ArticleBMC ecology2020
Genetic diversity and differentiation of populations of Chlorops oryzae (Diptera, Chloropidae).
Article in BMC ecology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Exploring genetic diversity and population structure of Turkish Dactylis glomerata L. germplasm using Start Codon Targeted (SCoT) marker system.BMC plant biology · 2026Article
- High Diversity and Genetic Variability of Andean Weevil Populations (Premnotrypes vorax, Curculionidae) from the Amazonas Region on the Basis of Mitochondrial DNA Data.Neotropical entomology · 2025Article
- Phylogenetic relationship of subterranean termiteHeliyon · 2024Article
- Population Genetic Structure ofInsects · 2022Article
- EST-SSR Primer Development and Genetic Structure Analysis ofFrontiers in plant science · 2022Article
- Genetic diversity and genetic differentiation of Megalobrama populations inferred by mitochondrial markers.Genes & genomics · 2021Article
- The complete mitogenome ofMitochondrial DNA. Part B, Resources · 2021Article
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10 authors.
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Abstract
backgroundChlorops oryzae is an important pest of rice crops. There have been frequent outbreaks of this pest in recent years and it has become the main rice pest in some regions. To elucidate the molecular mechanism of frequent C. oryzae outbreaks, we estimated the genetic diversity and genetic differentiation of 20 geographical populations based on a dataset of ISSR markers and COI sequences.
resultsISSR data revealed a high level of genetic diversity among the 20 populations as measured by Shannon's information index (I), Nei's gene diversity (H), and the percentage of polymorphic bands (PPB). The mean coefficient of gene differentiation (Gst) was 0.0997, which indicates that only 9.97% genetic variation is between populations. The estimated gene flow (Nm) value was 4.5165, indicating a high level of gene flow and low, or medium, genetic differentiation among some populations. The results of a Mantel test revealed no significant correlation between genetic and geographic distance among populations, which means there is no evidence of significant genetic isolation by distance. An UPGMA (unweighted pair-group method with arithmetic averages) dendrogram based on genetic identity, did not indicate any major geographic structure for the 20 populations examined. mtDNA COI data indicates low nucleotide (0.0007) and haplotype diversity (0.36) in all populations. Fst values suggest that the 20 populations have low, or medium, levels of genetic differentiation. And the topology of a Neighbor-Joining tree suggests that there are no independent groups among the populations examined.
conclusionsOur results suggest that C. oryzae populations have high genetic diversity at the species level. There is evidence of frequent gene flow and low, or medium, levels of genetic differentiation among some populations. There is no significant correlation between genetic and geographic distance among C. oryzae populations, and therefore no significant isolation by distance. All results are consistent with frequent gene exchange between populations, which could increase the genetic diversity, and hence, adaptability of C. oryzae, thereby promoting frequent outbreaks of this pest. Such knowledge may provide a scientific basis for predicting future outbreaks.
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