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      Diversity of tortricid moths in apple orchards: evidence for a cryptic species of Grapholita (Lepidoptera: Tortricidae) from China.

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          Abstract

          Understanding herbivore diversity both at the species and genetic levels is a key to effective pest management. We examined moth samples from multiple locations from a major apple growing region in China. For specimen collection, we used a pheromone trap designed to attract Grapholita molesta (Busck) (Lepidoptera: Tortricidae). Surprisingly, we found a second species captured at high proportions. Its external morphology (e.g., male genitalia and forewing coloration) was the same as for Grapholita funebrana Treitschke (Lepidoptera: Tortricidae) specimens from Europe. However, the barcode sequence of the mitochondrial gene cytochrome oxidase I (COI) diverged markedly between specimens from China and Europe, and the genetic distance value between the specimens from the two regions as estimated using the Juke-Cantor (JC) model amounted to 0.067. These morphological and molecular findings together point to a cryptic species in G. funebrana from China. Further molecular analyses based on COI and COII genes revealed its extremely high genetic diversity, indicating that the origin of this species includes the sampling region. Moreover, molecular data suggest that this species passed through a recent population expansion. This is the first report on a cryptic species in G. funebrana, as well as the first report on its genetic diversity.

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          Author and article information

          Journal
          Bull. Entomol. Res.
          Bulletin of entomological research
          Cambridge University Press (CUP)
          1475-2670
          0007-4853
          Nov 04 2016
          Affiliations
          [1 ] College of Plant Protection, Northwest A&F University,Yangling 712100,China.
          [2 ] ETH Zurich, Applied Entomology,Schmelzbergstrasse 9/LFO, 8092 Zurich,Switzerland.
          Article
          S0007485316000973
          10.1017/S0007485316000973
          27809942
          e645b11b-d044-4b94-b443-6e7d428bff73
          History

          Grapholita funebrana,cryptic,genetic diversity,haplotype,mtDNA

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