1
|
Yuan C, Zeng J, Liu Y, Yu H, Tong Z, Zhang J, Gao Q, Wang Z, Sui X, Xiao B, Huang C. Establishment and application of Agrobacterium-delivered CRISPR/Cas9 system for wild tobacco ( Nicotiana alata) genome editing. FRONTIERS IN PLANT SCIENCE 2024; 15:1329697. [PMID: 38501140 PMCID: PMC10944875 DOI: 10.3389/fpls.2024.1329697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 02/16/2024] [Indexed: 03/20/2024]
Abstract
Clustered regularly interspaced short palindromic repeats (CRISPR)-associated protein 9 (CRISPR-Cas9) system has been widely applied in cultivated crops, but limited in their wild relatives. Nicotiana alata is a typical wild species of genus Nicotiana that is globally distributed as a horticultural plant and well-studied as a self-incompatibility model. It also has valuable genes for disease resistance and ornamental traits. However, it lacks an efficient genetic transformation and genome editing system, which hampers its gene function and breeding research. In this study, we developed an optimized hypocotyl-mediated transformation method for CRISPR-Cas9 delivery. The genetic transformation efficiency was significantly improved from approximately 1% to over 80%. We also applied the CRISPR-Cas9 system to target the phytoene desaturase (NalaPDS) gene in N. alata and obtained edited plants with PDS mutations with over 50% editing efficiency. To generate self-compatible N. alata lines, a polycistronic tRNA-gRNA (PTG) strategy was used to target exonic regions of allelic S-RNase genes and generate targeted knockouts simultaneously. We demonstrated that our system is feasible, stable, and high-efficiency for N. alata genome editing. Our study provides a powerful tool for basic research and genetic improvement of N. alata and an example for other wild tobacco species.
Collapse
Affiliation(s)
- Cheng Yuan
- Yunnan Academy of Tobacco Agricultural Sciences, Key Laboratory of Tobacco Biotechnological Breeding, National Tobacco Genetic Engineering Research Center, Kunming, China
| | - Jianmin Zeng
- Yunnan Academy of Tobacco Agricultural Sciences, Key Laboratory of Tobacco Biotechnological Breeding, National Tobacco Genetic Engineering Research Center, Kunming, China
| | - Yong Liu
- Yunnan Academy of Tobacco Agricultural Sciences, Key Laboratory of Tobacco Biotechnological Breeding, National Tobacco Genetic Engineering Research Center, Kunming, China
| | - Haiqin Yu
- Yunnan Academy of Tobacco Agricultural Sciences, Key Laboratory of Tobacco Biotechnological Breeding, National Tobacco Genetic Engineering Research Center, Kunming, China
| | - Zhijun Tong
- Yunnan Academy of Tobacco Agricultural Sciences, Key Laboratory of Tobacco Biotechnological Breeding, National Tobacco Genetic Engineering Research Center, Kunming, China
| | - Jianduo Zhang
- Technology Center, China Tobacco Yunnan Industrial Co. LTD, Kunming, China
| | - Qian Gao
- Technology Center, China Tobacco Yunnan Industrial Co. LTD, Kunming, China
| | - Zhong Wang
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Xueyi Sui
- Yunnan Academy of Tobacco Agricultural Sciences, Key Laboratory of Tobacco Biotechnological Breeding, National Tobacco Genetic Engineering Research Center, Kunming, China
| | - Bingguang Xiao
- Yunnan Academy of Tobacco Agricultural Sciences, Key Laboratory of Tobacco Biotechnological Breeding, National Tobacco Genetic Engineering Research Center, Kunming, China
| | - Changjun Huang
- Yunnan Academy of Tobacco Agricultural Sciences, Key Laboratory of Tobacco Biotechnological Breeding, National Tobacco Genetic Engineering Research Center, Kunming, China
| |
Collapse
|
2
|
Zhang YF, Chen ST, Gao Y, Yang L, Yu H. Prediction of global potential suitable habitats of Nicotiana alata Link et Otto based on MaxEnt model. Sci Rep 2023; 13:4851. [PMID: 36964182 PMCID: PMC10038996 DOI: 10.1038/s41598-023-29678-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 02/08/2023] [Indexed: 03/26/2023] Open
Abstract
