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- W2762101409 endingPage "2100" @default.
- W2762101409 startingPage "2100" @default.
- W2762101409 abstract "The mitochondrial cytochrome oxidase I gene (mtCO1) and the ribosomal internal transcribed spacer 2 region (ITS2) are among the most widely used molecular markers for insect taxonomic characterization. Three economically important species of thrips, Scirtothrips dorsalis, Thrips palmi, and Frankliniella occidentalis were selected to examine the extent of intragenomic variation within these two marker regions in the family Thripidae, and determine if this variation would affect the utility of markers in thrips molecular diagnostics. For each species, intragenomic (within individual) variation and intergenomic (among individuals) variation was assessed by cloning and sequencing PCR-amplified copies. Intergenomic variation was generally higher than intragenomic variation except in cases where intergenomic variation was very low, as in mtCO1 from S. dorsalis and F. occidentalis. Intragenomic variation was detected in both markers in all three of the thrips species, however, 2–3 times more intragenomic variation was observed for ITS2 than mtCO1 in both S. dorsalis and T. palmi. Furthermore, levels of intragenomic variation were low for both of the genes in F. occidentalis. In all of the three thrips species, no sex-based clustering of haplotypes was observed in either marker. Unexpected high intragenomic variation in ITS2 for two of three thrips species did not interfere with thrips diagnostics. However, caution should be taken in applying ITS2 to certain studies of S. dorsalis and T. palmi when high levels of intragenomic variation could be problematic or confounding. In such studies, mtCO1 may be a preferable marker. Possible reasons for discrepancies in intragenomic variation among genomic regions are discussed." @default.
- W2762101409 created "2017-10-20" @default.
- W2762101409 creator A5018844743 @default.
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- W2762101409 creator A5063736855 @default.
- W2762101409 creator A5073220677 @default.
- W2762101409 creator A5081602458 @default.
- W2762101409 date "2017-10-06" @default.
- W2762101409 modified "2023-09-26" @default.
- W2762101409 title "Unexpected High Intragenomic Variation in Two of Three Major Pest Thrips Species Does Not Affect Ribosomal Internal Transcribed Spacer 2 (ITS2) Utility for Thrips Identification" @default.
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- W2762101409 doi "https://doi.org/10.3390/ijms18102100" @default.
- W2762101409 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/5666782" @default.
- W2762101409 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/28984819" @default.
- W2762101409 hasPublicationYear "2017" @default.