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Ji J, Shi Q, Zhang K, Chen L, Zhu X, Li D, Gao X, Niu L, Wang L, Luo J, Cui J. Sexually dimorphic morphology, feeding behavior and gene expression profiles in cotton aphid Aphis gossypii. PEST MANAGEMENT SCIENCE 2023; 79:5152-5161. [PMID: 37642384 DOI: 10.1002/ps.7718] [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: 03/18/2023] [Revised: 05/23/2023] [Accepted: 08/29/2023] [Indexed: 08/31/2023]
Abstract
BACKGROUND Sexual dimorphism exists in most insects; however, less is known about sexual dimorphism in aphids. In this study, we identified sexually dimorphic differences in morphology, feeding behavior and gene expression between sexual females and males of the cotton aphid through electron microscopy, electrical penetration graph techniques and RNA sequencing. RESULTS All males were alate with a slender reddish-yellow body and abdominal yellow-black stripes, whereas all sexual females were apterous with a pudgy green body. Sensillum types on the antennae were identical between the two sexes, although males had more sensilla, possibly because the antennae are significantly longer in males compared with sexual females. In terms of feeding behavior, males spent more time probing mesophyll cells and the phloem sieve, and salivating into the phloem sieve. By contrast, sexual females spent more time ingesting xylem sap. In total, 510 and 724 genes were specifically expressed in sexual females and males, respectively, and were significantly enriched in signaling pathways related to reproduction for sexual females (e.g. ovarian steroidogenesis, oxytocin signaling pathway) and energy and flight for males (e.g. thermogenesis, insulin signaling pathway). Moreover, 8551 differentially expressed genes were identified between the two sexes, of which the 3720 upregulated genes in sexual females were mostly enriched in signaling pathways of metabolism and energy, such as thermogenesis and the citrate cycle. CONCLUSION This study provides insight into sexual dimorphism in aphids and lays a foundation for revealing the molecular mechanism underlying differences between the two sexes in cotton aphid. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Jichao Ji
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, China
| | - Qingyu Shi
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Kaixin Zhang
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, China
| | - Lulu Chen
- College of Agronomy, Xinjiang Agricultural University, Urumqi, China
| | - Xiangzhen Zhu
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, China
| | - Dongyang Li
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, China
| | - Xueke Gao
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, China
| | - Lin Niu
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, China
| | - Li Wang
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, China
| | - Junyu Luo
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, China
| | - Jinjie Cui
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, China
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Zhou H, Jian Y, Shao Q, Guo F, Zhang M, Wan F, Yang L, Liu Y, Yang L, Li Y, Yang P, Li Z, Li S, Ding W. Development of Sustainable Insecticide Candidates for Protecting Pollinators: Insight into the Bioactivities, Selective Mechanism of Action and QSAR of Natural Coumarin Derivatives against Aphids. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:18359-18374. [PMID: 37965968 DOI: 10.1021/acs.jafc.3c03493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
Plants employ abundant toxic secondary metabolites to withstand insect attack, while pollinators can tolerate some natural defensive compounds. Coumarins, as promising green alternatives to chemical insecticides, possess wide application prospects in the crop protection field. Herein, the bioactivities of 30 natural coumarin derivatives against Aphis gossypii were assessed and revealed that 6-methylcoumarin exhibited potent aphicidal activity against aphids but displayed no toxicity to honeybees. Additionally, using biochemical, bioinformatic, and molecular assays, we confirmed that the action mode of 6-methylcoumarin against aphids was by inhibiting acetylcholinesterase (AChE). Meanwhile, functional assays revealed that the difference in action site, which located in Lys585 in aphid AChE (equivalent to Val548 in honeybee AChE), was the principal reason for 6-methylcoumarin being toxic to aphids but safe to pollinators. This action site was further validated by mutagenesis data, which uncovered how 6-methylcoumarin was unique selective to the aphid over honeybee or mammalian AChE. Furthermore, a 2D-QSAR model was established, revealing that the central structural feature was H3m, which offers guidance for the future design of more potent coumarin compounds. This work provides a sustainable strategy to take advantage of coumarin analogues for pest management while protecting nontarget pollinators.
