51
|
Seguí-Simarro JM, Jacquier NMA, Widiez T. Overview of In Vitro and In Vivo Doubled Haploid Technologies. Methods Mol Biol 2021; 2287:3-22. [PMID: 34270023 DOI: 10.1007/978-1-0716-1315-3_1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Doubled haploids (DH) have become a powerful tool to assist in different basic research studies, and also in applied research. The principal (but not the only) and routine use of DH by breeding companies is to produce pure lines for hybrid seed production in different crop species. Several decades after the discovery of haploid inducer lines in maize and of anther culture as a method to produce haploid plants from pollen precursors, the biotechnological revolution of the last decades allowed to the development of a variety of approaches to pursue the goal of doubled haploid production. Now, it is possible to produce haploids and DHs in many different species, because when a method does not work properly, there are several others to test. In this chapter, we overview the currently available approaches used to produce haploids and DHs by using methods based on in vitro culture, or involving the in vivo induction of haploid embryo development, or a combination of both.
Collapse
Affiliation(s)
- Jose M Seguí-Simarro
- Cell Biology Group, Ciudad Politécnica de la Innovación (CPI), COMAV Institute - Universitat Politècnica de València, Valencia, Spain.
| | - Nathanaël M A Jacquier
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, Lyon, France.,Limagrain, Limagrain Field Seeds, Research Center, Gerzat, France
| | - Thomas Widiez
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, Lyon, France
| |
Collapse
|
52
|
Wang N, Gent JI, Dawe RK. Haploid induction by a maize cenh3 null mutant. SCIENCE ADVANCES 2021; 7:7/4/eabe2299. [PMID: 33523932 PMCID: PMC7817090 DOI: 10.1126/sciadv.abe2299] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 11/05/2020] [Indexed: 05/03/2023]
Abstract
The production of haploids is an important first step in creating many new plant varieties. One approach used in Arabidopsis involves crossing plants expressing different forms of centromeric histone H3 (CENP-A/CENH3) and subsequent loss of genome with weaker centromeres. However, the method has been ineffective in crop plants. Here, we describe a greatly simplified method based on crossing maize lines that are heterozygous for a cenh3 null mutation. Crossing +/cenh3 to wild-type plants in both directions yielded haploid progeny. Genome elimination was determined by the cenh3 genotype of the gametophyte, suggesting that centromere failure is caused by CENH3 dilution during the postmeiotic cell divisions that precede gamete formation. The cenh3 haploid inducer works as a vigorous hybrid and can be transferred to other lines in a single cross, making it versatile for a variety of applications.
Collapse
Affiliation(s)
- Na Wang
- Department of Plant Biology, University of Georgia, Athens, GA 30602, USA
| | - Jonathan I Gent
- Department of Plant Biology, University of Georgia, Athens, GA 30602, USA
| | - R Kelly Dawe
- Department of Plant Biology, University of Georgia, Athens, GA 30602, USA.
- Department of Genetics, University of Georgia, Athens, GA 30602, USA
| |
Collapse
|
53
|
Chen G, Zhou Y, Kishchenko O, Stepanenko A, Jatayev S, Zhang D, Borisjuk N. Gene editing to facilitate hybrid crop production. Biotechnol Adv 2020; 46:107676. [PMID: 33285253 DOI: 10.1016/j.biotechadv.2020.107676] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 11/23/2020] [Accepted: 11/28/2020] [Indexed: 11/18/2022]
Abstract
Capturing heterosis (hybrid vigor) is a promising way to increase productivity in many crops; hybrid crops often have superior yields, disease resistance, and stress tolerance compared with their parental inbred lines. The full utilization of heterosis faces a number of technical problems related to the specifics of crop reproductive biology, such as difficulties with generating and maintaining male-sterile lines and the low efficiency of natural cross-pollination for some genetic combinations. Innovative technologies, such as development of artificial in vitro systems for hybrid production and apomixis-based systems for maintenance of the resulting heterotic progeny, may substantially facilitate the production of hybrids. Genome editing using specifically targeted nucleases, such as clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated nuclease 9 (CRISPR/Cas9) systems, which recognize targets by RNA:DNA complementarity, has recently become an integral part of research and development in life science. In this review, we summarize the progress of genome editing technologies for facilitating the generation of mutant male sterile lines, applications of haploids for hybrid production, and the use of apomixis for the clonal propagation of elite hybrid lines.
