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Article

Genetic and Morphologic Variation in a Potential Mosquito Biocontrol Agent, Hydrochara Affinis (Coleoptera: Hydrophilidae)

1
Korean Entomological Institute, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
2
Department of Environmental Science and Ecological Engineering, Graduate School, Korea University, Seoul 02841, Korea
3
Institute of Life Science and Natural Resources, Korea University, Seoul 02841, Korea
*
Author to whom correspondence should be addressed.
Present Address: Environmental Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
Sustainability 2020, 12(13), 5481; https://0-doi-org.brum.beds.ac.uk/10.3390/su12135481
Received: 31 May 2020 / Revised: 1 July 2020 / Accepted: 2 July 2020 / Published: 7 July 2020
(This article belongs to the Special Issue Harmful Organisms and their Management for Sustainable Environment)
Hydrochara affinis (Coleoptera: Hydrophilidae), a water scavenger beetle, was recently identified as a natural and effective agent for biological mosquito control; it was reported to exhibit high rates of mosquito larvae predation. However, maintaining the quality (i.e., natural ecological attributes, such as genetic variation) of laboratory-reared populations is essential for ensuring the long-term success of biological control programs. Accordingly, here, we aimed to use mitochondrial Cytochrome c oxidase subunit I (COI) sequences to document the genetic diversity, population structure, and phylogenetic position of natural and lab-reared H. affinis populations in South Korea and use geometric morphometric analysis to investigate the populations’ morphological divergence. The natural H. affinis populations possessed high genetic diversity and numerous COI haplotypes, suggesting that these populations were healthy and could be directly applied to mosquito habitats without alterations to their natural genetic attributes. The lab-reared populations also possessed high genetic diversity and, thus, the potential for high adaptive capacity to new environments. Although no distinct population genetic structures were observed, quantitative variation was observed in the body shape of both the natural and lab-reared populations. The high levels of genetic and morphologic variation observed in the H. affinis populations examined here indicate the species’ favorable conservation status, genetic diversity, adaptive capacity, and, thus, “suitability” for field application as an effective mosquito control agent. View Full-Text
Keywords: genetic diversity; water scavenger beetle; mosquito larvae; predator; natural enemy; COI; geometric morphometrics genetic diversity; water scavenger beetle; mosquito larvae; predator; natural enemy; COI; geometric morphometrics
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MDPI and ACS Style

Kang, J.H.; Lim, C.; Park, S.H.; Kim, W.G.; Sareein, N.; Bae, Y.J. Genetic and Morphologic Variation in a Potential Mosquito Biocontrol Agent, Hydrochara Affinis (Coleoptera: Hydrophilidae). Sustainability 2020, 12, 5481. https://0-doi-org.brum.beds.ac.uk/10.3390/su12135481

AMA Style

Kang JH, Lim C, Park SH, Kim WG, Sareein N, Bae YJ. Genetic and Morphologic Variation in a Potential Mosquito Biocontrol Agent, Hydrochara Affinis (Coleoptera: Hydrophilidae). Sustainability. 2020; 12(13):5481. https://0-doi-org.brum.beds.ac.uk/10.3390/su12135481

Chicago/Turabian Style

Kang, Ji Hyoun, Changseob Lim, Sung Hwan Park, Wang Gyu Kim, Nattawut Sareein, and Yeon Jae Bae. 2020. "Genetic and Morphologic Variation in a Potential Mosquito Biocontrol Agent, Hydrochara Affinis (Coleoptera: Hydrophilidae)" Sustainability 12, no. 13: 5481. https://0-doi-org.brum.beds.ac.uk/10.3390/su12135481

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