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Affiliation(s)
- Hong Zhou
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Yufan Jian
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Qingyi Shao
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Fuyou Guo
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Miao Zhang
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Fenglin Wan
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Liang Yang
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Ying Liu
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Li Yang
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Yanhong Li
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Pinglong Yang
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Zongquan Li
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Shili Li
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Wei Ding
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
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Wang D, Yang Q, Hu X, Liu B, Wang Y. A Method for Identification of Biotype-Specific Salivary Effector Candidates of Aphid. INSECTS 2023; 14:760. [PMID: 37754728 PMCID: PMC10532216 DOI: 10.3390/insects14090760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/01/2023] [Accepted: 09/09/2023] [Indexed: 09/28/2023]
Abstract
Polyphagous aphids often consist of host-specialized biotypes that perform poorly in non-native hosts. The underlying mechanisms remain unknown. Host-specialized biotypes may express biotype-specific salivary effectors or elicitors that determine aphid hosts. Here, we tried three strategies to identify possible effectors in Malvaceae- (MA) and Cucurbitaceae-specialized (CU) biotypes of the cotton-melon aphid Aphis gossypii Glover. The whole-aphid RNA-seq identified 765 differentially expressed genes (DEGs), and 139 of them were possible effectors; aphid-head RNA-seq identified 523 DEGs were identified, and 98 of them were possible effectors. The homologous genes of published aphid effectors were not differentially expressed between CU and MA. Next, quantitative proteomic analyses of saliva identified 177 possible proteins, and 44 of them were different proteins. However, none of the genes of the 44 proteins were differentially expressed, reflecting the discrepancy between transcriptome and proteome data. Finally, we searched for DEGs of the 177 salivary proteins in the aphid-head transcriptomes, and the salivary proteins with expression differences were regarded as effector candidates. Through this strategy, 11 effector candidates were identified, and their expression differences were all confirmed by RT-qPCR. The combinatorial analysis has great potential to identify biotype-specific effector candidates in aphids and other sap-sucking insects.
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Affiliation(s)
- Duoqi Wang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; (D.W.); (Q.Y.); (X.H.)
| | - Qinglan Yang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; (D.W.); (Q.Y.); (X.H.)
| | - Xiaoyue Hu
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; (D.W.); (Q.Y.); (X.H.)
| | - Biao Liu
- Nanjing Institute of Environmental Science, Ministry of Ecology and Environment of the People’s Republic of China, Nanjing 210042, China;
| | - Yongmo Wang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; (D.W.); (Q.Y.); (X.H.)
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Jiang W, Nasir M, Zhao C. Variation of insulin-related peptides accompanying the differentiation of Aphis gossypii biotypes and their expression profiles. Ecol Evol 2023; 13:e10306. [PMID: 37456079 PMCID: PMC10349280 DOI: 10.1002/ece3.10306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/30/2023] [Accepted: 07/03/2023] [Indexed: 07/18/2023] Open
Abstract
Insulin signaling plays a critical role in regulating various aspects of insect biology, including development, reproduction, and the formation of wing polyphenism. This leads to differentiation among insect populations at different levels. The insulin family exhibits functional variation, resulting in diverse functional pathways. Aphis gossypii Glover, commonly known as the cotton-melon aphid, is a highly adaptable aphid species that has evolved into multiple biotypes. To understand the genetic structure of the insulin family and its evolutionary diversification and expression patterns in A. gossypii, we conducted studies using genome annotation files and RNA-sequencing data. Consequently, we identified 11 insulin receptor protein (IRP) genes in the genomes of the examined biotypes. Among these, eight AgosIRPs were dispersed across the X chromosome, while two were found in tandem on the A1 chromosome. Notably, AgosIRP2 exhibited alternative splicing, resulting in the formation of two isoforms. The AgosIRP genes displayed a high degree of conservation between Hap1 and Hap3, although some variations were observed between their genomes. For instance, a transposon was present in the coding regions of AgosIRP3 and AgosIRP9 in the Hap3 genome but not in the Hap1 genome. RNA-sequencing data revealed that four AgosIRPs were expressed ubiquitously across different morphs of A. gossypii, while others showed specific expression patterns in adult gynopara and adult males. Furthermore, the expression levels of most AgosIRPs decreased upon treatment with the pesticide acetamiprid. These findings demonstrate the evolutionary diversification of AgosIRPs between the genomes of the two biotypes and provide insights into their expression profiles across different morphs, developmental stages, and biotypes. Overall, this study contributes valuable information for investigating aphid genome evolution and the functions of insulin receptor proteins.