Collapse
Affiliation(s)
- Guimin Chen
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, School of Life Sciences, Huaiyin Normal University, Huai'an, China; Jiangsu Collaborative Innovation Centre of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huai'an, China
| | - Yuzhen Zhou
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, School of Life Sciences, Huaiyin Normal University, Huai'an, China; Jiangsu Collaborative Innovation Centre of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huai'an, China.
| | - Olena Kishchenko
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, School of Life Sciences, Huaiyin Normal University, Huai'an, China; Jiangsu Collaborative Innovation Centre of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huai'an, China; Institute of Cell Biology & Genetic Engineering, National Academy of Science of Ukraine, Kyiv, Ukraine.
| | - Anton Stepanenko
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, School of Life Sciences, Huaiyin Normal University, Huai'an, China; Jiangsu Collaborative Innovation Centre of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huai'an, China; Institute of Cell Biology & Genetic Engineering, National Academy of Science of Ukraine, Kyiv, Ukraine.
| | - Satyvaldy Jatayev
- Faculty of Agronomy, S. Seifullin Kazakh AgroTechnical University, Nur-Sultan, Kazakhstan
| | - Dabing Zhang
- Joint International Research Laboratory of Metabolic & Developmental Sciences, Shanghai Jiao Tong University-University of Adelaide Joint Centre for Agriculture and Health, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China; School of Agriculture, Food and Wine, University of Adelaide, Glen Osmond, SA, Australia.
| | - Nikolai Borisjuk
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, School of Life Sciences, Huaiyin Normal University, Huai'an, China; Jiangsu Collaborative Innovation Centre of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huai'an, China.
| |
Collapse
|
54
|
Budhagatapalli N, Halbach T, Hiekel S, Büchner H, Müller AE, Kumlehn J. Site-directed mutagenesis in bread and durum wheat via pollination by cas9/guide RNA-transgenic maize used as haploidy inducer. PLANT BIOTECHNOLOGY JOURNAL 2020; 18:2376-2378. [PMID: 32426943 PMCID: PMC7680543 DOI: 10.1111/pbi.13415] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 05/01/2020] [Accepted: 05/12/2020] [Indexed: 05/03/2023]
Affiliation(s)
- Nagaveni Budhagatapalli
- Plant Reproductive BiologyDepartment of Physiology and Cell BiologyLeibniz Institute of Plant Genetics and Crop Plant Research (IPK)GaterslebenGermany
| | | | - Stefan Hiekel
- Plant Reproductive BiologyDepartment of Physiology and Cell BiologyLeibniz Institute of Plant Genetics and Crop Plant Research (IPK)GaterslebenGermany
| | - Heike Büchner
- Plant Reproductive BiologyDepartment of Physiology and Cell BiologyLeibniz Institute of Plant Genetics and Crop Plant Research (IPK)GaterslebenGermany
| | | | - Jochen Kumlehn
- Plant Reproductive BiologyDepartment of Physiology and Cell BiologyLeibniz Institute of Plant Genetics and Crop Plant Research (IPK)GaterslebenGermany
| |
Collapse
|
55
|
Generation of paternal haploids in wheat by genome editing of the centromeric histone CENH3. Nat Biotechnol 2020; 38:1397-1401. [PMID: 33169035 DOI: 10.1038/s41587-020-0728-4] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 10/05/2020] [Indexed: 12/12/2022]
Abstract
New breeding technologies accelerate germplasm improvement and reduce the cost of goods in seed production1-3. Many such technologies could use in vivo paternal haploid induction (HI), which occurs when double fertilization precedes maternal (egg cell) genome loss. Engineering of the essential CENTROMERIC HISTONE (CENH3) gene induces paternal HI in Arabidopsis4-6. Despite conservation of CENH3 function across crops, CENH3-based HI has not been successful outside of the Arabidopsis model system7. Here we report a commercially operable paternal HI line in wheat with a ~7% HI rate, identified by screening genome-edited TaCENH3α-heteroallelic combinations. Unlike in Arabidopsis, edited alleles exhibited reduced transmission in female gametophytes, and heterozygous genotypes triggered higher HI rates than homozygous combinations. These developments might pave the way for the deployment of CENH3 HI technology in diverse crops.
