Morphological and phylogenetic characterization of Tyrophagus putrescentiae schrank (Sarcoptiformes: Acaridae) from Hypsizygus marmoreus in Korea
2017
Choi, K.S. (Kyungpook National University, Daegu (Korea). College of Natural Science) | Park, J.S. | Lee, S.Y. | Hwang, D.U. | Jung, H.Y. | Ohga, S.
The present study reports the morphological and phylogenetic characteristics of Tyrophagus putrescentiae from Hypsizygus marmoreus in Korea. This species is morphologically characterized by two pigmented eyespots on the prodorsal shield, concave posterior margin of coxal plate II, prominently and apically enlarged supracoxal seta shaft at bases of pectinations, and solenidion omega1 on tarsi I and II, respectively and length of setae d1 compared to setae c1 and setae d2. The internal transcribed spacer 2 (ITS2) in the ribosomal DNA (rDNA), which is reliable for species identification, and the cytochrome oxidase subunit I (COI) in the mitochondrial DNA, which is a highly conserved region in eukaryotes, were sequenced. The resulting phylogenetic trees for COI and ITS2 apparently showed that the tested samples in this study were clustered with T. putrescentiae and separated from other species in the genus. This research would be useful for controlling mites from H. marmoreus in Korea and could help improve the quality and quantity of H. marmoreus production.
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