Drosophila simulans
Mitochondrial Genotype Affects Fitness in Drosophila simulans
... Drosophila simulans is known to harbor three distinct mitochondrial DNA (mtDNA) haplotype groups (siI, -II, and -III) with nearly 3.0% interhaplotypic divergence but ⬍0.06% intrahaplotypic diversity. With ...
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Postzygotic isolation in Drosophila simulans and D. mauritiana
... When members of two species mate, the resultant offspring (if any result) often are not as fit as the parental species, due to hybrid dysfunction. Hybrid dysfunction, a source of post-zygotic isolation, has been a ...
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Testing Models of Selection and Demography in Drosophila simulans
... We analyze patterns of nucleotide variability at 15 X-linked loci and 14 autosomal loci from a North American population of Drosophila simulans. We show that there is significantly more linkage ...
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Unidirectional incompatibility in Drosophila simulans: inheritance, geographic variation and fitness effects.
... In California, Drosophila simulans females from some populations (type W) produce relatively few adult progeny when crossed to males from some other populations (type R),[r] ...
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ESTIMATION OF GENETIC VARIABILITY IN NATURAL POPULATIONS OF DROSOPHILA SIMULANS BY TWO-DIMENSIONAL AND STARCH GEL ELECTROPHORESIS
... Table 1 presents data from our survey of 24 albzyme loci for genetic variation in approximately 100 isofemale lines of four natural populations of Drosophila simulans from Japan [r] ...
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Stress induced plastic responses in Drosophila simulans following exposure to combinations of temperature and humidity levels
... adult Drosophila simulans after short- term exposures to different temperatures (35, 31 and 18°C) in combination with high and low relative humidity ...
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The Population Genetics of the Origin and Divergence of the Drosophila simulans Complex Species
... of Drosophila simulans and close relatives ...D. simulans and ...the simulans/mauritiana divergence and the simulans/sechellia ...
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Dynamics of R1 and R2 Elements in the rDNA Locus of Drosophila simulans
... The mobile elements R1 and R2 insert specifically into the rRNA gene locus (rDNA locus) of arthropods, a locus known to undergo concerted evolution, the recombinational processes that preserve the sequence homogeneity of ...
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Reduced Variation in Drosophila simulans Mitochondrial DNA
... We investigated the evolutionary dynamics of infection of a Drosophila simulans population by a mater- nally inherited insect bacterial parasite, Wolbachia, by analyzing nucleotid[r] ...
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Sequence analysis of active mariner elements in natural populations of Drosophila simulans.
... somatic excision of a Drosophila transposon. DAVID, 1990 Active mariner transposable elements are wide- spread in natural populations of Drosophila simulans. 1991 Insertion [r] ...
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Genomic Effects of Nucleotide Substitutions in Drosophila simulans
... Selective fixation of beneficial mutations reduces levels of linked, neutral variation. The magnitude of this “hitchhiking effect” is determined by the strength of selection and the recombination rate between selected ...
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tirant, a Newly Discovered Active Endogenous Retrovirus in Drosophila simulans
... in Drosophila simulans using a collection of strains with variable numbers of genomic insertions (7), and we demonstrated that this family was able to produce Env proteins in the ovaries of the ...
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Characterization of Active R2 Retrotransposition in the rDNA Locus of Drosophila simulans
... The rRNA gene (rDNA) loci of all arthropod lineages contain non-LTR retrotransposable elements that have evolved to specifically insert into the 28S rRNA genes. Extensive in vitro experiments have been conducted to ...
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Patterns of DNA Sequence Variation Suggest the Recent Action of Positive Selection in the janus-ocnus Region of Drosophila simulans
... paralogous Drosophila simulans genes, janusA ( janA), janusB (janB), and ocnus (ocn), were surveyed by DNA ...D. simulans revealed strong linkage disequilibrium over the janA-janB region and ...
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The genetic basis of Haldane's rule and the nature of asymmetric hybrid male sterility among Drosophila simulans, Drosophila mauritiana and Drosophila sechellia.
... COYNE (1985) examined the X-autosome imbalance and the X-Y interaction hypothesis by using three closely related species Drosophila simulans, Drosophila mauritiana and [r] ...
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A combined classical genetic and high resolution two-dimensional electrophoretic approach to the assessment of the number of genes affecting hybrid male sterility in Drosophila simulans and Drosophila sechellia.
... We have attempted to estimate the number of genes involved in postzygotic reproductive isolation between two closely related species, Drosophila simulans and Drosophila sechell[r] ...
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Quantitative Trait Loci for Sexual Isolation Between Drosophila simulans and D. mauritiana
... species Drosophila simulans and ...D. simulans males, three QTL affecting D. simulans male traits against which ...D. simulans females ...
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GENETIC STUDIES ON DROSOPHILA SIMULANS. III. AUTOSOMAL GENES. GENERAL DISCUSSION
... Four simulans males with a plum gene in one second chromosome and an intersex gene in the other were mated to four yellow scarlet melano- gaster females!. This resu[r] ...
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Nucleotide Variation and Recombination Along the Fourth Chromosome in Drosophila simulans
... pro- simulans, assuming no gene conversion, using the method cedure; with a fixed mean tract length, for a given set of Hudson ...D. simulans is 74 times higher, assuming that effective fourth chromosome, ...
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THE EXPRESSION OF ALLELES AT THE CUBITUS INTERRUPTUS LOCUS IN HYBRIDS BETWEEN DROSOPHILA MELANOGASTER AND DROSOPHILA SIMULANS
... I n testing for a n effect of different stocks upon the expression of cubitus interruptus, the results show a statistically significant difference, as pre- viously[r] ...
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