Collapse
|
56
|
Hesami M, Jones AMP. Application of artificial intelligence models and optimization algorithms in plant cell and tissue culture. Appl Microbiol Biotechnol 2020; 104:9449-9485. [PMID: 32984921 DOI: 10.1007/s00253-020-10888-2] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/31/2020] [Accepted: 09/04/2020] [Indexed: 12/28/2022]
Abstract
Artificial intelligence (AI) models and optimization algorithms (OA) are broadly employed in different fields of technology and science and have recently been applied to improve different stages of plant tissue culture. The usefulness of the application of AI-OA has been demonstrated in the prediction and optimization of length and number of microshoots or roots, biomass in plant cell cultures or hairy root culture, and optimization of environmental conditions to achieve maximum productivity and efficiency, as well as classification of microshoots and somatic embryos. Despite its potential, the use of AI and OA in this field has been limited due to complex definition terms and computational algorithms. Therefore, a systematic review to unravel modeling and optimizing methods is important for plant researchers and has been acknowledged in this study. First, the main steps for AI-OA development (from data selection to evaluation of prediction and classification models), as well as several AI models such as artificial neural networks (ANNs), neurofuzzy logic, support vector machines (SVMs), decision trees, random forest (FR), and genetic algorithms (GA), have been represented. Then, the application of AI-OA models in different steps of plant tissue culture has been discussed and highlighted. This review also points out limitations in the application of AI-OA in different plant tissue culture processes and provides a new view for future study objectives. KEY POINTS: • Artificial intelligence models and optimization algorithms can be considered a novel and reliable computational method in plant tissue culture. • This review provides the main steps and concepts for model development. • The application of machine learning algorithms in different steps of plant tissue culture has been discussed and highlighted.
Collapse
Affiliation(s)
- Mohsen Hesami
- Gosling Research Institute for Plant Preservation, Department of Plant Agriculture, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Andrew Maxwell Phineas Jones
- Gosling Research Institute for Plant Preservation, Department of Plant Agriculture, University of Guelph, Guelph, ON, N1G 2W1, Canada.
| |
Collapse
|
57
|
Haploid Bio-Induction in Plant through Mock Sexual Reproduction. iScience 2020; 23:101279. [PMID: 32619703 PMCID: PMC7334361 DOI: 10.1016/j.isci.2020.101279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 05/14/2020] [Accepted: 06/11/2020] [Indexed: 10/25/2022] Open
Abstract
Haploidization is invaluable for basic genetic research and crop breeding. The haploid bio-induction principle is an important topic that remains largely unexplored. In this study, both CenH3 RNAi and in vitro inhibition were used to simulate and induce haploids in allopolyploid crop. Notably, in vitro CenH3 inhibition showed that the results were much the same to that of RNAi in phenotype, chromosome behavior, microspore production, and haploid induction. Cytological analyses of RNAi and inhibitor-treated progenies revealed elimination of chromosomes, defective microspores with empty nuclei, thereby giving rise to pseudo male gametes, and haploid parthenogenesis induction. We found distinct defective empty microspores that were positively correlated with the decrease of CenH3 during RNAi manipulation. Investigation through both in vivo and in vitro studies revealed that haploidization was induced through the pseudo male gamete-mediated mock sexual reproduction. The present results provide insights for the haploid parthenogenesis induction process.
Collapse
|
58
|
Jacquier NMA, Gilles LM, Pyott DE, Martinant JP, Rogowsky PM, Widiez T. Puzzling out plant reproduction by haploid induction for innovations in plant breeding. NATURE PLANTS 2020; 6:610-619. [PMID: 32514145 DOI: 10.1038/s41477-020-0664-9] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 04/14/2020] [Indexed: 05/19/2023]
Abstract
Mixing maternal and paternal genomes in embryos is not only responsible for the evolutionary success of sexual reproduction, but is also a cornerstone of plant breeding. However, once an interesting gene combination is obtained, further genetic mixing is problematic. To rapidly fix genetic information, doubled haploid plants can be produced: haploid embryos having solely the genetic information from one parent are allowed to develop, and chromosome doubling generates fully homozygous plants. A powerful path to the production of doubled haploids is based on haploid inducer lines. A simple cross between a haploid inducer line and the line with gene combinations to be fixed will trigger haploid embryo development. However, the exact mechanism behind in planta haploid induction remains an enduring mystery. The recent discoveries of molecular actors triggering haploid induction in the maize crop and the model Arabidopsis thaliana pinpoint an essential role of processes related to gamete development, gamete interactions and genome stability. These findings enabled translation of haploid induction capacity to other crops as well as the use of haploid inducer lines to deliver genome editing machinery into various crop varieties. These recent advances not only hold promise for the next generations of plant breeding strategies, but they also provide a deeper insight into the fundamental bases of sexual reproduction in plants.
