Combined Trojan Y Chromosome Strategy and Sterile Insect Technique to Eliminate Mosquitoes: Modelling and Analysis

Sterile insect technique has been successfully applied in the control of agricultural pests; however, it has a limited ability to control mosquitoes. A promising alternative approach is the Trojan Y Chromosome strategy, which works by manipulating the sex ratio of a population through the introducti...

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Published in:Mathematical problems in engineering 2022, Vol.2022, p.1-10
Main Authors: Lyu, Jingjing, Gu, Musong, Wang, Sheng, Cheng, Kun
Format: Article
Language:English
Subjects:
Chromosomes
Dengue fever
Equilibrium
Females
Insects
Investigations
Males
Mosquitoes
Optimal control
Ordinary differential equations
Pesticides
Pests
Population
Radiation
Sex
Strategy
Tropical diseases
Viruses
Y chromosomes
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Gu, Musong
Wang, Sheng
Cheng, Kun
description Sterile insect technique has been successfully applied in the control of agricultural pests; however, it has a limited ability to control mosquitoes. A promising alternative approach is the Trojan Y Chromosome strategy, which works by manipulating the sex ratio of a population through the introduction of YY supermales that guarantee male offspring. To take the advantages of both approaches, a combined Trojan Y chromosome strategy and sterile insect technique (TYC-SIT) strategy considering intraspecies competition is modeled. The pure TYC method is compared with the pure SIT method by cancelling one-state variable. The dynamical analysis leads to results on both local and global stabilities of this combined TYC-SIT model. Optimal control analysis is also implemented to investigate the optimal mechanisms for extinction of mosquitoes. In particular, the numerical results affirm that the combined TYC-SIT enables near elimination of mosquitoes and works better than the pure TYC or pure SIT method. These conclusions have great significance for species controls with an XX-XY sex determinism system or ZZ-ZW system.
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subjects Chromosomes
Dengue fever
Equilibrium
Females
Insects
Investigations
Males
Mosquitoes
Optimal control
Ordinary differential equations
Pesticides
Pests
Population
Radiation
Sex
Strategy
Tropical diseases
Viruses
Y chromosomes
title Combined Trojan Y Chromosome Strategy and Sterile Insect Technique to Eliminate Mosquitoes: Modelling and Analysis
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