Fine-scale genetic structure of the overwintering Chilo suppressalis in the typical bivoltine areas of northern China

The rice stem borer (RSB), Chilo suppressalis (Lepidoptera: Pyralidae), is an important agricultural pest that has caused serious economic losses in the major rice-producing areas of China. To effectively control this pest, we investigated the genetic diversity, genetic differentiation and genetic s...

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Bibliographic Details
Published in:PloS one Vol. 15; no. 12; p. e0243999
Main Authors: Zhu, Ke-Xin, Jiang, Shan, Han, Lei, Wang, Ming-Ming, Wang, Xing-Ya
Format: Journal Article
Language:English
Published: United States Public Library of Science 16.12.2020
Public Library of Science (PLoS)
Subjects:
Agricultural management
Agronomy
Animals
Bayesian analysis
Biology and Life Sciences
Borers
Borers (Insects)
Chilo suppressalis
Clustering
Correlation analysis
Deoxyribonucleic acid
Differentiation
DNA
Earth Sciences
Ecology and Environmental Sciences
Economic impact
Ecosystem
Environmental aspects
Genetic analysis
Genetic aspects
Genetic distance
Genetic diversity
Genetic relationship
Genetic Speciation
Genetic structure
Genome, Insect
Insecticides
Lepidoptera - genetics
Lepidoptera - pathogenicity
Microsatellite Repeats
Microsatellites
Mitochondrial DNA
Oryza - parasitology
Overwintering
People and Places
Pest control
Pests
Polymorphism
Polymorphism, Genetic
Population genetics
Population studies
Populations
Research and Analysis Methods
Rice
Spatial analysis
China
Iran
United States > US
Japan
ISSN:1932-6203, 1932-6203
Online Access:Get full text
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Description
Summary:The rice stem borer (RSB), Chilo suppressalis (Lepidoptera: Pyralidae), is an important agricultural pest that has caused serious economic losses in the major rice-producing areas of China. To effectively control this pest, we investigated the genetic diversity, genetic differentiation and genetic structure of 16 overwintering populations in the typical bivoltine areas of northern China based on 12 nuclear microsatellite loci. Moderate levels of genetic diversity and genetic differentiation among the studied populations were detected. Neighbour-joining dendrograms, Bayesian clustering and principal coordinate analysis (PCoA) consistently divided these populations into three genetic clades: western, eastern and northern/central. Isolation by distance (IBD) and spatial autocorrelation analyses demonstrated no correlation between genetic distance and geographic distance. Bottleneck analysis illustrated that RSB populations had not undergone severe bottleneck effects in these regions. Accordingly, our results provide new insights into the genetic relationships of overwintering RSB populations and thus contribute to developing effective management strategies for this pest.
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Competing Interests: No authors have competing interests.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0243999