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Morimoto T, Kitamura Y, Numaguchi K, Itai A. Characterization of transcriptomic response in ovules derived from inter-subgeneric hybridization in Prunus (Rosaceae) species. PLANT REPRODUCTION 2021; 34:255-266. [PMID: 34165636 DOI: 10.1007/s00497-021-00423-2] [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: 11/09/2020] [Accepted: 06/18/2021] [Indexed: 06/13/2023]
Abstract
Characterization of hybrid seed failure in Prunus provides insight into conserved or lineage-specific hybrid incompatibility mechanisms in plant species. Postzygotic hybrid incompatibility resulting from a cross between different species involves complex mechanisms occurring at various developmental stages. Embryo arrest, followed by seed abortion, is the first stage of such incompatibility reactions and inhibits hybrid seed development. In Prunus, a rosaceous woody species, some interspecific crosses result in fruit drop during the early stage of fruit development, in which inferior seed development may be accounted for the observed hybrid incompatibility. In this study, we investigated ovule development and the transcriptomes of developing ovules in inter-subgeneric crosses of Prunus. We conducted a cross of Prunus mume (subgenus Prunus), pollinated by P. persica (subgenus Amygdalus), and found that ovule and seed coat degeneration occurs before fruit drop. Transcriptome analysis identified differentially expressed genes enriched in several GO pathways, including organelle development, stimulus response, and signaling. Among these pathways, the organelle-related genes were actively regulated during ovule development, as they showed higher expression in the early stage of interspecific crosses and declined in the later stage, suggesting that the differential regulation of organelle function may induce the degeneration of hybrid ovules. Additionally, genes related to ovule and seed coat development, such as genes encoding AGL-like and auxin response, were differentially regulated in Prunus interspecific crosses. Our results provide histological and molecular information on hybrid seed abortion in Prunus that could be utilized to develop new hybrid crops. Additionally, we compared and discussed transcriptome responses to hybrid seed failure in Prunus and other plant species, which provides insight into conserved or lineage-specific hybrid incompatibility mechanisms in some plant species.
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Affiliation(s)
- Takuya Morimoto
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, 619-0244, Japan.
| | - Yuto Kitamura
- Japanese Apricot Laboratory, Wakayama Fruit Tree Experiment Station, Wakayama, 645-0021, Japan
- Faculty of Agriculture, Setsunan University, Osaka, 573-0101, Japan
| | - Koji Numaguchi
- Japanese Apricot Laboratory, Wakayama Fruit Tree Experiment Station, Wakayama, 645-0021, Japan
| | - Akihiro Itai
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, 619-0244, Japan
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Ricci A, Sabbadini S, Prieto H, Padilla IM, Dardick C, Li Z, Scorza R, Limera C, Mezzetti B, Perez-Jimenez M, Burgos L, Petri C. Genetic Transformation in Peach ( Prunus persica L.): Challenges and Ways Forward. PLANTS (BASEL, SWITZERLAND) 2020; 9:E971. [PMID: 32752031 PMCID: PMC7465125 DOI: 10.3390/plants9080971] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/28/2020] [Accepted: 07/29/2020] [Indexed: 12/19/2022]
Abstract
Almost 30 years have passed since the first publication reporting regeneration of transformed peach plants. Nevertheless, the general applicability of genetic transformation of this species has not yet been established. Many strategies have been tested in order to obtain an efficient peach transformation system. Despite the amount of time and the efforts invested, the lack of success has significantly limited the utility of peach as a model genetic system for trees, despite its relatively short generation time; small, high-quality genome; and well-studied genetic resources. Additionally, the absence of efficient genetic transformation protocols precludes the application of many biotechnological tools in peach breeding programs. In this review, we provide an overview of research on regeneration and genetic transformation in this species and summarize novel strategies and procedures aimed at producing transgenic peaches. Promising future approaches to develop a robust peach transformation system are discussed, focusing on the main bottlenecks to success including the low efficiency of A. tumefaciens-mediated transformation, the low level of correspondence between cells competent for transformation and those that have regenerative competence, and the high rate of chimerism in the few shoots that are produced following transformation.
