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Zhuang W, Li Y, Shu X, Wang Z, Wang Y, Wang T. Characterization of the complete chloroplast genome of 'Quanhong poplar' ( Populus deltoides W. Bartram ex Humphry Marshall, 2011). Mitochondrial DNA B Resour 2024; 9:285-289. [PMID: 38410200 PMCID: PMC10896124 DOI: 10.1080/23802359.2024.2318391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 02/08/2024] [Indexed: 02/28/2024] Open
Abstract
The color of the leaves is one of the most important factors for horticultural crops that are considered by breeders, and is also attracting more and more attention from economists and academics. 'Quanhong poplar' (QHP), a rare, bright reddish-purple color-leaf cultivar that has been widely cultivated in China as a landscape tree, is a very precious color-leaf cultivar. In the present study, a reference-based assembly was performed using whole-genome sequencing data to characterize the chloroplast genome of 'QHP'. The total chloroplast genome size of 'QHP' is 156,950 bp, which is divided into two inverted repeat structures of 27,649 bp each, a small single-copy region of 16,563 bp, and a large single-copy region (LSC) of 85,089 bp. From the chloroplast genome, 130 genes have been predicted, including 85 protein-coding genes, 37 tRNA genes, and eight rRNA genes. A chloroplast genome containing 36.68% GC content was detected in 'QHP'. Three SNP sites have been developed between 'QHP' and Populus deltoides Zhonglin 2025. Based on the phylogenetic analysis of chloroplast genomes reported for Populus, the chloroplast of 'QHP' is closest to several strains of Populus deltoides.
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Affiliation(s)
- Weibing Zhuang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing, China
| | - Yuhang Li
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing, China
| | - Xiaochun Shu
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing, China
| | - Zhong Wang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing, China
| | - Yan Wang
- Sishui Bureau of Natural Resources and Planning, Jining, China
| | - Tao Wang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing, China
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Du W, Wang Y, Xie D, Li E, Bai Y, Shang C, Zhang Z. Phylogenomics reveal Populusgonggaensis as a hybrid between P.lasiocarpa and P.cathayana (Salicaceae). PHYTOKEYS 2024; 237:161-177. [PMID: 38298498 PMCID: PMC10829108 DOI: 10.3897/phytokeys.237.103012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 01/01/2024] [Indexed: 02/02/2024]
Abstract
High levels of intra-specific polymorphism and frequent hybridisation make it difficult to define species and correctly apply their scientific names. Populus L. is a challenging genus with plentiful natural and artificial hybrids. This study is a part of the project 'Flora of Pan-Himalaya' and aims to determine the taxonomic identity of P.gonggaensis N. Chao & J.R. He and to find out whether it is of hybrid origin. Whole-genome sequencing data were obtained from 57 samples. The SNP matrix was developed for phylogenetic reconstruction, ABBA-BABA statistics, PCA and ADMIXTURE analysis. The results indicate that P.gonggaensis is a spontaneous hybrid between P.lasiocarpa and P.cathayana. This study points out the importance of SNP data and comprehensive analyses for discovering the potential interspecific hybridisation and clarifies the usage of the name. In addition, the lectotype of P.gonggaensis was designated.