Nicotiana alata Link et Otto, widely used in landscaping, is not only of great ornamental value but also of high commercial and medical value. The global potential habitat of N. alata and the environmental factors affecting its distribution are not that clear at present. To provide a reference for the reasonable and extensive planting of N. alata now and in the future, the MaxEnt model was used to predict its global suitable habitats under current and future climate conditions, respectively, based on global geographic distribution data of N. alata and the current and future world bioclimatic variables. The results showed that mean temperature of the driest quarter (bio9), precipitation of driest month (bio14), precipitation seasonality (bio15) and max temperature of warmest month (bio5), were the key bioclimatic variables governing the distribution of N. alata. The global suitable habitats of N. alata were mainly distributed in Europe, the United States, southeastern South America, and China under current climate conditions. Compared with current climate conditions, the future climate decreased suitable habitats of N. alata under SSP1-2.6, and SSP2-4.5 scenario and increased suitable habitats of N. alata under SSP3-7.0, and SSP5-8.5 climatic scenarios. The results provided valuable information and theoretical reference for the reasonable planting of N. alata.
Collapse
Affiliation(s)
- Yan-Fang Zhang
- College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, China
| | - Shu-Tong Chen
- College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, China
| | - Yun Gao
- College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, China
| | - Long Yang
- College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, China.
| | - Hua Yu
- College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, China.
| |
Collapse
|
3
|
Del Duca S, Aloisi I, Parrotta L, Cai G. Cytoskeleton, Transglutaminase and Gametophytic Self-Incompatibility in the Malinae (Rosaceae). Int J Mol Sci 2019; 20:ijms20010209. [PMID: 30626063 PMCID: PMC6337636 DOI: 10.3390/ijms20010209] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 12/21/2018] [Accepted: 01/04/2019] [Indexed: 12/14/2022] Open
Abstract
Self-incompatibility (SI) is a complex process, one out of several mechanisms that prevent plants from self-fertilizing to maintain and increase the genetic variability. This process leads to the rejection of the male gametophyte and requires the co-participation of numerous molecules. Plants have evolved two distinct SI systems, the sporophytic (SSI) and the gametophytic (GSI) systems. The two SI systems are markedly characterized by different genes and proteins and each single system can also be divided into distinct subgroups; whatever the mechanism, the purpose is the same, i.e., to prevent self-fertilization. In Malinae, a subtribe in the Rosaceae family, i.e., Pyrus communis and Malus domestica, the GSI requires the production of female determinants, known as S-RNases, which penetrate the pollen tube to interact with the male determinants. Beyond this, the penetration of S-RNase into the pollen tube triggers a series of responses involving membrane proteins, such as phospholipases, intracellular variations of cytoplasmic Ca2+, production of reactive oxygen species (ROS) and altered enzymatic activities, such as that of transglutaminase (TGase). TGases are widespread enzymes that catalyze the post-translational conjugation of polyamines (PAs) to different protein targets and/or the cross-linking of substrate proteins leading to the formation of cross-linked products with high molecular mass. When actin and tubulin are the substrates, this destabilizes the cytoskeleton and inhibits the pollen-tube's growth process. In this review, we will summarize the current knowledge of the relationship between S-RNase penetration, TGase activity and cytoskeleton function during GSI in the Malinae.
Collapse
Affiliation(s)
- Stefano Del Duca
- Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Bologna, Via Irnerio 42, 40126 Bologna, Italy.
| | - Iris Aloisi
- Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Bologna, Via Irnerio 42, 40126 Bologna, Italy.
| | - Luigi Parrotta
- Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Bologna, Via Irnerio 42, 40126 Bologna, Italy.