Collapse
Affiliation(s)
- Nathanaël M A Jacquier
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, Lyon, France
- Limagrain, Limagrain Field Seeds, Research Centre, Gerzat, France
| | - Laurine M Gilles
- Limagrain, Limagrain Field Seeds, Research Centre, Gerzat, France
| | - Douglas E Pyott
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, Lyon, France
| | | | - Peter M Rogowsky
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, Lyon, France
| | - Thomas Widiez
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, Lyon, France.
| |
Collapse
|
59
|
Zhong Y, Chen B, Li M, Wang D, Jiao Y, Qi X, Wang M, Liu Z, Chen C, Wang Y, Chen M, Li J, Xiao Z, Cheng D, Liu W, Boutilier K, Liu C, Chen S. A DMP-triggered in vivo maternal haploid induction system in the dicotyledonous Arabidopsis. NATURE PLANTS 2020; 6:466-472. [PMID: 32415294 DOI: 10.1038/s41477-020-0658-7] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 04/07/2020] [Indexed: 05/13/2023]
Abstract
Doubled haploid technology using inducer lines carrying mutations in ZmPLA1/MTL/NLD and ZmDMP1-4 has revolutionized traditional maize breeding. ZmPLA1/MTL/NLD is conserved in monocots and has been used to extend the system from maize to other monocots5-7, but no functional orthologue has been identified in dicots, while ZmDMP-like genes exist in both monocots and dicots4,8,9. Here, we report that loss-of-function mutations in the Arabidopsis thaliana ZmDMP-like genes AtDMP8 and AtDMP9 induce maternal haploids, with an average haploid induction rate of 2.1 ± 1.1%. In addition, to facilitate haploid seed identification in dicots, we established an efficient FAST-Red fluorescent marker-based haploid identification system that enables the identification of haploid seeds with >90% accuracy. These results show that mutations in DMP genes also trigger haploid induction in dicots. The conserved expression patterns and amino acid sequences of ZmDMP-like genes in dicots suggest that DMP mutations could be used to develop in vivo haploid induction systems in dicots.
Collapse
Affiliation(s)
- Yu Zhong
- National Maize Improvement Center of China, Key Laboratory of Crop Heterosis and Ultilization/Engineering Research Center for Maize Breeding, Ministry of Education, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Baojian Chen
- National Maize Improvement Center of China, Key Laboratory of Crop Heterosis and Ultilization/Engineering Research Center for Maize Breeding, Ministry of Education, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
- Bioscience, Wageningen University and Research, Wageningen, the Netherlands
- Laboratory of Molecular Biology, Wageningen University and Research, Wageningen, the Netherlands
| | - Mengran Li
- National Maize Improvement Center of China, Key Laboratory of Crop Heterosis and Ultilization/Engineering Research Center for Maize Breeding, Ministry of Education, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Dong Wang
- National Maize Improvement Center of China, Key Laboratory of Crop Heterosis and Ultilization/Engineering Research Center for Maize Breeding, Ministry of Education, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Yanyan Jiao
- National Maize Improvement Center of China, Key Laboratory of Crop Heterosis and Ultilization/Engineering Research Center for Maize Breeding, Ministry of Education, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Xiaolong Qi
- National Maize Improvement Center of China, Key Laboratory of Crop Heterosis and Ultilization/Engineering Research Center for Maize Breeding, Ministry of Education, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Min Wang
- National Maize Improvement Center of China, Key Laboratory of Crop Heterosis and Ultilization/Engineering Research Center for Maize Breeding, Ministry of Education, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Zongkai Liu
- National Maize Improvement Center of China, Key Laboratory of Crop Heterosis and Ultilization/Engineering Research Center for Maize Breeding, Ministry of Education, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Chen Chen
- National Maize Improvement Center of China, Key Laboratory of Crop Heterosis and Ultilization/Engineering Research Center for Maize Breeding, Ministry of Education, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Yuwen Wang
- National Maize Improvement Center of China, Key Laboratory of Crop Heterosis and Ultilization/Engineering Research Center for Maize Breeding, Ministry of Education, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Ming Chen
- National Maize Improvement Center of China, Key Laboratory of Crop Heterosis and Ultilization/Engineering Research Center for Maize Breeding, Ministry of Education, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Jinlong Li
