Genetic changes in a Korean population of Drosophila melanogaster.

Choo, Jong Kil; Lee, Teak Jun

doi:10.1266/jjg.61.337

Cited by 8 publications

(6 citation statements)

References 9 publications

(8 reference statements)

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“…Remarkably, a phase of high mutability, which could be due to P element transpositions, was observed in Russian populations in 1973 (Golubovski & Belyaeva, 1985). Similarly, Mukai et al (1985) and Choo and Lee (1986) have analyzed the temporal variation of the detrimental load per chromosome in a Japanese population and a Korean population respectively. These results suggest that some mutators, such as the P elements, may have invaded these populations at the end of the 1960s.…”

Section: Temporal and Geographical Distributions Of P Elementsmentioning

confidence: 99%

DrosophilaP element: Transposition, regulation and evolution

Coen

Lemaître

Delattre³

et al. 1994

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Section: Temporal and Geographical Distributions Of P Elementsmentioning

confidence: 99%

DrosophilaP element: Transposition, regulation and evolution

Coen

Lemaître

Delattre³

et al. 1994

Genetica

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“…Drosophila melanogaster coincide with the invasion of the P element Yukuhiro & Mukai, 1986;Choo & Lee, 1986).…”

Section: Grh 52mentioning

confidence: 99%

The fitness consequences ofPelement insertion inDrosophila melanogaster

et al. 1988

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In this study we estimate the frequency at which .P-element insertion events, as identified by in situ hybridization, generate lethal and mild viability mutations. The frequency of lethal mutations generated per insertion event was 0004. Viability dropped an average of 1 % per insertion event.Our results indicate that it is deletions and rearrangements resulting from the mobilization of P elements already in place and not the insertions per se that cause the drastic effects on viability and fitness observed in most studies of P-M dysgenesis-derived mutations. Elements of five other families (/, copia, 412, B104, and gypsy) were not mobilized in these crosses. Finally, we contrast the density of P elements on the X chromosome with the density on the four autosomal arms in a collection of thirty genomes from an African population. The relative number of P elements on the X chromosome is too high to be explained by either a hemizygous selection or a neutrality model. The possible reasons for the failure to detect selection are discussed.

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“…Or it may be more ancient, but must have taken place after the divergence of the sibling species Drosophila melanogaster and D simulans, approximately one million years ago (Engels, 1989) (Kidwell, 1983;Anxolabdh6re et al, 1988). On the other hand, biogeographic and genetic data suggests that Drosophila melanogaster colonized the American continent only a few centuries ago, going from tropical Africa to tropical America (David and Capy, 1988 (1985) and Choo and Lee (1986) All presently existing natural populations of D melanogaster have probably been invaded by P elements. Clear quantitative and qualitative differences in P element distribution between geographical regions can be observed, as a result of genetic drift, founder effects, migration, natural selection and the development of a mechanism regulating P element transposition.…”

Section: P-m Status Of Chinese Populationsmentioning

confidence: 99%