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6. Pathogen Detection and Phylogenetic Analysis of Aethina tumida Murray in South Korea

Author

Yoo Mi-Sun, Truong A-Tai, Choi Yong-Soo, Hong Ki-Jeong, Hwang Tae Jun, Seo Soo Kyoung, Seo Hyun-Ji, Jung Sukchan, Yoon Soon-Seek, and Cho Yun Sang

Subjects
aethina tumida, black queen cell virus, deformed wing virus, phylogenetic analysis, small hive beetle, Zoology, QL1-991
Abstract

The small hive beetle (SHB), Aethina tumida Murray, is a parasite of honey bee colonies and causes the fermentation of honey as well as colony collapse. Outbreaks have been confirmed in Africa, America, Europe as well as Asia, where an outbreak was reported in the Philippines and South Korea in 2014 and 2017, respectively. In South Korea, in September 2016, this honey bee parasite was first identified in apiaries in Miryang, Gyeongnam Province. However, the invasion pathway of SHB has not been identified, and honey bee pathogens harbored by SHB have not been well characterized. Therefore, phylogenetic analysis of SHB with the use of COI gene and detection of fourteen common honey bee pathogens were conducted in this study. The confirmation of the fourteen honey bee pathogens in SHB showed that this beetle carries black queen cell virus and deformed wing virus. Therefore, SHB could have a role in the spread of these viruses. The way of entry of the SHB to South Korea remains undetermined, but the phylogenetic analysis of the COI gene revealed that it was most similar to species found in the USA. There is an urgent need for national-level monitoring and quarantine measures for preventing the spread of SHB infestation in South Korea.

Published
2022
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18. Prevalence and pathogen detection of Varroa and Tropilaelaps mites in Apis mellifera (Hymenoptera, Apidae) apiaries in South Korea.

Author

Truong, A-Tai, Yoo, Mi-Sun, Yun, Bo-Ram, Kang, Jeong Eun, Noh, Jinhyeong, Hwang, Tae Jun, Seo, Soo Kyoung, Yoon, Soon-Seek, and Cho, Yun Sang

Abstract

The honey bee is an important pollinator of wild plants and crops and provides various useful products for humans. Infestations by honey bee mites damage the honey bees' health, decrease their lifespan, and increase their viral susceptibility. In this study, surveys were conducted throughout South Korea in 2019 to investigate the status of honey bee mite infestation. Mite samples were collected for species identification, and estimation of infestation levels from 47 apiaries in 12 regions was conducted. Mite species were identified by morphological characteristics and genetic analysis using cytochrome c oxidase subunit I (COX1). The results showed that 93.6% of the apiaries were infested by honey bee mites, of which 85.1% and 76.6% of the apiaries were infested by Varroa spp. and Tropilaelaps spp., respectively. Furthermore, 68.0% were co-infested by both honey bee mites. Additionally, 82.5% of the apiaries with Varroa spp. showed infestation rate with >3 mites per 100 bees, the infestation level could result in winter losses of honey bee colonies. Species identification revealed that all mites from the apiaries in South Korea were Varroa destructor and Tropilaelaps mercedesae. Importantly, these two mite species were determined to be vectors of one to nine honey bee pathogens in real-time polymerase chain reaction detection. The most prevalent pathogen was the deformed wing virus, followed by the Israeli acute paralysis virus and chronic bee paralysis virus. The results of the surveys are important for estimating the economic losses caused by honey bee mites and establishing a possible strategy for controlling mites and mite-borne transmissible pathogens in South Korea. [ABSTRACT FROM AUTHOR]

Published
2023
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28. Prevalence and pathogen detection of Varroa and Tropilaelaps mites in Apis mellifera(Hymenoptera, Apidae) apiaries in South Korea

Author

Truong, A-Tai, Yoo, Mi-Sun, Yun, Bo-Ram, Kang, Jeong Eun, Noh, Jinhyeong, Hwang, Tae Jun, Seo, Soo Kyoung, Yoon, Soon-Seek, and Cho, Yun Sang

Abstract

AbstractThe honey bee is an important pollinator of wild plants and crops and provides various useful products for humans. Infestations by honey bee mites damage the honey bees’ health, decrease their lifespan, and increase their viral susceptibility. In this study, surveys were conducted throughout South Korea in 2019 to investigate the status of honey bee mite infestation. Mite samples were collected for species identification, and estimation of infestation levels from 47 apiaries in 12 regions was conducted. Mite species were identified by morphological characteristics and genetic analysis using cytochrome c oxidase subunit I (COX1). The results showed that 93.6% of the apiaries were infested by honey bee mites, of which 85.1% and 76.6% of the apiaries were infested by Varroaspp. and Tropilaelapsspp., respectively. Furthermore, 68.0% were co-infested by both honey bee mites. Additionally, 82.5% of the apiaries with Varroaspp. showed infestation rate with >3 mites per 100 bees, the infestation level could result in winter losses of honey bee colonies. Species identification revealed that all mites from the apiaries in South Korea were Varroa destructorand Tropilaelaps mercedesae. Importantly, these two mite species were determined to be vectors of one to nine honey bee pathogens in real-time polymerase chain reaction detection. The most prevalent pathogen was the deformed wing virus, followed by the Israeli acute paralysis virus and chronic bee paralysis virus. The results of the surveys are important for estimating the economic losses caused by honey bee mites and establishing a possible strategy for controlling mites and mite-borne transmissible pathogens in South Korea.