- National Maize Improvement Center of China, Key Laboratory of Crop Heterosis and Ultilization/Engineering Research Center for Maize Breeding, Ministry of Education, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Zijian Xiao
- National Maize Improvement Center of China, Key Laboratory of Crop Heterosis and Ultilization/Engineering Research Center for Maize Breeding, Ministry of Education, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Dehe Cheng
- National Maize Improvement Center of China, Key Laboratory of Crop Heterosis and Ultilization/Engineering Research Center for Maize Breeding, Ministry of Education, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Wenxin Liu
- National Maize Improvement Center of China, Key Laboratory of Crop Heterosis and Ultilization/Engineering Research Center for Maize Breeding, Ministry of Education, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Kim Boutilier
- Bioscience, Wageningen University and Research, Wageningen, the Netherlands
| | - Chenxu Liu
- National Maize Improvement Center of China, Key Laboratory of Crop Heterosis and Ultilization/Engineering Research Center for Maize Breeding, Ministry of Education, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China.
| | - Shaojiang Chen
- National Maize Improvement Center of China, Key Laboratory of Crop Heterosis and Ultilization/Engineering Research Center for Maize Breeding, Ministry of Education, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China.
| |
Collapse
|
60
|
Ozias-Akins P, Conner JA. Clonal Reproduction through Seeds in Sight for Crops. Trends Genet 2020; 36:215-226. [PMID: 31973878 DOI: 10.1016/j.tig.2019.12.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 11/27/2019] [Accepted: 12/10/2019] [Indexed: 10/25/2022]
Abstract
Apomixis or asexual reproduction through seeds, enables the preservation of hybrid vigor. Hybrids are heterozygous and segregate for genotype and phenotype upon sexual reproduction. While apomixis, that is, clonal reproduction, is intuitively antithetical to diversity, it is rarely obligate and actually provides a mechanism to recover and maintain superior hybrid gene combinations for which sexual reproduction would reveal deleterious alleles in less fit genotypes. Apomixis, widespread across flowering plant orders, does not occur in major crop species, yet its introduction could add a valuable tool to the breeder's toolbox. In the past decade, discovery of genetic mechanisms regulating meiosis, embryo and endosperm development have facilitated proof-of-concept for the synthesis of apomixis, bringing apomictic crops closer to reality.
Collapse
Affiliation(s)
- Peggy Ozias-Akins
- Department of Horticulture and Institute of Plant Breeding and Genomics, University of Georgia, Tifton, GA 31793, USA.
| | - Joann A Conner
- Department of Horticulture and Institute of Plant Breeding and Genomics, University of Georgia, Tifton, GA 31793, USA
| |
Collapse
|
61
|
Using CRISPR/Cas9 to produce haploid inducers of carrot through targeted mutations of centromeric histone H3 (CENH3). ACTA ACUST UNITED AC 2019. [DOI: 10.17660/actahortic.2019.1264.26] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
62
|
Lantos C, Purgel S, Ács K, Langó B, Bóna L, Boda K, Békés F, Pauk J. Utilization of in Vitro Anther Culture in Spelt Wheat Breeding. PLANTS (BASEL, SWITZERLAND) 2019; 8:E436. [PMID: 31652667 PMCID: PMC6843536 DOI: 10.3390/plants8100436] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 10/11/2019] [Accepted: 10/20/2019] [Indexed: 11/16/2022]
Abstract
The efficiency of in vitro anther culture was screened in a full diallel population of four spelt wheat genotypes and ten F1 hybrids. Genotype dependency was observed based on the data of embryo-like structures (ELS), green-, albino plantlets. In the diallel population and ten F1 hybrids, the green plantlets production ranged from 13.75 to 85.00 and from 6.30 to 51.00, respectively. The anther culture-derived plants of F1 hybrids were grown up in the nursery. At the harvest, 436 spontaneous doubled haploid (DH) plants were identified among the 1535 anther culture-derived transplanted and grown up individual plants. The mean of spontaneous rediploidization was 28.4% which ranged from 9.76% to 54.24%. In two consecutive years, the agronomic values of 'Tonkoly.pop1' advanced line were compared with seven DH lines of 'Tonkoly.pop1' in the nursery. The DH lines achieved competitive values in comparison with 'Tonkoly.pop1' advanced line based on the 11 measured parameters (heading date, plant height, yield, hardness, width and length of seed, TKW, hulling yield, flour yield, protein and wet gluten content). These observations presage the efficient utilization of anther culture in spelt wheat breeding.
