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Wijnen CL, Botet R, van de Belt J, Deurhof L, de Jong H, de Snoo CB, Dirks R, Boer MP, van Eeuwijk FA, Wijnker E, Keurentjes JJB. A complete chromosome substitution mapping panel reveals genome-wide epistasis in Arabidopsis. Heredity (Edinb) 2024; 133:198-205. [PMID: 38982296 PMCID: PMC11350127 DOI: 10.1038/s41437-024-00705-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 07/02/2024] [Accepted: 07/03/2024] [Indexed: 07/11/2024] Open
Abstract
Chromosome substitution lines (CSLs) are tentatively supreme resources to investigate non-allelic genetic interactions. However, the difficulty of generating such lines in most species largely yielded imperfect CSL panels, prohibiting a systematic dissection of epistasis. Here, we present the development and use of a unique and complete panel of CSLs in Arabidopsis thaliana, allowing the full factorial analysis of epistatic interactions. A first comparison of reciprocal single chromosome substitutions revealed a dependency of QTL detection on different genetic backgrounds. The subsequent analysis of the complete panel of CSLs enabled the mapping of the genetic interactors and identified multiple two- and three-way interactions for different traits. Some of the detected epistatic effects were as large as any observed main effect, illustrating the impact of epistasis on quantitative trait variation. We, therefore, have demonstrated the high power of detection and mapping of genome-wide epistasis, confirming the assumed supremacy of comprehensive CSL sets.
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Affiliation(s)
- Cris L Wijnen
- Wageningen University and Research, Laboratory of Genetics, Wageningen, The Netherlands
| | - Ramon Botet
- Wageningen University and Research, Laboratory of Genetics, Wageningen, The Netherlands
| | - José van de Belt
- Wageningen University and Research, Laboratory of Genetics, Wageningen, The Netherlands
| | - Laurens Deurhof
- Wageningen University and Research, Laboratory of Genetics, Wageningen, The Netherlands
| | - Hans de Jong
- Wageningen University and Research, Laboratory of Genetics, Wageningen, The Netherlands
| | | | - Rob Dirks
- Rijk Zwaan, Molecular Biology Research, Fijnaart, The Netherlands
- Managerial Genetics Consulting, Maaseik, Belgium
| | - Martin P Boer
- Wageningen University and Research, Biometris, Wageningen, The Netherlands
| | - Fred A van Eeuwijk
- Wageningen University and Research, Biometris, Wageningen, The Netherlands
| | - Erik Wijnker
- Wageningen University and Research, Laboratory of Genetics, Wageningen, The Netherlands
| | - Joost J B Keurentjes
- Wageningen University and Research, Laboratory of Genetics, Wageningen, The Netherlands.
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Qu Y, Fernie AR, Liu J, Yan J. Doubled haploid technology and synthetic apomixis: Recent advances and applications in future crop breeding. MOLECULAR PLANT 2024; 17:1005-1018. [PMID: 38877700 DOI: 10.1016/j.molp.2024.06.005] [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: 11/27/2023] [Revised: 05/19/2024] [Accepted: 06/11/2024] [Indexed: 06/16/2024]
Abstract
Doubled haploid (DH) technology and synthetic apomixis approaches can considerably shorten breeding cycles and enhance breeding efficiency. Compared with traditional breeding methods, DH technology offers the advantage of rapidly generating inbred lines, while synthetic apomixis can effectively fix hybrid vigor. In this review, we focus on (i) recent advances in identifying and characterizing genes responsible for haploid induction (HI), (ii) the molecular mechanisms of HI, (iii) spontaneous haploid genome doubling, and (iv) crop synthetic apomixis. We also discuss the challenges and potential solutions for future crop breeding programs utilizing DH technology and synthetic apomixis. Finally, we provide our perspectives about how to integrate DH and synthetic apomixis for precision breeding and de novo domestication.
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Affiliation(s)
- Yanzhi Qu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China; Hubei Hongshan Laboratory, Wuhan 430070, China
| | - Alisdair R Fernie
- Department of Molecular Physiology, Max- Planck- Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany; Center of Plant Systems Biology and Biotechnology, 4000 Plovdiv, Bulgaria
| | - Jie Liu
- Yazhouwan National Laboratory, Sanya 572024, China.
| | - Jianbing Yan
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China; Hubei Hongshan Laboratory, Wuhan 430070, China; Yazhouwan National Laboratory, Sanya 572024, China.