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Affiliation(s)
- Weili Jiang
- Basic Experimental Teaching Center of Life SciencesYangzhou UniversityYangzhouChina
| | - Muhammad Nasir
- Agricultural Biotechnology Research Institute, Ayub Agricultural Research Institute (AARI)FaisalabadPakistan
| | - Chenchen Zhao
- Henan International Laboratory for Green Pest Control/College of Plant ProtectionHenan Agricultural UniversityZhengzhouChina
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Boissot N. NLRs are highly relevant resistance genes for aphid pests. CURRENT OPINION IN INSECT SCIENCE 2023; 56:101008. [PMID: 36764482 DOI: 10.1016/j.cois.2023.101008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 01/19/2023] [Accepted: 01/25/2023] [Indexed: 05/03/2023]
Abstract
Since the 20th century, when plant resistance to aphids was available, it has been widely used by farmers and the inheritance of plant resistance has been understood for several crops. However, it is only when the plant-aphid relationship was compared with that of microbial pathogens, that aphid resistance has begun to be understood and integrated into the plant immune network. Three of the four genes identified for plant resistance to aphid encode nucleotide-binding site leucine-rich repeat receptor (NLR) proteins responsible for aphid-effector triggered immunity, and NLRs are serious candidates for aphid resistance in four other plant species. Aphids are vectors for plant viruses, and aphid-effectors triggering immunity when they pierce plant cells are expected to trigger resistance to the viruses transmitted to the plant with effectors, as has been shown for aphid resistance in melon. This dual phenotype increases the interest of NLRs in the control of aphids.
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Affiliation(s)
- Nathalie Boissot
- INRAE, Génétique et Amélioration des Fruits et Légumes, 84143 Montfavet, France.
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Li Q, Cheng Y, Fan J, Chen J. Metabolic relay gene of aphid and primary symbiont as RNAi target loci for aphid control. FRONTIERS IN PLANT SCIENCE 2023; 13:1092638. [PMID: 36743566 PMCID: PMC9890070 DOI: 10.3389/fpls.2022.1092638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 12/23/2022] [Indexed: 06/18/2023]
Abstract
INTRODUCTION Aphids form a stable and mutually beneficial relationship with their primary symbiont Buchnera aphidicola, which play an important role in providing the missing nutrients to the host aphid. Based on the genome sequence of wheat aphid Siotobion miscanthi and its primary symbiont Buchnera that we obtained in our previously study, we identified a metabolic relay gene, ilvA, involved in the isoleucine synthesis pathway between aphids and Buchnera. METHOD In this study, we identified the location and sequence structure of ilvA gene in aphid genome, the expression level in different instars and tissues of aphids, and the effect of reducing ilvA expression on the growth and development of aphids by bioinformatics analysis, quantitative PCR, RNAi and bioassay experiments. RESULT Our study showed that ilvA was expressed at the highest level in the 2nd instar of the aphid, while the expression of this gene was significantly higher in the aphid bacteriocytes than in other tissues. Notably, this gene is localized on the aphid sex chromosome and remains highly conserved and collinearity across different aphid genomes. Knocking down the expression of ilvA reduced the aphid body weight and production. However, the indices of mortality decreased slightly, but were not significantly different, compared to the control. DISCUSSION The results show that the relay genes between aphids and their symbionts in the metabolism of essential nutrients have potential roles in the growth and development of aphids, meanwhile, providing target loci and new ideas for RNAi-based aphid green control strategies.
