Back to Search
Start Over
Viromics unveils extraordinary genetic diversity of the family Closteroviridae in wild citrus
- Source :
- PLoS Pathogens, PLoS Pathogens, Vol 17, Iss 7, p e1009751 (2021)
- Publication Year :
- 2021
-
Abstract
- Our knowledge of citrus viruses is largely skewed toward virus pathology in cultivated orchards. Little is known about the virus diversity in wild citrus species. Here, we used a metatranscriptomics approach to characterize the virus diversity in a wild citrus habitat within the proposed center of the origin of citrus plants. We discovered a total of 44 virus isolates that could be classified into species Citrus tristeza virus and putative species citrus associated ampelovirus 1, citrus associated ampelovirus 2, and citrus virus B within the family Closteroviridae, providing important information to explore the factors facilitating outbreaks of citrus viruses and the evolutionary history of the family Closteroviridae. We found that frequent horizontal gene transfer, gene duplication, and alteration of expression strategy have shaped the genome complexity and diversification of the family Closteroviridae. Recombination frequently occurred among distinct Closteroviridae members, thereby facilitating the evolution of Closteroviridae. Given the potential emergence of similar wild-citrus-originated novel viruses as pathogens, the need for surveillance of their pathogenic and epidemiological characteristics is of utmost priority for global citrus production.<br />Author summary Closterovirids are principal plant pathogens for citrus trees and other plants, as they sometimes cause new or re-emerging diseases. However, the closterovirid diversity in natural plant hosts, especially citrus plants, is unclear. Here, we describe three novel species and Citrus tristeza virus within the family Closteroviridae that were sampled from wild citrus trees growing in their natural habitat in southwestern China. The presence of three different taxon classes of the family Closteroviridae indicates the geographical uniqueness of the sampling region for citrus closterovirid evolution. Our analysis shows that frequent horizontal gene transfer, gene duplication, alteration of expression strategy, and recombination have been important evolutionary processes in the diversification of the family Closteroviridae. Our study also shows the significance of natural reserves as potential sources of disease agents endangering cultivated crop plants.
- Subjects :
- 0106 biological sciences
0301 basic medicine
Citrus
Fruit Crops
01 natural sciences
Database and Informatics Methods
Invertebrate Genomics
Biology (General)
Closteroviridae
Data Management
Genetics
Viral Genomics
biology
Citrus tristeza virus
food and beverages
Eukaryota
Phylogenetic Analysis
Agriculture
Genomics
Plants
Phylogenetics
Viral evolution
Horizontal gene transfer
Sequence Analysis
Research Article
Computer and Information Sciences
food.ingredient
QH301-705.5
Bioinformatics
Immunology
Crops
Microbial Genomics
Research and Analysis Methods
Microbiology
Virus
Viral Evolution
Fruits
03 medical and health sciences
food
Virology
Evolutionary Systematics
Molecular Biology
Plant Diseases
Taxonomy
Genetic diversity
Evolutionary Biology
Organisms
Biology and Life Sciences
RC581-607
biology.organism_classification
Organismal Evolution
030104 developmental biology
Animal Genomics
Microbial Evolution
Parasitology
Immunologic diseases. Allergy
Sequence Alignment
Ampelovirus
010606 plant biology & botany
Crop Science
Subjects
Details
- ISSN :
- 15537374
- Volume :
- 17
- Issue :
- 7
- Database :
- OpenAIRE
- Journal :
- PLoS pathogens
- Accession number :
- edsair.doi.dedup.....13e8e6cdef4386c65fa8daa0b5dbd288