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Affiliation(s)
- Wenyan Du
- Laboratory of Systematic Evolution and Biogeography of Woody Plants, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, ChinaBeijing Forestry UniversityBeijingChina
| | - Yachao Wang
- School of Life Science, Fudan University, Shanghai 200433, ChinaFudan UniversityShanghaiChina
| | - Dajun Xie
- Sichuan Academy of Forestry, Chengdu 610000, ChinaSichuan Academy of ForestryChengduChina
| | - Enze Li
- Laboratory of Systematic Evolution and Biogeography of Woody Plants, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, ChinaBeijing Forestry UniversityBeijingChina
| | - Yuran Bai
- Laboratory of Systematic Evolution and Biogeography of Woody Plants, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, ChinaBeijing Forestry UniversityBeijingChina
| | - Ce Shang
- Laboratory of Systematic Evolution and Biogeography of Woody Plants, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, ChinaBeijing Forestry UniversityBeijingChina
| | - Zhixiang Zhang
- Laboratory of Systematic Evolution and Biogeography of Woody Plants, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, ChinaBeijing Forestry UniversityBeijingChina
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Saini A, Pandey S. Calonectria populi sp. nov., causing leaf blight of Populus deltoides in India. World J Microbiol Biotechnol 2023; 40:15. [PMID: 37975907 DOI: 10.1007/s11274-023-03829-4] [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: 07/05/2023] [Accepted: 11/06/2023] [Indexed: 11/19/2023]
Abstract
Populus deltoides is one of the most favored cash crops in northern India. Thus, accurate identification of pathogens affecting P. deltoides is a critical step in finding or developing effective control measures. In June 2020, symptoms of a leaf blight disease were observed on P. deltoides trees planted at Forest Research Institute, Dehradun, India. Calonectria-like fungal isolates were consistently isolated from the infected leaf samples. Morphological features coupled with phylogenetic analysis of combined partial actin (act), calmodulin (cmdA), histone (his3), translation elongation factor 1-alpha (tef1) and β-tubulin (tub2) gene regions of two fungal isolates confirmed a novel species, which is described and illustrated here as Calonectria populi sp. nov. Symptoms similar to those observed in natural conditions were caused by both the isolates on P. deltoides clone AM109 in detached leaf assays and glasshouse inoculation experiments. Finally, Koch's postulates were established by re-isolation and re-identification of the pathogen from the inoculated leaves. This work is the first to confirm a new leaf blight disease of P. deltoides caused by C. populi sp. nov. in India and worldwide.
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Affiliation(s)
- Aditi Saini
- Forest Pathology Discipline, Forest Protection Division, ICFRE-Forest Research Institute, Dehradun, India
| | - Shailesh Pandey
- Forest Pathology Discipline, Forest Protection Division, ICFRE-Forest Research Institute, Dehradun, India.
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Borkhert EV, Pushkova EN, Nasimovich YA, Kostina MV, Vasilieva NV, Murataev RA, Novakovskiy RO, Dvorianinova EM, Povkhova LV, Zhernova DA, Turba AA, Sigova EA, Snezhkina AV, Kudryavtseva AV, Bolsheva NL, Krasnov GS, Dmitriev AA, Melnikova NV. Sex-determining region complements traditionally used in phylogenetic studies nuclear and chloroplast sequences in investigation of Aigeiros Duby and Tacamahaca Spach poplars (genus Populus L., Salicaceae). FRONTIERS IN PLANT SCIENCE 2023; 14:1204899. [PMID: 37860260 PMCID: PMC10582643 DOI: 10.3389/fpls.2023.1204899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 08/07/2023] [Indexed: 10/21/2023]
Abstract
Members of the genus Populus L. play an important role in the formation of forests in the northern hemisphere and are used in urban landscaping and timber production. Populus species of closely related sections show extensive hybridization. Therefore, the systematics of the genus is rather complicated, especially for poplars of hybrid origin. We aimed to assess the efficiency of application of the sex-determining region (SDR) in addition to the nuclear and chloroplast genome loci traditionally used in phylogenetic studies of poplars to investigate relationships in sections Aigeiros Duby and Tacamahaca Spach. Targeted deep sequencing of NTS 5S rDNA, ITS, DSH 2, DSH 5, DSH 8, DSH 12, DSH 29, 6, 15, 16, X18, trnG-psbK-psbI, rps2-rpoC2, rpoC2-rpoC1, as well as SDR and ARR17 gene was performed for 379 poplars. The SDR and ARR17 gene together with traditionally used multicopy and single-copy loci of nuclear and chloroplast DNA allowed us to obtain a clustering that is most consistent with poplar systematics based on morphological data and to shed light on several controversial hypotheses about the origin of the studied taxa (for example, the inexpediency of separating P. koreana, P. maximowiczii, and P. suaveolens into different species). We present a scheme of relationships between species and hybrids of sections Aigeiros and Tacamahaca based on molecular genetic, morphological, and geographical data. The geographical proximity of species and, therefore, the possibility of hybridization between them appear to be more important than the affiliation of species to the same section. We speculate that sections Aigeiros and Tacamahaca are distinguished primarily on an ecological principle (plain and mountain poplars) rather than on a genetic basis. Joint analysis of sequencing data for the SDR and chloroplast genome loci allowed us to determine the ancestors of P. × petrovskoe - P. laurifolia (female tree) × P. × canadensis (male tree), and P. × rasumovskoe - P. nigra (female tree) × P. suaveolens (male tree). Thus, the efficiency of using the SDR for the study of poplars of sections Aigeiros and Tacamahaca and the prospects of its use for the investigation of species of the genus Populus were shown.
