Mitochondrial COI Sequence Variations within and among Geographic Samples of the Hemp Pest Psylliodes attenuata from China.
TLDR
Interestingly, haplotype network analyses suggest evidence for potential mitochondrial recombination in natural populations of this species, and results on its evolution, center of diversity, route of spread, and pest management strategies in hemp fields are discussed.Abstract:
The hemp flea beetle Psylliodes attenuata (Coleoptera: Chrysomelidae: Psylliodes) is a common pest of Cannabis sativa, including cultivars of both industrial hemp and medicinal marijuana. Both the larval and adult stages of this beetle can cause significant damages to C. sativa, resulting in substantial crop losses. At present, little is known about the populations of this pest, including its genetic diversity. In this study, we obtained 281 P. attenuata samples from nine field sites representing broad industrial hemp productions in China and analyzed their DNA sequences at the mitochondrial COI gene, the insect DNA barcode. Our analyses revealed a total of 48 haplotypes, with 28 being found only in one specimen each while the remaining 20 were shared by two or more specimens each. Of the 20 shared haplotypes, eight were shared among local populations often from far away locations, consistent with recent long-distance dispersals. However, the observed putative long-distance dispersals have not obscured the significant genetic differentiations among the regional populations from northeastern, eastern, central and southwestern China. Interestingly, haplotype network analyses suggest evidence for potential mitochondrial recombination in natural populations of this species. We briefly discuss the implications of our results on its evolution, center of diversity, route of spread, and pest management strategies in hemp fields.read more
Citations
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Molecular identification and characterization of the Asian citrus psyllid vector, Diaphorina citri (Hemiptera: Psyllidae) and the transmitted Huanglongbing-associated bacterium, Candidatus Liberibacter asiaticus in India
Investigations on the fauna of Papaver spp. and Cannabis sativa (for UN Division of Narcotic Drugs).
Journal ArticleDOI
Genetic variation of chigger mites in the Republic of Korea
Hyeon Seung Lee,Kwang Shik Choi +1 more
TL;DR: This study first revealed the genetic variation in the COI sequences of chigger mites in the ROK, and could determine how this variation is related to ecological behavior and disease transmission.
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Bacterial and fungal communities within and among geographic samples of the hemp pest Psylliodes attenuata from China
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Analysis of genetic differentiation and gene flow among different geographic populations of Oedaleus infernalis (Orthoptera: Acrididae) based on mtDNA COI gene sequences.
TL;DR: The Bayesian inference(BI) phylogenetic tree and haplotype network showed that haplotypes were distributed in different clades and no obvious geographical structure formed, suggesting that the gene flow among O.infernalis populations is not affected by the geographical distance.
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