NDLI: Temporal and Spatial Allozyme Variation in the South American Cactophilic Drosophila antonietae (Diptera; Drosophilidae)

Content Provider	Springer Nature Link
Author	Mateus, R. P. Sene, F. M.
Copyright Year	2003
Abstract	Drosophila antonietae is an endemic South American cactophilic species that uses Cereus hildmaniannus rotting cladodes as breeding sites. We assessed temporal and spatial intrapopulational allozyme variation of two natural populations. Our results suggest that environmental variation (rain precipitation) is probably influencing allozyme temporal variation. Moreover, it seems that D. antonietae does not have intrapopulation structure and has N ev (variance effective size) ≅ 83 and N ec (number of adult flies that colonize each rotting cladode) = 21. The deficiency of heterozygotes found must be due to null alleles, a temporal Wahlund effect, or selection against heterozygotes. Assortative mating and inbreeding are discarded. This is the first report on allozyme variation in D. antonietae. It gives some insight on intrapopulational genetics through space and time for this species. This is important to understand its general genetic variability and will be essential to future works on the natural history and evolution of this species.
Starting Page	219
Ending Page	233
Page Count	15
File Format	PDF
ISSN	00062928
Journal	Biochemical Genetics
Volume Number	41
Issue Number	7-8
e-ISSN	15734927
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2003-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Human Genetics Medical Microbiology Biochemistry Zoology
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine Biochemistry Molecular Biology Ecology, Evolution, Behavior and Systematics

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