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Affiliation(s)
- Elena V. Borkhert
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Elena N. Pushkova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Yuri A. Nasimovich
- State Environmental Protection Budgetary Institution of Moscow “Mospriroda”, Moscow, Russia
| | - Marina V. Kostina
- Institute of Biology and Chemistry, Moscow Pedagogical State University, Moscow, Russia
| | | | - Ramil A. Murataev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
- Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Roman O. Novakovskiy
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Ekaterina M. Dvorianinova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
- Moscow Institute of Physics and Technology, Moscow, Russia
| | - Liubov V. Povkhova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
- Moscow Institute of Physics and Technology, Moscow, Russia
| | - Daiana A. Zhernova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
- Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Anastasia A. Turba
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Elizaveta A. Sigova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
- Moscow Institute of Physics and Technology, Moscow, Russia
| | | | - Anna V. Kudryavtseva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Nadezhda L. Bolsheva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - George S. Krasnov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Alexey A. Dmitriev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
- Moscow Institute of Physics and Technology, Moscow, Russia
| | - Nataliya V. Melnikova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
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Zhao X, Li B, Zhai X, Liu H, Deng M, Fan G. Genome-Wide Analysis of Specific PfR2R3-MYB Genes Related to Paulownia Witches' Broom. Genes (Basel) 2022; 14:genes14010007. [PMID: 36672749 PMCID: PMC9858720 DOI: 10.3390/genes14010007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/17/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022] Open
Abstract
Paulownia witches' broom (PaWB), caused by phytoplasmas, is the most devastating infectious disease of Paulownia. R2R3-MYB transcription factors (TF) have been reported to be involved in the plant's response to infections caused by these pathogens, but a comprehensive study of the R2R3-MYB genes in Paulownia has not been reported. In this study, we identified 138 R2R3-MYB genes distributed on 20 chromosomes of Paulownia fortunei. These genes were classified into 27 subfamilies based on their gene structures and phylogenetic relationships, which indicated that they have various evolutionary relationships and have undergone rich segmental replication events. We determined the expression patterns of the 138 R2R3-MYB genes of P. fortunei by analyzing the RNA sequencing data and found that PfR2R3-MYB15 was significantly up-regulated in P. fortunei in response to phytoplasma infections. PfR2R3-MYB15 was cloned and overexpressed in Populus trichocarpa. The results show that its overexpression induced branching symptoms. Subsequently, the subcellular localization results showed that PfR2R3-MYB15 was located in the nucleus. Yeast two-hybrid and bimolecular fluorescence complementation experiments showed that PfR2R3-MYB15 interacted with PfTAB2. The analysis of the PfR2R3-MYB15 gene showed that it not only played an important role in plant branching, but also might participate in the biosynthesis of photosystem elements. Our results will provide a foundation for future studies of the R2R3-MYB TF family in Paulownia and other plants.
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Affiliation(s)
- Xiaogai Zhao
- Institute of Paulownia, Henan Agricultural University, Zhengzhou 450002, China
| | - Bingbing Li
- Institute of Paulownia, Henan Agricultural University, Zhengzhou 450002, China
| | - Xiaoqiao Zhai
- Forestry Academy of Henan, Zhengzhou 450002, China
- Correspondence: (X.Z.); (G.F.); Tel.: +86-0371-63391935 (X.Z.); +86-0371-63558605 (G.F.)
| | - Haifang Liu
- Institute of Paulownia, Henan Agricultural University, Zhengzhou 450002, China
| | - Minjie Deng
- Institute of Paulownia, Henan Agricultural University, Zhengzhou 450002, China
| | - Guoqiang Fan
- Institute of Paulownia, Henan Agricultural University, Zhengzhou 450002, China
- College of Forestry, Henan Agricultural University, 95 Wenhua Road, Jinshui District, Zhengzhou 450002, China
- Correspondence: (X.Z.); (G.F.); Tel.: +86-0371-63391935 (X.Z.); +86-0371-63558605 (G.F.)
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