Genetic consequences of domestication and refreshment on colonies of the South American fruit fly.

IF 2.9 1区 农林科学 Q1 ENTOMOLOGY Insect Science Pub Date : 2025-03-13 DOI:10.1111/1744-7917.70007
Daniel F Paulo, Rosangela A Rodrigues, David Haymer, Adalecio Kovaleski, Carlos Cáceres, Thiago Mastrangelo
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引用次数: 0

Abstract

For almost a decade, natural populations of the South American fruit fly have been targeted for control through Sterile Insect Technique projects. To ensure a sustainable supply of competitive sterile flies for this approach, it is essential to understand the effects of domestication when strains of this pest are initially brought into the laboratory to establish colonies as well as the changes occurring after multiple generations of adaptation to conditions used for mass rearing. Using one colony established from a wild population of the Brazil-1 morphotype (WIL) and two from laboratory colonies in Brazil known as the Piracicaba (PL) and Vacaria (VL) strains, this study evaluated genetic diversity in samples from 10 generations after domestication and maintenance under semimass rearing conditions. Another aim of this study was to analyze changes in the genetic makeup of the colonies of the two laboratory strains after refreshment. Eight microsatellite markers were used for the genetic analyses. Results indicated a moderate but significant amount of genetic differentiation between the WIL population and the two laboratory strains. Results also showed that levels of genetic diversity in both the VL and PL strains were maintained at similar levels over a period of more than two years of rearing. Additionally, results suggest that successful creation of admixture via refreshment is more likely to be beneficial in relatively short-term domesticated colonies, and that performing refreshment approximately every six to eight generations could be beneficial to maintain the genetic diversity of A. fraterculus colonies under laboratory mass rearing conditions.

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来源期刊
Insect Science
Insect Science 生物-昆虫学
CiteScore
7.80
自引率
5.00%
发文量
1379
审稿时长
6.0 months
期刊介绍: Insect Science is an English-language journal, which publishes original research articles dealing with all fields of research in into insects and other terrestrial arthropods. Papers in any of the following fields will be considered: ecology, behavior, biogeography, physiology, biochemistry, sociobiology, phylogeny, pest management, and exotic incursions. The emphasis of the journal is on the adaptation and evolutionary biology of insects from the molecular to the ecosystem level. Reviews, mini reviews and letters to the editor, book reviews, and information about academic activities of the society are also published.
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