- Dipartimento di Scienze della Vita, Università di Siena, Via Mattioli 4, 53100 Siena, Italy.
| | - Giampiero Cai
- Dipartimento di Scienze della Vita, Università di Siena, Via Mattioli 4, 53100 Siena, Italy.
| |
Collapse
|
4
|
Yang Q, Meng D, Gu Z, Li W, Chen Q, Li Y, Yuan H, Yu J, Liu C, Li T. Apple S-RNase interacts with an actin-binding protein, MdMVG, to reduce pollen tube growth by inhibiting its actin-severing activity at the early stage of self-pollination induction. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2018; 95:41-56. [PMID: 29667261 DOI: 10.1111/tpj.13929] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 03/24/2018] [Accepted: 03/27/2018] [Indexed: 06/08/2023]
Abstract
In S-RNase-mediated self-incompatibility, S-RNase secreted from the style destroys the actin cytoskeleton of the self-pollen tubes, eventually halting their growth, but the mechanism of this process remains unclear. In vitro biochemical assays revealed that S-RNase does not bind or sever filamentous actin (F-actin). In apple (Malus domestica), we identified an actin-binding protein containing myosin, villin and GRAM (MdMVG), that physically interacts with S-RNase and directly binds and severs F-actin. Immunofluorescence assays and total internal reflection fluorescence microscopy indicated that S-RNase inhibits the F-actin-severing activity of MdMVG in vitro. In vivo, the addition of S-RNase to self-pollen tubes increased the fluorescence intensity of actin microfilaments and reduced the severing frequency of microfilaments and the rate of pollen tube growth in self-pollination induction in the presence of MdMVG overexpression. By generating 25 single-, double- and triple-point mutations in the amino acid motif E-E-K-E-K of MdMVG via mutagenesis and testing the resulting mutants with immunofluorescence, we identified a triple-point mutant, MdMVG(E167A/E171A/K185A) , that no longer has F-actin-severing activity or interacts with any of the four S-haplotype S-RNases, indicating that all three amino acids (E167, E171 and K185) are essential for the severing activity of MdMVG and its interaction with S-RNases. We conclude that apple S-RNase interacts with MdMVG to reduce self-pollen tube growth by inhibiting its F-actin-severing activity.
Collapse
Affiliation(s)
- Qing Yang
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing, 100193, China
| | - Dong Meng
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing, 100193, China
| | - Zhaoyu Gu
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing, 100193, China
| | - Wei Li
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing, 100193, China
| | - Qiuju Chen
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing, 100193, China
| | - Yang Li
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing, 100193, China
| | - Hui Yuan
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing, 100193, China
| | - Jie Yu
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing, 100193, China
| | - Chunsheng Liu
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing, 100193, China
| | - Tianzhong Li
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing, 100193, China
| |
Collapse
|
5
|
Li W, Meng D, Gu Z, Yang Q, Yuan H, Li Y, Chen Q, Yu J, Liu C, Li T. Apple S-RNase triggers inhibition of tRNA aminoacylation by interacting with a soluble inorganic pyrophosphatase in growing self-pollen tubes in vitro. THE NEW PHYTOLOGIST 2018; 218:579-593. [PMID: 29424440 DOI: 10.1111/nph.15028] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Accepted: 01/04/2018] [Indexed: 05/21/2023]
Abstract
Apple exhibits S-RNase-based self-incompatibility (SI), in which S-RNase plays a central role in rejecting self-pollen. It has been proposed that the arrest of pollen growth in SI of Solanaceae plants is a consequence of the degradation of pollen rRNA by S-RNase; however, the underlying mechanism in Rosaceae is still unclear. Here, we used S2 -RNase as a bait to screen an apple pollen cDNA library and characterized an apple soluble inorganic pyrophosphatase (MdPPa) that physically interacted with S-RNases. When treated with self S-RNases, apple pollen tubes showed a marked growth inhibition, as well as a decrease in endogenous soluble pyrophosphatase activity and elevated levels of inorganic pyrophosphate (PPi). In addition, S-RNase was found to bind to two variable regions of MdPPa, resulting in a noncompetitive inhibition of its activity. Silencing of MdPPa expression led to a reduction in pollen tube growth. Interestingly, tRNA aminoacylation was inhibited in self S-RNase-treated or MdPPa-silenced pollen tubes, resulting in the accumulation of uncharged tRNA. Furthermore, we provide evidence showing that this disturbance of tRNA aminoacylation is independent of RNase activity. We propose an alternative mechanism differing from RNA degradation to explain the cytotoxicity of the S-RNase apple SI process.