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Affiliation(s)
- Angela Ricci
- Department of Agricultural, Food and Environmental Sciences, Università Politecnica delle Marche, 60131 Ancona, Italy
| | - Silvia Sabbadini
- Department of Agricultural, Food and Environmental Sciences, Università Politecnica delle Marche, 60131 Ancona, Italy
| | - Humberto Prieto
- Laboratorio de Biotecnología, La Platina Research Station, Instituto de Investigaciones Agropecuarias, Santa Rosa, La Pintana, Santiago 11610, Chile
| | - Isabel Mg Padilla
- Área de Genómica y Biotecnología, Grupo de Morfogénesis y Modificación Genética, IFAPA-Centro de Churriana, Cortijo de la Cruz s/n, 29140 Málaga, Spain
| | - Chris Dardick
- USDA-ARS-Appalachian Fruit Research Station, 2217 Wiltshire Road, Kearneysville, WV 25430, USA
| | - Zhijian Li
- USDA-ARS-Appalachian Fruit Research Station, 2217 Wiltshire Road, Kearneysville, WV 25430, USA
| | - Ralph Scorza
- Ralph Scorza LLC, Plant Breeding and Biotechnology Consulting Services, P.O. Box 1191, Shepherdstown, WV 25443, USA
| | - Cecilia Limera
- Department of Agricultural, Food and Environmental Sciences, Università Politecnica delle Marche, 60131 Ancona, Italy
| | - Bruno Mezzetti
- Department of Agricultural, Food and Environmental Sciences, Università Politecnica delle Marche, 60131 Ancona, Italy
| | - Margarita Perez-Jimenez
- Mejora Genética de Cítricos, Instituto Murciano de Investigación y Desarrollo Agroalimentario (IMIDA), C/ Mayor s/n, 30150 Murcia, Spain
| | - Lorenzo Burgos
- Departamento de Mejora Vegetal, Grupo de Biotecnología de Frutales, CEBAS-CSIC, Campus Universitario de Espinardo, 30100 Espinardo, Murcia, Spain
| | - Cesar Petri
- Departamento de Fruticultura Subtropical y Mediterránea, IHSM-UMA-CSIC, Avenida Dr. Wienberg, s/n. 29750 Algarrobo-Costa, Málaga, Spain
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Ricci A, Capriotti L, Mezzetti B, Navacchi O, Sabbadini S. Adventitious Shoot Regeneration from In Vitro Leaf Explants of the Peach Rootstock Hansen 536. PLANTS (BASEL, SWITZERLAND) 2020; 9:E755. [PMID: 32560119 PMCID: PMC7357001 DOI: 10.3390/plants9060755] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 06/11/2020] [Accepted: 06/12/2020] [Indexed: 12/03/2022]
Abstract
In the present study, an efficient system for the in vitro regeneration of adventitious shoots from the peach rootstock Hansen 536 leaves has been established. Twenty regeneration media containing McCown Woody Plant Medium (WPM) as a basal salt supplemented with different concentrations and combinations of plant growth regulators (PGRs) were tested. Expanded leaves along with their petiole from 3-week-old elongated in vitro shoot cultures were used as starting explants. The highest regeneration rate (up to 53%) was obtained on WPM basal medium enriched with 15.5 μM N6-benzylaminopurine (BAP). The influences on leaf regeneration of the ethylene inhibitor silver thiosulphate (STS) and of different combinations of antibiotics added to the optimized regeneration medium were also investigated. The use of 10 μM STS or carbenicillin (238 μM) combined with cefotaxime (210 μM) significantly increased the average number of regenerating shoots per leaf compared to the control. In vitro shoots were finally elongated, rooted and successfully acclimatized in the greenhouse. The results achieved in this study advances the knowledge on factors affecting leaf organogenesis in Prunus spp., and the regeneration protocol described looks promising for the optimization of new genetic transformation procedures in Hansen 536 and other peach rootstocks and cultivars.
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Affiliation(s)
- Angela Ricci
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy; (A.R.); (L.C.); (B.M.)
| | - Luca Capriotti
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy; (A.R.); (L.C.); (B.M.)
| | - Bruno Mezzetti
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy; (A.R.); (L.C.); (B.M.)
| | | | - Silvia Sabbadini
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy; (A.R.); (L.C.); (B.M.)
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Sabbadini S, Ricci A, Limera C, Baldoni D, Capriotti L, Mezzetti B. Factors Affecting the Regeneration, via Organogenesis, and the Selection of Transgenic Calli in the Peach Rootstock Hansen 536 ( Prunus persica × Prunus amygdalus) to Express an RNAi Construct against PPV Virus. PLANTS (BASEL, SWITZERLAND) 2019; 8:E178. [PMID: 31213013 PMCID: PMC6631258 DOI: 10.3390/plants8060178] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 06/13/2019] [Accepted: 06/15/2019] [Indexed: 01/27/2023]
Abstract
Prunus spp. is one of the most recalcitrant fruit tree species in terms of in vitro regeneration and transformation, mostly when mature tissues are used as explants. The present study describes the in vitro regeneration via indirect organogenesis, and Agrobacterium tumefaciens-mediated transformation of the peach rootstock Hansen 536 (Prunus persica × Prunus amygdalus) through the use of meristematic bulks (MBs) as starting explants. Efficient adventitious shoot regeneration was obtained when Hansen 536 MBs were cultured on an optimized medium consisting of modified McCown Woody Plant medium (WPM) enriched with 4.4 M 6-Benzyladenine (BA), 0.1 M 1-Naphthaleneacetic acid (NAA) and 6.0 g L-1 plant agar S1000 (B&V). MB slices were used later as starting explants for Agrobacterium-mediated transformation to introduce an RNAi construct "ihp35S-PPV194" against PPV virus. Transgenic events were identified by both green fluorescent protein (GFP) screening and kanamycin selection at different concentrations (0, 17 or 42 M). GFP-fluorescent proliferating callus lines were selected and confirmed to stably express the ihp35S-PPV194::eGFP gene construct by molecular analysis. Although shoot regeneration from these transgenic calli has not been obtained yet, this represents one of the few examples of successful attempts in peach genetic transformation from somatic tissues, and also serves as a useful in vitro system for future gene functional analysis in peach.
