Genetic Dynamics and Dispersion Pattern Changes in Aedes aegypti Populations (Diptera: Culicidae) in Yunnan Province, China, over Three Consecutive Years.
- 1Department of Disinfection and Vector Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China.
- 2State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China.
- 3Center for Disease Control and Prevention in Western Theater Command, Lanzhou 730030, China.
Abstract
Aedes aegypti is the primary vector of mosquito-borne viruses and threatens human health globally. To monitor temporal changes in the population genetics of Ae. aegypti in Yunnan Province, we collected specimens from five sites between 2016 and 2018 and analyzed them at nine microsatellite loci and the mitochondrial cox I gene. Genetic diversity in these populations rose initially and then declined over the study period. The inbreeding coefficient shifted from a heterozygous state toward moderate inbreeding. Ten cox I haplotypes were identified, with haplotypes H06 and H09 prevalent across regions, while other haplotypes were limited to specific regions or years. Clustering analyses demonstrated significant population shifts of Ae. aegypti across the five sampling sites from 2016 to 2018. AMOVA analysis of all Ae. aegypti populations indicated that from 2016 to 2018, the main source of variation was predominantly among individuals, accounting for 76.43%, 65.15%, and 80.36%, respectively. Population dispersion patterns across locations initially increased and then decreased over time. Therefore, continuous monitoring is essential, and particular attention should be paid to intra-provincial spread, especially between port and urban areas.
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BibTeX
@article{gao2026genetic,
title = {{Genetic Dynamics and Dispersion Pattern Changes in Aedes aegypti Populations (Diptera: Culicidae) in Yunnan Province, China, over Three Consecutive Years.}},
author = {Jian Gao and Heng-Duan Zhang and Zhi-Ming Wu and Qing-Ming Shi and Dan Xing and Xiao-Xia Guo and Chun-Xiao Li and Yan-De Dong and Tong-Yan Zhao and Hong-Liang Chu},
journal = {Insects},
year = {2026},
month = oct,
doi = {10.3390/insects17101087},
url = {https://europepmc.org/article/MED/42940995},
note = {CC BY},
}
RIS
TY - JOUR
TI - Genetic Dynamics and Dispersion Pattern Changes in Aedes aegypti Populations (Diptera: Culicidae) in Yunnan Province, China, over Three Consecutive Years.
AU - Jian Gao
AU - Heng-Duan Zhang
AU - Zhi-Ming Wu
AU - Qing-Ming Shi
AU - Dan Xing
AU - Xiao-Xia Guo
AU - Chun-Xiao Li
AU - Yan-De Dong
AU - Tong-Yan Zhao
AU - Hong-Liang Chu
PY - 2026
DA - 2026/10/20
JO - Insects
DO - 10.3390/insects17101087
UR - https://europepmc.org/article/MED/42940995
AB - Aedes aegypti is the primary vector of mosquito-borne viruses and threatens human health globally. To monitor temporal changes in the population genetics of Ae. aegypti in Yunnan Province, we collected specimens from five sites between 2016 and 2018 and analyzed them at nine microsatellite loci and the mitochondrial cox I gene. Genetic diversity in these populations rose initially and then declined over the study period. The inbreeding coefficient shifted from a heterozygous state toward moderate inbreeding. Ten cox I haplotypes were identified, with haplotypes H06 and H09 prevalent across regions, while other haplotypes were limited to specific regions or years. Clustering analyses demonstrated significant population shifts of Ae. aegypti across the five sampling sites from 2016 to 2018. AMOVA analysis of all Ae. aegypti populations indicated that from 2016 to 2018, the main source of variation was predominantly among individuals, accounting for 76.43%, 65.15%, and 80.36%, respectively. Population dispersion patterns across locations initially increased and then decreased over time. Therefore, continuous monitoring is essential, and particular attention should be paid to intra-provincial spread, especially between port and urban areas.
SN - 2075-4450
ER -