Collapse
Affiliation(s)
- Wei Li
- Laboratory of Fruit Cell and Molecular Breeding, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Dong Meng
- Laboratory of Fruit Cell and Molecular Breeding, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Zhaoyu Gu
- Laboratory of Fruit Cell and Molecular Breeding, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Qing Yang
- Laboratory of Fruit Cell and Molecular Breeding, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Hui Yuan
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
| | - Yang Li
- Laboratory of Fruit Cell and Molecular Breeding, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Qiuju Chen
- Laboratory of Fruit Cell and Molecular Breeding, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Jie Yu
- Laboratory of Fruit Cell and Molecular Breeding, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Chunsheng Liu
- Laboratory of Fruit Cell and Molecular Breeding, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Tianzhong Li
- Laboratory of Fruit Cell and Molecular Breeding, College of Horticulture, China Agricultural University, Beijing, 100193, China
| |
Collapse
|
6
|
Jimenez-Quesada MJ, Carmona R, Lima-Cabello E, Traverso JÁ, Castro AJ, Claros MG, Alché JDD. Generation of nitric oxide by olive (Olea europaea L.) pollen during in vitro germination and assessment of the S-nitroso- and nitro-proteomes by computational predictive methods. Nitric Oxide 2017. [PMID: 28645873 DOI: 10.1016/j.niox.2017.06.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Nitric oxide is recognized as a signaling molecule involved in a broad range of physiological processes in plants including sexual reproduction. NO has been detected in the pollen grain at high levels and regulates pollen tube growth. Previous studies demonstrated that NO as well as ROS are produced in the olive reproductive tissues in a stage- and tissue-specific manner. The aim of this study was to assess the production of NO throughout the germination of olive (Olea europaea L.) pollen in vitro. The NO fluorescent probe DAF-2DA was used to image NO production in situ, which was correlated to pollen viability. Moreover, by means of a fluorimetric assay we showed that growing pollen tubes release NO. GSNO -a mobile reservoir of NO, formed by the S-nitrosylation of NO with reduced glutathione (GSH) - was for the first time detected and quantified at different stages of pollen tube growth using a LC-ES/MS analysis. Exogenous NO donors inhibited both pollen germination and pollen tube growth and these effects were partially reverted by the specific NO-scavenger c-PTIO. However, little is known about how NO affects the germination process. With the aim of elucidating the putative relevance of protein S-nitrosylation and Tyr-nitration as important post-translational modifications in the development and physiology of the olive pollen, a de novo assembled and annotated reproductive transcriptome from olive was challenged in silico for the putative capability of transcripts to become potentially modified by S-nitrosylation/Tyr-nitration according to well-established criteria. Numerous gene products with these characteristics were identified, and a broad discussion as regards to their potential role in plant reproduction was built after their functional classification. Moreover, the importance of both S-nitrosylation/Tyr-nitrations was experimentally assessed and validated by using Western blotting, immunoprecipitation and proteomic approaches.