Collapse
Affiliation(s)
- Csaba Lantos
- Cereal Research Non-profit Ltd., P.O. Box 391, H-6701 Szeged, Hungary.
| | - Szandra Purgel
- Cereal Research Non-profit Ltd., P.O. Box 391, H-6701 Szeged, Hungary.
| | - Katalin Ács
- Cereal Research Non-profit Ltd., P.O. Box 391, H-6701 Szeged, Hungary.
- George Oláh PhD School, Budapest University of Technology and Economics, 1521 Budapest, Hungary.
| | - Bernadett Langó
- Cereal Research Non-profit Ltd., P.O. Box 391, H-6701 Szeged, Hungary.
- George Oláh PhD School, Budapest University of Technology and Economics, 1521 Budapest, Hungary.
| | - Lajos Bóna
- Cereal Research Non-profit Ltd., P.O. Box 391, H-6701 Szeged, Hungary.
| | - Krisztina Boda
- Department of Medical Physics and Informatics, University of Szeged, Korányi fasor 9, Szeged 6720, Hungary.
| | - Ferenc Békés
- FBFD PTY LTD, Hull Road 34, Beecroft, NSW, Australia.
| | - János Pauk
- Cereal Research Non-profit Ltd., P.O. Box 391, H-6701 Szeged, Hungary.
| |
Collapse
|
63
|
Wang S, Jin W, Wang K. Centromere histone H3- and phospholipase-mediated haploid induction in plants. PLANT METHODS 2019; 15:42. [PMID: 31057661 PMCID: PMC6485145 DOI: 10.1186/s13007-019-0429-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 04/24/2019] [Indexed: 05/14/2023]
Abstract
Simple and consistent production of haploid is always an appealing pursuit for both crop breeders and researchers. Although diverse strategies have been developed to produce haploids over the past decades, most of them are applicable in only a limited number of plant species. In 2010, Ravi and Chan reported that haploid Arabidopsis thaliana plants can be efficiently induced through the introduction of a single genetic alteration in centromere histone H3 (CENH3). Subsequent studies demonstrated that haploids can be efficiently induced either through genetic engineering of CENH3 N-terminal tail or histone fold domain or by replacing CENH3 with an ortholog. The mutation of a pollen-specific phospholipase gene, MATRILINEAL (MTL) has been revealed to trigger the haploid induction (HI) in maize, which present another promising HI approach by the editing of MTL in plant. Here, we review the progress of the CENH3-medialed HI and propose a revised centromere-size model by suggesting a competitive loading process between wild-type and mutant CENH3 during HI. This model can explain both the findings of HI failure when wild-type and mutant CENH3 genes are coexpressed and the alien centromere loading of CENH3 in stable hybrids. In addition, we review the current understanding of MTL-mediated HI in plant. The conservation of CENH3 and MTL in plants indicates wide potential application for HI. We discuss the utility and potential of these two methods in crops by comparing their mechanisms and applications to date in plants. This review will promote the study and application of both CENH3- and MTL-mediated haploid induction in plants.
Collapse
Affiliation(s)
- Song Wang
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian China
| | - Weiwei Jin
- College of Agriculture, China Agricultural University, No. 2, Yuan Ming Yuan West Road, Haidian District, Beijing, 100193 China
| | - Kai Wang
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian China
- National Engineering Research Center of Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002 China
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Fujian Agriculture and Forestry University, Fuzhou, 350002 China
| |
Collapse
|