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J Econ Entomol

Title:		Genetic differentiation and species diversification of the Adoxophyes orana complex (Lepidoptera: Tortricidae) in East Asia
Author(s):		Tsai CL; Shih LC; Yeh WB; Byun BK; Jinbo U; Ning FY; Sung IH;
Address:		"Department of Entomology, National Chung Hsing University, 145 Xingda Road, South District, Taichung City 40227, Taiwan. Endemic Species Research Institute, Council of Agriculture, Executive Yuan, No. 1 Minsheng East Road, Jiji Town, Nantou County 552005, Taiwan. Department of Biological Science and Biotechnology, Hannam University, 133 Ojeong-dong, Daedeok-gu, Daejeon 34054, South Korea. Department of Zoology, National Museum of Nature and Science, Amakubo 4-1-1 Tsukuba-shi, Ibaraki 305-0005, Japan. Tea Agronomy Section, Tea Research and Extension Station, No. 324 Chung-Hsing Road, Yangmei District, Taoyuan City 326011, Taiwan. Plant quarantine division. Bureau of Animal and Plant Health Inspection and Quarantine, Council of Agriculture, Executive Yuan, No. 100, Sec. 2, Heping W. Rd., Zhongzheng Dist., Taipei City 100060, Taiwan. Department of Plant Medicine, National Chiayi University, No. 300 Syuefu Road, Chiayi City 600355, Taiwan"
Journal Title:		J Econ Entomol
Year:		2023
Volume:		20230806
Issue:
Page Number:		-
DOI:		10.1093/jee/toad155
ISSN/ISBN:		1938-291X (Electronic) 0022-0493 (Linking)
Abstract:		"The Adoxophyes tea tortrix (Lepidoptera: Tortricidae) is a group of leaf rollers that cause enormous economic losses on tea and apple crops. In East Asia, taxonomic ambiguity of the Adoxophyes orana complex (AOC), which consists of A. orana, A. dubia, A. honmai, and A. paraorana, has persisted for decades because of vague diagnostic characters. In this study, differences in the AOC were examined to improve species identification, determine genetic variations, and develop control strategies. Analyses revealed that A. orana comprised 2 lineages, a widely distributed Palearctic lineage and an East Asian lineage that was nested with other Asian species. Genetic divergence of >3% is proposed to confirm the AOC species that would benefit subsequent taxonomic revision. The monophyletic Taiwanese A. sp. with 2.8-4% from other AOC species appeared to suggest it as an independent taxon, and low interspecific divergence between A. honmai and A. dubia of 0.3% indicated possibility of recent divergence or intraspecific variations. Our result further suggested that the Z9-14:Ac ratio of semiochemicals could be a reference for the reblending of pheromone attractants in Taiwanese tea plantations. Moreover, the AOC species appeared to have a tendency of specific geographic distributions, with A. dubia and A. honmai in Japan and China, A. paraorana in Korea, and A. sp. in Taiwan. Maintaining the unique genetic composition of Adoxophyes species in each geographic region and preventing the possible invasions into those AOC-free countries through the transportation of host plants are essential in managing the AOC in East Asia"
Keywords:		East Asia genetic divergence pheromone taxonomic identification tea tortrix;
Notes:		"PublisherTsai, Cheng-Lung Shih, Li-Cheng Yeh, Wen-Bin Byun, Bong-Kyu Jinbo, Utsugi Ning, Fang-Yu Sung, I-Hsin eng Bureau of Animal and Plant Health Inspection and Quarantine/ Council of Agriculture/ 107AS-8.4.6-BQ-B2, 108AS-8.4.6-BQ-B2, and 109AS-8.4.5-BQ-B2/Executive Yuan, Taiwan/ England 2023/08/06 J Econ Entomol. 2023 Aug 6:toad155. doi: 10.1093/jee/toad155"