NDLI: Allozyme variability in an invasive drosophilid, Zaprionus indianus (Diptera: Drosophilidae): comparison of a recently introduced Brazilian population with Old World populations

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Allozyme variability in an invasive drosophilid, Zaprionus indianus (Diptera: Drosophilidae): comparison of a recently introduced Brazilian population with Old World populations

Content Provider	Semantic Scholar
Author	Machado, Taissa De Mattos Solé-Cava, Antonio M. David, Jean R. Bitner-Mathé, Blanche Christine
Copyright Year	2005
Abstract	Abstract Colonizing species often go through genetic bottlenecks when new territories are invaded. The South American continent has been recently colonized by a generalist African drosophilid, Zaprionus indianus, which has become an agricultural pest in Brazil in the last five years. In this paper we used allozyme electrophoresis to estimate levels of genetic differentiation of Z. indianus collected from sites 4 300 km apart in Brazil. We also compared the level of polymorphism of the Brazilian populations with that found in laboratory strains from Africa and Asia, to verify if a significant decrease in gene variability has taken place during the invasion process. The populations were polymorphic for three out of the 11 loci investigated. Genetic distances and FST indices among Brazilian populations were small and generally non significant, suggesting a colonization from one single propagule followed by a rapid demographic expansion. Ancestral and old populations from Africa and Asia were slightly more he...
Starting Page	7
Ending Page	13
Page Count	7
File Format	PDF HTM / HTML
DOI	10.1080/00379271.2005.10697438
Alternate Webpage(s)	http://www.intranet.biologia.ufrj.br/lbdm/pdfs/Mattos-Machadoetal2005Zaprionus.pdf
Alternate Webpage(s)	http://zoologie.umons.ac.be/asef/pdf/2005_41_01/compact/Mattos_Machado_et_al_ASEF_2005_41_1_7_13_compact.pdf
Alternate Webpage(s)	https://doi.org/10.1080/00379271.2005.10697438
Volume Number	41
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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