genomics and in genetic engineering. In this paper, recent advances in androgenesis and gynogenesis techniques, emphasizing predominantly the in vitro culture phase, as well as the emerging innovative approaches in researching and producing wheat doubled haploids are reviewed. Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-based genome editing, that allows targeted mutagenesis and gene targeting, is being tested extensively as a powerful and precise tool to induce doubled haploids in wheat. The review provides the reader with recent examples of gene modifications in wheat to induce haploidy.
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Affiliation(s)
- Serik Eliby
- University of Adelaide, Urrbrae, SA, Australia
| | - Sara Bekkuzhina
- Faculty of Agronomy, S.Seifullin Kazakh AgroTechnical University, Nur-Sultan, Kazakhstan
| | - Olena Kishchenko
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, School of Life Sciences, Huaiyin Normal University, Huai'an, China; Institute of Cell Biology and Genetic Engineering, National Academy of Science of Ukraine, Kyiv, Ukraine
| | - Gulnur Iskakova
- Kazakh Agrarian National University, Almaty, Kazakhstan; Institute of Molecular Biology and Biochemistry, Almaty, Kazakhstan
| | | | - Satyvaldy Jatayev
- Faculty of Agronomy, S.Seifullin Kazakh AgroTechnical University, Nur-Sultan, Kazakhstan
| | - Kathleen Soole
- College of Science and Engineering, Biological Sciences, Flinders University, SA, Australia
| | - Peter Langridge
- University of Adelaide, Urrbrae, SA, Australia; Wheat Initiative, Julius-Kühn-Institute, Berlin, Germany
| | - Nikolai Borisjuk
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, School of Life Sciences, Huaiyin Normal University, Huai'an, China
| | - Yuri Shavrukov
- College of Science and Engineering, Biological Sciences, Flinders University, SA, Australia.
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Zhang X, Zhang L, Zhang J, Jia M, Cao L, Yu J, Zhao D. Haploid induction in allotetraploid tobacco using DMPs mutation. PLANTA 2022; 255:98. [PMID: 35380264 DOI: 10.1007/s00425-022-03877-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/16/2022] [Indexed: 06/14/2023]
Abstract
MAIN CONCLUSION dmp1dmp2dmp3 mutants created by CRISPR/Cas9 could trigger maternal haploids in the allotetraploid model plant Nicotiana tabacum L. Double haploid (DH) technology is becoming increasingly important because it can significantly accelerate the breeding process. Haploid induction plays a fundamental role in the production of DH lines. Haploid induction has been realized and applied in diploid plants using DMP genes. However, it has yet to be elucidated whether haploid induction could be established in polyploid plants. In the current study, three homologues of the DMP genes (NtDMP1, 2, and 3) were identified in the allotetraploid plant Nicotiana tabacum, and the encoded proteins localized in the endoplasmic reticulum. Loss-of-function mutations in all three genes triggered maternal haploids with an induction rate of 1.52-1.75%. Compared with wild-type tobacco, the created haploid inducer exhibited differences in pollen vigor and seed germination rate. Furthermore, to rapidly and easily screen haploids, a visible haploid identification system was established based on a powdery mildew resistance phenotype. Findings from this study lay the foundation for the potential application of haploid inducers in allotetraploid plants such as tobacco.
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Affiliation(s)
- Xiaolian Zhang
- Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou Key Laboratory of Agro-Bioengineering, Institute of Agro-Bioengineering/College of Life Sciences, Guizhou University, Guiyang, 550025, China
- Molecular Genetics Key Laboratory of China Tobacco, Guizhou Academy of Tobacco Science, Guiyang, 550081, China
| | - Lili Zhang
- Molecular Genetics Key Laboratory of China Tobacco, Guizhou Academy of Tobacco Science, Guiyang, 550081, China
| | - Jishun Zhang
- Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou Key Laboratory of Agro-Bioengineering, Institute of Agro-Bioengineering/College of Life Sciences, Guizhou University, Guiyang, 550025, China
- Molecular Genetics Key Laboratory of China Tobacco, Guizhou Academy of Tobacco Science, Guiyang, 550081, China
| | - Mengao Jia
- Molecular Genetics Key Laboratory of China Tobacco, Guizhou Academy of Tobacco Science, Guiyang, 550081, China
| | - Linggai Cao
- Molecular Genetics Key Laboratory of China Tobacco, Guizhou Academy of Tobacco Science, Guiyang, 550081, China
| | - Jing Yu
- Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou Key Laboratory of Agro-Bioengineering, Institute of Agro-Bioengineering/College of Life Sciences, Guizhou University, Guiyang, 550025, China
- Molecular Genetics Key Laboratory of China Tobacco, Guizhou Academy of Tobacco Science, Guiyang, 550081, China
| | - Degang Zhao
- Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou Key Laboratory of Agro-Bioengineering, Institute of Agro-Bioengineering/College of Life Sciences, Guizhou University, Guiyang, 550025, China.
- Guizhou Plant Conservation Technology Center, Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou Academy of Agricultural Sciences, Guiyang, 550006, China.
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