Collapse
Affiliation(s)
- María José Jimenez-Quesada
- Plant Reproductive Biology Laboratory, Department of Biochemistry, Cellular and Molecular Biology of Plants, Estación Experimental del Zaidín (CSIC), Profesor Albareda 1, 18008 Granada, Spain
| | - Rosario Carmona
- Plant Reproductive Biology Laboratory, Department of Biochemistry, Cellular and Molecular Biology of Plants, Estación Experimental del Zaidín (CSIC), Profesor Albareda 1, 18008 Granada, Spain
| | - Elena Lima-Cabello
- Plant Reproductive Biology Laboratory, Department of Biochemistry, Cellular and Molecular Biology of Plants, Estación Experimental del Zaidín (CSIC), Profesor Albareda 1, 18008 Granada, Spain
| | - José Ángel Traverso
- Plant Reproductive Biology Laboratory, Department of Biochemistry, Cellular and Molecular Biology of Plants, Estación Experimental del Zaidín (CSIC), Profesor Albareda 1, 18008 Granada, Spain
| | - Antonio Jesús Castro
- Plant Reproductive Biology Laboratory, Department of Biochemistry, Cellular and Molecular Biology of Plants, Estación Experimental del Zaidín (CSIC), Profesor Albareda 1, 18008 Granada, Spain
| | - M Gonzalo Claros
- Departamento de Biología Molecular y Bioquímica, Universidad de Málaga, Málaga, Spain
| | - Juan de Dios Alché
- Plant Reproductive Biology Laboratory, Department of Biochemistry, Cellular and Molecular Biology of Plants, Estación Experimental del Zaidín (CSIC), Profesor Albareda 1, 18008 Granada, Spain.
| |
Collapse
|
7
|
Serrano I, Romero-Puertas MC, Sandalio LM, Olmedilla A. The role of reactive oxygen species and nitric oxide in programmed cell death associated with self-incompatibility. JOURNAL OF EXPERIMENTAL BOTANY 2015; 66:2869-76. [PMID: 25750430 DOI: 10.1093/jxb/erv083] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Successful sexual reproduction often relies on the ability of plants to recognize self- or genetically-related pollen and prevent pollen tube growth soon after germination in order to avoid self-fertilization. Angiosperms have developed different reproductive barriers, one of the most extended being self-incompatibility (SI). With SI, pistils are able to reject self or genetically-related pollen thus promoting genetic variability. There are basically two distinct systems of SI: gametophytic (GSI) and sporophytic (SSI) based on their different molecular and genetic control mechanisms. In both types of SI, programmed cell death (PCD) has been found to play an important role in the rejection of self-incompatible pollen. Although reactive oxygen species (ROS) were initially recognized as toxic metabolic products, in recent years, a new role for ROS has become apparent: the control and regulation of biological processes such as growth, development, response to biotic and abiotic environmental stimuli, and PCD. Together with ROS, nitric oxide (NO) has become recognized as a key regulator of PCD. PCD is an important mechanism for the controlled elimination of targeted cells in both animals and plants. The major focus of this review is to discuss how ROS and NO control male-female cross-talk during fertilization in order to trigger PCD in self-incompatible pollen, providing a highly effective way to prevent self-fertilization.
Collapse
Affiliation(s)
- Irene Serrano
- Departamento de Bioquímica, Biología Celular y Molecular de Plantas, Estación Experimental del Zaidín, CSIC, Profesor Albareda 1, E-18008 Granada, Spain
| | - María C Romero-Puertas
- Departamento de Bioquímica, Biología Celular y Molecular de Plantas, Estación Experimental del Zaidín, CSIC, Profesor Albareda 1, E-18008 Granada, Spain
| | - Luisa M Sandalio
- Departamento de Bioquímica, Biología Celular y Molecular de Plantas, Estación Experimental del Zaidín, CSIC, Profesor Albareda 1, E-18008 Granada, Spain
| | - Adela Olmedilla
- Departamento de Bioquímica, Biología Celular y Molecular de Plantas, Estación Experimental del Zaidín, CSIC, Profesor Albareda 1, E-18008 Granada, Spain
| |
Collapse
|