Published
2023
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36. Additional file 1 of Real-time PCR biochip for on-site detection of Coxiella burnetii in ticks

Author

Truong, A.-Tai, Yun, Bo-Ram, Lim, Jiyeon, Min, Subin, Yoo, Mi-Sun, Yoon, Soon-Seek, Yun, Young-Min, Kim, Jong-Taek, and Cho, Yun Sang

Subjects
bacteria, bacterial infections and mycoses
Abstract

Additional file 1: Table S1. Coxiella burnetii sequences detected from tick samples. Figure S1. Comparison of Coxiella burnetii-specific primers to genome of Rickettsiella species. The comparison was performed by aligning the forward and reverse primers of C. burnetii to the genome of R. viridis (A), R. grylli (B), and R. isopodorum (C). Numbers indicate the positions on Rickettsiella genomes that had the highest similarity to the primer sequences. The distance between the forward and reverse primer positions are indicates as base pairs.

Published
2021
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37. Molecular Detection and Phylogeny of Tick-Borne Pathogens in Ticks Collected from Dogs in the Republic of Korea

Author

Truong, A-Tai, primary, Noh, Jinhyeong, additional, Park, Yeojin, additional, Seo, Hyun-Ji, additional, Kim, Keun-Ho, additional, Min, Subin, additional, Lim, Jiyeon, additional, Yoo, Mi-Sun, additional, Kim, Heung-Chul, additional, Klein, Terry A., additional, Lee, Hyunkyoung, additional, Yoon, Soon-Seek, additional, and Cho, Yun Sang, additional

Published
2021
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41. Molecular Detection and Phylogenetic Analysis of Anaplasma and Borrelia Species in Ticks Collected from Migratory Birds at Heuksan, Hong, and Nan Islands, Republic of Korea

Author

Seo, Hyun-Ji, primary, Noh, Jinhyeong, additional, Kim, Heung-Chul, additional, Chong, Sung-Tae, additional, Klein, Terry A., additional, Park, Chang-Uk, additional, Choi, Chang Yong, additional, Kwon, Young-Soo, additional, Kim, Miran, additional, Min, Subin, additional, Park, Yeojin, additional, Yoo, Mi-Sun, additional, and Cho, Yun Sang, additional

Published
2021
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45. Pathogen Detection and Phylogenetic Analysis of Aethina tumidaMurray in South Korea

Author

Yoo, Mi-Sun, Truong, A-Tai, Choi, Yong-Soo, Hong, Ki-Jeong, Hwang, Tae Jun, Seo, Soo Kyoung, Seo, Hyun-Ji, Jung, Sukchan, Yoon, Soon-Seek, and Cho, Yun Sang

Abstract

The small hive beetle (SHB), Aethina tumidaMurray, is a parasite of honey bee colonies and causes the fermentation of honey as well as colony collapse. Outbreaks have been confirmed in Africa, America, Europe as well as Asia, where an outbreak was reported in the Philippines and South Korea in 2014 and 2017, respectively. In South Korea, in September 2016, this honey bee parasite was first identified in apiaries in Miryang, Gyeongnam Province. However, the invasion pathway of SHB has not been identified, and honey bee pathogens harbored by SHB have not been well characterized. Therefore, phylogenetic analysis of SHB with the use of COI gene and detection of fourteen common honey bee pathogens were conducted in this study. The confirmation of the fourteen honey bee pathogens in SHB showed that this beetle carries black queen cell virus and deformed wing virus. Therefore, SHB could have a role in the spread of these viruses. The way of entry of the SHB to South Korea remains undetermined, but the phylogenetic analysis of the COI gene revealed that it was most similar to species found in the USA. There is an urgent need for national-level monitoring and quarantine measures for preventing the spread of SHB infestation in South Korea.

Published
2022
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50. Comparative Genomic Analysis for Genetic Variation in Sacbrood Virus of Apis cerana and Apis mellifera Honeybees From Different Regions of Vietnam

Author

Reddy, Kondreddy Eswar, primary, Thu, Ha Thi, additional, Yoo, Mi Sun, additional, Ramya, Mummadireddy, additional, Reddy, Bheemireddy Anjana, additional, Lien, Nguyen Thi Kim, additional, Trang, Nguyen Thi Phuong, additional, Duong, Bui Thi Thuy, additional, Lee, Hyun-Jeong, additional, Kang, Seung-Won, additional, and Quyen, Dong Van, additional

Published
2017
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