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Affiliation(s)
- Silvia Sabbadini
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy.
| | - Angela Ricci
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy.
| | - Cecilia Limera
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy.
| | - Dania Baldoni
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy.
| | - Luca Capriotti
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy.
| | - Bruno Mezzetti
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy.
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Hashmi G, Huettel R, Meyer R, Krusberg L, Hammerschlag F. RAPD analysis of somaclonal variants derived from embryo callus cultures of peach. PLANT CELL REPORTS 1997; 16:624-627. [PMID: 30727607 DOI: 10.1007/bf01275503] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/1996] [Revised: 01/06/1997] [Accepted: 01/18/1997] [Indexed: 06/09/2023]
Abstract
Peach [Prunus persica (L.) Batsch] regenerants from cv 'Sunhigh' embryo no. 156, regenerants obtained from cv 'Redhaven' embryo no. 30, and two peach cultivars 'Sunhigh' and 'Redhaven', were screened for polymorphic RAPD (Random Amplified Polymorphic DNA) markers with up to 60 10-mer primers. Although 35 primers produced results with scoreable bands, only 10 of the primers revealed polymorphism for regenerants of embryo no. 156 and cv 'Sunhigh', and 1 revealed a low level of polymorphism for regenerants of embryo no. 30 and cv 'Redhaven'. This study demonstrates the feasibility of using RAPD markers to identify somaclonal variants of peach and provides evidence for the existence of genetic differences among these variants.
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Affiliation(s)
- G Hashmi
- Plant Molecular Biology and Nematology Laboratories USDA/ARS, 20705, Beltsville, MD, USA
- Department of Botany, University of Maryland, 20742, College Park, MD, USA
| | - R Huettel
- Nematology Laboratories, USDA/ARS, 20705, Beltsville, MD, USA
| | - R Meyer
- Nematology Laboratories, USDA/ARS, 20705, Beltsville, MD, USA
| | - L Krusberg
- Department of Botany, University of Maryland, 20742, College Park, MD, USA
| | - F Hammerschlag
- Plant Molecular Biology, USDA/ARS, 20705, Beltsville, MD, USA
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Yancheva S, Gercheva P. Preliminary Studies on Regeneration Capacity of Plum (Prunus Domestica L.) Somatic Tissues in Vitro. BIOTECHNOL BIOTEC EQ 1993. [DOI: 10.1080/13102818.1993.10818740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Mante S, Morgens PH, Scorza R, Cordts JM, Callahan AM. Agrobacterium-Mediated Transformation of Plum (Prunus domestica L.) Hypocotyl Slices and Regeneration of Transgenic Plants. Nat Biotechnol 1991. [DOI: 10.1038/nbt0991-853] [Citation(s) in RCA: 78] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Scorza R, Morgens PH, Cordts JM, Mante S, Callahan AM. Agrobacterium-mediated transformation of peach (Prunus persica L. batsch) leaf segments, immature embryos, and long-term embryogenic callus. ACTA ACUST UNITED AC 1990. [DOI: 10.1007/bf02623625] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Hammerschlag FA. Selection of peach cells for insensitivity to culture filtrates of Xanthomonas campestris pv. pruni and regeneration of resistant plants. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1988; 76:865-869. [PMID: 24232397 DOI: 10.1007/bf00273674] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/1988] [Accepted: 06/10/1988] [Indexed: 06/02/2023]
Abstract
Individual callus cultures were initiated from 400 immature embryos of bacterial leaf spot-susceptible 'Sunhigh' peach. Each was subjected to several selection cycles of a toxic culture filtrate produced by Xanthomonas campestris pv. pruni, the causal agent of leaf spot of peach. Progressively higher concentrations of the filtrate were used in each cycle. Two calli survived, and two plants were regenerated from each of the surviving calli. Each of the four clones was propagated in vitro and tested for whole plant resistance to X. c. pv. pruni. Results from bioassays on greenhouse-grown plants indicated that two out of the four selected clones were significantly more resistant to X. c. pv. pruni than the parental cv 'Sunhigh'. In addition, one clone was significantly more resistant than the moderately resistant cv 'Redhaven'.
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Affiliation(s)
- F A Hammerschlag
- U. S. Department of Agriculture, Agricultural Research Service, Plant Molecular Biology Laboratory, 20705, Beltsville, MD, USA
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11
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james DJ. Cell and Tissue Culture Technology for the Genetic Manipulation of Temperate Fruit Trees. Biotechnol Genet Eng Rev 1987. [DOI: 10.1080/02648725.1987.10647834] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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