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Khammona K, Dermail A, Suriharn K, Lübberstedt T, Wanchana S, Thunnom B, Poncheewin W, Toojinda T, Ruanjaichon V, Arikit S. Accelerating haploid induction rate and haploid validation through marker-assisted selection for qhir1 and qhir8 in maize. FRONTIERS IN PLANT SCIENCE 2024; 15:1337463. [PMID: 38504887 PMCID: PMC10948437 DOI: 10.3389/fpls.2024.1337463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 02/19/2024] [Indexed: 03/21/2024]
Abstract
Doubled haploid (DH) technology becomes more routinely applied in maize hybrid breeding. However, some issues in haploid induction and identification persist, requiring resolution to optimize DH production. Our objective was to implement simultaneous marker-assisted selection (MAS) for qhir1 (MTL/ZmPLA1/NLD) and qhir8 (ZmDMP) using TaqMan assay in F2 generation of four BHI306-derived tropical × temperate inducer families. We also aimed to assess their haploid induction rate (HIR) in the F3 generation as a phenotypic response to MAS. We highlighted remarkable increases in HIR of each inducer family. Genotypes carrying qhir1 and qhir8 exhibited 1 - 3-fold higher haploid frequency than those carrying only qhir1. Additionally, the qhir1 marker was employed for verifying putative haploid seedlings at 7 days after planting. Flow cytometric analysis served as the gold standard test to assess the accuracy of the R1-nj and the qhir1 marker. The qhir1 marker showed high accuracy and may be integrated in multiple haploid identifications at early seedling stage succeeding pre-haploid sorting via R1-nj marker.
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Affiliation(s)
- Kanogporn Khammona
- Department of Agronomy, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Nakhon Pathom, Thailand
| | - Abil Dermail
- Department of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
| | - Khundej Suriharn
- Department of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
- Plant Breeding Research Center for Sustainable Agriculture, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
| | | | - Samart Wanchana
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Burin Thunnom
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Wasin Poncheewin
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Theerayut Toojinda
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Vinitchan Ruanjaichon
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Siwaret Arikit
- Department of Agronomy, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Nakhon Pathom, Thailand
- Rice Science Center, Kasetsart University, Nakhon Pathom, Thailand
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Quiroz LF, Gondalia N, Brychkova G, McKeown PC, Spillane C. Haploid rhapsody: the molecular and cellular orchestra of in vivo haploid induction in plants. THE NEW PHYTOLOGIST 2024; 241:1936-1949. [PMID: 38180262 DOI: 10.1111/nph.19523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 12/11/2023] [Indexed: 01/06/2024]
Abstract
In planta haploid induction (HI), which reduces the chromosome number in the progeny after fertilization, has garnered increasing attention for its significant potential in crop breeding and genetic research. Despite the identification of several natural and synthetic HI systems in different plant species, the molecular and cellular mechanisms underlying these HI systems remain largely unknown. This review synthesizes the current understanding of HI systems in plants (with a focus on genes and molecular mechanisms involved), including the molecular and cellular interactions which orchestrate the HI process. As most HI systems can function across taxonomic boundaries, we particularly discuss the evidence for conserved mechanisms underlying the process. These include mechanisms involved in preserving chromosomal integrity, centromere function, gamete communication and/or fusion, and maintenance of karyogamy. While significant discoveries and advances on haploid inducer systems have arisen over the past decades, we underscore gaps in understanding and deliberate on directions for further research for a more comprehensive understanding of in vivo HI processes in plants.
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Affiliation(s)
- Luis Felipe Quiroz
- Agriculture and Bioeconomy Research Centre, Ryan Institute, University of Galway, University Road, Galway, H91 REW4, Ireland
| | - Nikita Gondalia
- Agriculture and Bioeconomy Research Centre, Ryan Institute, University of Galway, University Road, Galway, H91 REW4, Ireland
| | - Galina Brychkova
- Agriculture and Bioeconomy Research Centre, Ryan Institute, University of Galway, University Road, Galway, H91 REW4, Ireland
| | - Peter C McKeown
- Agriculture and Bioeconomy Research Centre, Ryan Institute, University of Galway, University Road, Galway, H91 REW4, Ireland
| | - Charles Spillane
- Agriculture and Bioeconomy Research Centre, Ryan Institute, University of Galway, University Road, Galway, H91 REW4, Ireland
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Puchta H, Houben A. Plant chromosome engineering - past, present and future. THE NEW PHYTOLOGIST 2024; 241:541-552. [PMID: 37984056 DOI: 10.1111/nph.19414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 10/24/2023] [Indexed: 11/22/2023]
Abstract
Spontaneous chromosomal rearrangements (CRs) play an essential role in speciation, genome evolution and crop domestication. To be able to use the potential of CRs for breeding, plant chromosome engineering was initiated by fragmenting chromosomes by X-ray irradiation. With the rise of the CRISPR/Cas system, it became possible to induce double-strand breaks (DSBs) in a highly efficient manner at will at any chromosomal position. This has enabled a completely new level of predesigned chromosome engineering. The genetic linkage between specific genes can be broken by inducing chromosomal translocations. Natural inversions, which suppress genetic exchange, can be reverted for breeding. In addition, various approaches for constructing minichromosomes by downsizing regular standard A or supernumerary B chromosomes, which could serve as future vectors in plant biotechnology, have been developed. Recently, a functional synthetic centromere could be constructed. Also, different ways of genome haploidization have been set up, some based on centromere manipulations. In the future, we expect to see even more complex rearrangements, which can be combined with previously developed engineering technologies such as recombinases. Chromosome engineering might help to redefine genetic linkage groups, change the number of chromosomes, stack beneficial genes on mini cargo chromosomes, or set up genetic isolation to avoid outcrossing.
