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Revision of Simulium rufibasis (Diptera: Simuliidae) in Japan and Korea: Chromosomes, DNA, and Morphology.
Adler, Peter H; Fukuda, Masako; Takaoka, Hiroyuki; Reeves, Will K; Kim, Sam-Kyu; Otsuka, Yasushi.
Affiliation
  • Adler PH; Department of Plant and Environmental Sciences, Clemson University, Clemson, SC.
  • Fukuda M; Institute for Research Promotion, Oita University, Oita, Japan.
  • Takaoka H; Tropical Infectious Diseases Research and Education Centre, University of Malaya, Kuala Lumpur, Malaysia.
  • Reeves WK; Colorado State University, C. P. Gillette Museum of Arthropod Diversity, Fort Collins, CO.
  • Kim SK; Department of Applied Biology, Kangwon National University, Chuncheon, Korea.
  • Otsuka Y; Research Center for the Pacific Islands, Kagoshima University, Kagoshima City, Kagoshima, Japan.
J Med Entomol ; 57(2): 388-403, 2020 02 27.
Article in En | MEDLINE | ID: mdl-31746337
ABSTRACT
The widespread nominal black fly Simulium (Simulium) rufibasis Brunetti was reexamined morphologically, chromosomally, and molecularly to determine the status of populations in Japan and Korea with respect to S. rufibasis from the type locality in India and to all other known species in the S. (S.) tuberosum species-group. Morphological comparisons established that the species previously known as S. rufibasis in Japan and Korea is distinct from all other species. Consequently, it was described and illustrated as a new species, Simulium (S.) yamatoense. Simulium yokotense Shiraki, formerly a synonym of S. rufibasis, was morphologically reevaluated and considered a species unplaced to species-group in the subgenus Simulium. Chromosomal analyses of S. yamatoense sp. nov. demonstrated that it is unique among all cytologically known species of the S. tuberosum group and is the sister species of the Taiwanese species tentatively known as S. (S.) arisanum Shiraki. Populations of S. yamatoense sp. nov. included two cytoforms, based on the sex chromosomes. Cytoform A, including topotypical representatives, was found in Kyushu, Japan, whereas cytoform B was found in Korea and Honshu, Japan. Molecular analysis based on the COI mitochondrial gene generally corroborated morphological and chromosomal data that S. yamatoense sp. nov. is a distinct species and, like the chromosomal data, indicate that it is most closely related to S. arisanum, with interspecific genetic distance of 2.92-4.63%.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Simuliidae / Chromosomes, Insect / Polytene Chromosomes Limits: Animals Country/Region as subject: Asia Language: En Journal: J Med Entomol Year: 2020 Document type: Article Affiliation country: Seychelles

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Simuliidae / Chromosomes, Insect / Polytene Chromosomes Limits: Animals Country/Region as subject: Asia Language: En Journal: J Med Entomol Year: 2020 Document type: Article Affiliation country: Seychelles
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