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Affiliation(s)
- Qian Li
- College of Bioscience and Resource Environment/Key Laboratory of Urban Agriculture (North China), Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Beijing University of Agriculture, Beijing, China
- The State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yu Cheng
- The State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jia Fan
- The State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Julian Chen
- The State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
- Ministry of Agricultural and Rural Affairs -Center of Applied Biological International (MARA-CABI) Joint Laboratory for Bio-Safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
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Chen R, Luo J, Zhu X, Wang L, Zhang K, Li D, Gao X, Niu L, Huangfu N, Ma X, Ji J, Cui J. Dynamic changes in species richness and community diversity of symbiotic bacteria in five reproductive morphs of cotton aphid Aphis gossypii Glover (Hemiptera: Aphididae). Front Microbiol 2023; 13:1086728. [PMID: 36713208 PMCID: PMC9877530 DOI: 10.3389/fmicb.2022.1086728] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 12/21/2022] [Indexed: 01/13/2023] Open
Abstract
Introduction Reproductive polymorphism and symbiotic bacteria are commonly observed in aphids, but their interaction remains largely unclear. In polymorphic aphid species (Aphis gossypii), offspring of parthenogenetic females (PFs) develops into sexuparae which produces gynoparae and males successively. Gynoparae further produces sexual females (SFs), and these sexual females mate with males to produce offspring. Methods In this study, we investigated the dynamic changes of symbiotic bacteria during the above-mentioned five reproductive morph switch in A. gossypii via 16S rRNA sequencing technology. Results The results showed that species richness and community diversity of symbiotic bacteria in males were the highest. Proteobacteria was absolutely dominant bacterial phylum (with relative abundance of more than 90%) in the five reproductive morphs of A. gossypii, and Buchnera was absolutely dominant genus (with relative abundance of >90%), followed by Rhodococcus, Pseudomonas, and Pantoea. Male-killing symbiont Arsenophonus presented the highest relative abundance in gynoparae, a specific morph whose offsprings were exclusively sexual females. Both principal component analysis (PCA) and clustering analysis showed trans-generation similarity in microbial community structure between sexuparae and sexual females, between PFs and gynoparae. PICRUSt 2 analysis showed that symbiotic bacteria in the five reproductive morphs were mainly enriched in metabolic pathways. Discussion Reproductive morph switch induced by environmental changes might be associated with bacterial community variation and sexual polymorphism of aphids. This study provides a new perspective for further deciphering the interactions between microbes and reproductive polymorphism in host aphids.
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Affiliation(s)
- Ruifang Chen
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China,State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Junyu Luo
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China,State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China,Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, China
| | - Xiangzhen Zhu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Li Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Kaixin Zhang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China,Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, China
| | - Dongyang Li
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Xueke Gao
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China,State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China,Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, China
| | - Lin Niu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Ningbo Huangfu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Xiaoyan Ma
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China,State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China,Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, China
| | - Jichao Ji
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China,State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China,Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, China,*Correspondence: Jichao Ji,
| | - Jinjie Cui
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China,State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China,Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, China,Jinjie Cui,
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Sader MA, Costa LA, Souza G, Urdampilleta JD, Simon J, Vaio M. South American Plant Chromosome Numbers Databases: The Information We Have and the Information We Lack on the Most Plant-Diverse Continent. Methods Mol Biol 2023; 2703:211-225. [PMID: 37646948 DOI: 10.1007/978-1-0716-3389-2_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Chromosome numbers have been used in plant taxonomy, and they are still fundamental for taxon delimitation and genome evolution studies. South America is one of the most diverse continents in terms of plant species and there is a considerable number of species not yet analyzed. Accumulated knowledge about plant chromosome numbers has been compiled from online databases, and here we present an overview. The CCDB is one of the largest plant cytological databases and includes data for around 18% of known vascular plants in the world. In this work, we review the information contained in CCDB and in three databases with exclusive information for South America. At present, the three existing databases comprise information on around 1800 plant taxa related to specific regions, countries, or biomes. Efforts are necessary to expand cytological knowledge and to collect all the available information in a plant chromosome database for this continent.
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Affiliation(s)
- Mariela A Sader
- Instituto Multidisciplinario de Biología Vegetal (IMBIV), Universidad de Córdoba - CONICET, Córdoba, Argentina
| | - Lucas A Costa
- Laboratorio de Citogenética Vegetal, Departamento de Botânica, Universidade Federal de Pernambuco, Recife, Brazil
| | - Gustavo Souza
- Laboratorio de Citogenética Vegetal, Departamento de Botânica, Universidade Federal de Pernambuco, Recife, Brazil
| | - Juan D Urdampilleta
- Instituto Multidisciplinario de Biología Vegetal (IMBIV), Universidad de Córdoba - CONICET, Córdoba, Argentina
| | - Joan Simon
- BioC (GReB, IRBio) - Laboratori de Botànica, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Magdalena Vaio
- Laboratorio de Evolución y Domesticación de las Plantas, Departamento de Biología Vegetal, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay.