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Affiliation(s)
- Holger Puchta
- Joseph Gottlieb Kölreuter Institute for Plant Sciences (JKIP) - Molecular Biology, Karlsruhe Institute of Technology (KIT), 76131, Karlsruhe, Germany
| | - Andreas Houben
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, 06466, Seeland, Germany
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Finseth F. Female meiotic drive in plants: mechanisms and dynamics. Curr Opin Genet Dev 2023; 82:102101. [PMID: 37633231 DOI: 10.1016/j.gde.2023.102101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/10/2023] [Accepted: 07/22/2023] [Indexed: 08/28/2023]
Abstract
Female meiosis is fundamentally asymmetric, creating an arena for genetic elements to compete for inclusion in the egg to maximize their transmission. Centromeres, as mediators of chromosomal segregation, are prime candidates to evolve via 'female meiotic drive'. According to the centromere-drive model, the asymmetry of female meiosis ignites a coevolutionary arms race between selfish centromeres and kinetochore proteins, the by-product of which is accelerated sequence divergence. Here, I describe and compare plant models that have been instrumental in uncovering the mechanistic basis of female meiotic drive (maize) and the dynamics of active selfish centromeres in nature (monkeyflowers). Then, I speculate on the mechanistic basis of drive in monkeyflowers, discuss how centromere strength influences chromosomal segregation in plants, and describe new insights into the evolution of plant centromeres.
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Affiliation(s)
- Findley Finseth
- W.M. Keck Science Department, Claremont McKenna, Scripps, and Pitzer Colleges, Claremont, CA 91711, USA.
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Mahlandt A, Singh DK, Mercier R. Engineering apomixis in crops. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:131. [PMID: 37199785 DOI: 10.1007/s00122-023-04357-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 04/04/2023] [Indexed: 05/19/2023]
Abstract
Apomixis is an asexual mode of reproduction through seeds where progeny are clones of the mother plants. Naturally apomictic modes of reproduction are found in hundreds of plant genera distributed across more than 30 plant families, but are absent in major crop plants. Apomixis has the potential to be a breakthrough technology by allowing the propagation through seed of any genotype, including F1 hybrids. Here, we have summarized the recent progress toward synthetic apomixis, where combining targeted modifications of both the meiosis and fertilization processes leads to the production of clonal seeds at high frequencies. Despite some remaining challenges, the technology has approached a level of maturity that allows its consideration for application in the field.
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Affiliation(s)
- Alexander Mahlandt
- Department of Chromosome Biology, Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, Cologne, Germany
| | - Dipesh Kumar Singh
- Department of Chromosome Biology, Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, Cologne, Germany
| | - Raphael Mercier
- Department of Chromosome Biology, Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, Cologne, Germany.
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Lv J, Kelliher T. Recent Advances in Engineering of In Vivo Haploid Induction Systems. Methods Mol Biol 2023; 2653:365-383. [PMID: 36995637 DOI: 10.1007/978-1-0716-3131-7_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
Doubled haploid (DH) technology is an important approach to accelerate genetic gain via a shortened breeding cycle, which relies on the ability to generate haploid cells that develop into haploids or doubled haploid embryos and plants. Both in vitro and in vivo (in seed) methods can be used for haploid production. In vitro culture of gametophytes (microspores and megaspores) or their surrounding floral tissues or organs (anthers, ovaries, or ovules) has generated haploid plants in wheat, rice, cucumber, tomato, and many other crops. In vivo methods utilize pollen irradiation or wide crossing or in certain species leverage genetic mutant haploid inducer lines. Haploid inducers were widespread in corn and barley, and recent cloning of the inducer genes and identification of the causal mutations in corn have led to the establishment of in vivo haploid inducer systems via genome editing of orthologous genes in more diverse species. Further combination of DH and genome editing technology led to the development of novel breeding technologies such as HI-EDIT™. In this chapter, we will review in vivo haploid induction and new breeding technologies that combine haploid induction and genome editing.
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Affiliation(s)
- Jian Lv
- Syngenta Biotechnology China Co., Ltd, Changping, Beijing, China.
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