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Wang YX, Chen HF, Yin ZY, Chen WL, Lu LT. The genetic adaptations of Toxoptera aurantii facilitated its rapid multiple plant hosts dispersal and invasion. Genomics 2022; 114:110472. [PMID: 36055573 DOI: 10.1016/j.ygeno.2022.110472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 08/24/2022] [Accepted: 08/27/2022] [Indexed: 01/14/2023]
Abstract
Toxoptera aurantii Boyer de Fonscolombe (Hemiptera: Aphididae) can attack many plant hosts, including tea (Camellia sinensis L.), citrus (Citrus spp.), lychee (Litchi chinensis Sonn.), banana (Musa spp.), and pineapple (Ananas comasus L.) among others. It is a widely distributed hexapod and one of the most destructive pests in tea plantations, causing enormous economic losses in tea production each year. A high-quality reference genome is important to study the phylogenetics and evolution of T. aurantii because its genome is highly heterozygous and repetitive. We obtained a de novo genome assembly of T. aurantii at the chromosome level using a combination of long Nanopore reads from sequencing with high-throughput chromosome conformation capture technology. When finally assembled, the genome was 318.95 Mb on four chromosomes with a 15.19 Mb scaffold N50. A total of 12,162 genes encoded proteins, while there were 22.01% repetitive sequences that totaled 67.73 Mb. Phylogenetic analyses revealed that T. aurantii and Aphis gossypii parted ways approximately 7.6 million years ago (Mya). We used a combination of long-read single-molecule sequencing with Hi-C-based chromatin interaction maps that resulted in a reference chromosomal level reference genome of T. aurantii that was high quality. Our results will enable the exploration of the genetics behind the special biological features of T. aurantii and also provide a source of data that should be useful to compare the compare genome among the Hemiptera.
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Affiliation(s)
- Yan-Xia Wang
- Provincial Key Laboratory for Agricultural Pest Management of Mountainous Region, Institute of Entomology, Guizhou University, Guiyang 550025, China; College of Tea Science, Guizhou University, Guiyang 550025, China
| | - Hu-Fang Chen
- College of Tea Science, Guizhou University, Guiyang 550025, China
| | - Zheng-Yan Yin
- Provincial Key Laboratory for Agricultural Pest Management of Mountainous Region, Institute of Entomology, Guizhou University, Guiyang 550025, China
| | - Wen-Long Chen
- Provincial Key Laboratory for Agricultural Pest Management of Mountainous Region, Institute of Entomology, Guizhou University, Guiyang 550025, China.
| | - Li-Tang Lu
- College of Tea Science, Guizhou University, Guiyang 550025, China.
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Pacheco ID, Walling LL, Atkinson PW. Gene Editing and Genetic Control of Hemipteran Pests: Progress, Challenges and Perspectives. Front Bioeng Biotechnol 2022; 10:900785. [PMID: 35747496 PMCID: PMC9209771 DOI: 10.3389/fbioe.2022.900785] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/09/2022] [Indexed: 12/16/2022] Open
Abstract
The origin of the order Hemiptera can be traced to the late Permian Period more than 230 MYA, well before the origin of flowering plants 100 MY later in during the Cretaceous period. Hemipteran species consume their liquid diets using a sucking proboscis; for phytophagous hemipterans their mouthparts (stylets) are elegant structures that enable voracious feeding from plant xylem or phloem. This adaptation has resulted in some hemipteran species becoming globally significant pests of agriculture resulting in significant annual crop losses. Due to the reliance on chemical insecticides for the control of insect pests in agricultural settings, many hemipteran pests have evolved resistance to insecticides resulting in an urgent need to develop new, species-specific and environmentally friendly methods of pest control. The rapid advances in CRISPR/Cas9 technologies in model insects such as Drosophila melanogaster, Tribolium castaneum, Bombyx mori, and Aedes aegypti has spurred a new round of innovative genetic control strategies in the Diptera and Lepidoptera and an increased interest in assessing genetic control technologies for the Hemiptera. Genetic control approaches in the Hemiptera have, to date, been largely overlooked due to the problems of introducing genetic material into the germline of these insects. The high frequency of CRISPR-mediated mutagenesis in model insect species suggest that, if the delivery problem for Hemiptera could be solved, then gene editing in the Hemiptera might be quickly achieved. Significant advances in CRISPR/Cas9 editing have been realized in nine species of Hemiptera over the past 4 years. Here we review progress in the Hemiptera and discuss the challenges and opportunities for extending contemporary genetic control strategies into species in this agriculturally important insect orderr.
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Affiliation(s)
- Inaiara D. Pacheco
- Department of Entomology, University of California, Riverside, Riverside, CA, United States
| | - Linda L. Walling
- Department of Botany & Plant Sciences, University of California, Riverside, Riverside, CA, United States
- Institute for Integrative Genome Biology, University of California, Riverside, Riverside, CA, United States
| | - Peter W. Atkinson
- Department of Entomology, University of California, Riverside, Riverside, CA, United States
- Institute for Integrative Genome Biology, University of California, Riverside, Riverside, CA, United States
- *Correspondence: Peter W. Atkinson,
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