Fourth Report on Natural Selection for the Origin of Reproductive Isolation

@article{Ehrman1983FourthRO,
  title={Fourth Report on Natural Selection for the Origin of Reproductive Isolation},
  author={Lee Ehrman},
  journal={The American Naturalist},
  year={1983},
  volume={121},
  pages={290 - 293}
}
  • L. Ehrman
  • Published 1 February 1983
  • Biology
  • The American Naturalist
This is my fourth report on natural selection for reproductive isolation. For the sake of brevity see Ehrman (1979) for the third report and for details concerning the origin and maintenance of compound-chromosome lines of Drosophila melanogaster. Flies carrying these compound chromosomes have been maintained separately and together in competition with either wild-type strains or with each other. To the older experiments, I have now added a unique strain of this same species which bears both… 

Components of fitness in a compound chromosome strain of Drosophila melanogaster

The relative net fitness of a compound chromosome strain of Drosophila melanogaster was about 0.05, compared with the chromosomally normal strain from which it was derived, apparently due to assortative mating, in which normal females discriminated strongly against compound males.

SELECTION FOR SEXUAL ISOLATION BETWEEN GEOGRAPHIC FORMS OF DROSOPHILA MOJAVENSIS. II. EFFECTS OF SELECTION OF MATING PREFERENCE AND PROPENSITY

  • H. R. Koepfer
  • Biology
    Evolution; international journal of organic evolution
  • 1987
The study described here begins a "behavioral dissection" of the post-selection isolation between peninsular males and mainland females to elucidate the effects of the selective regimen on mating preference and propensity, or sex drive, and to evaluate the relative importance of these behavioral components for mate choice in the selected and control lines.

Sexual Isolation Between Sympatric and Allopatric Populations of Drosophila pseudoobscura and D. persimilis*

There was a wide variation in sexual isolation between the two species in the four localities the authors studied, and there were no meaningful differences between the isolation indices in sympatric and allopatric strains of the species.

Developmental isolation and subsequent adult behavior ofDrosophila paulistorum. III. Alternative rearing

Three rearing methods were used to examine the effects of previous exposure to heterosemispecifics on reproductive isolation among the various semispecies to study the development of adult discriminatory behavior.

SELECTION FOR SEXUAL ISOLATION BETWEEN GEOGRAPHIC FORMS OF DROSOPHILA MOJAVENSIS. I. INTERACTIONS BETWEEN THE SELECTED FORMS

  • H. R. Koepfer
  • Biology
    Evolution; international journal of organic evolution
  • 1987
Drosophila mojavensis comprises three geographic forms occurring in the United States, the Baja California peninsula, and mainland Mexico, and response to selection was highly asymmetrical in that isolation was very high between selected peninsular males and mainland females, but nonexistent between selected mainland males andPeninsular females.

On the relationship between species concepts and speciation processes

It is suggested that biologists hold differing (sometimes implicit) views of this relationship, that some ambiguity remains concerning the nature of the relationship, and that species concepts which are not linked to particular theories of speciation will be most fruitful.

References

SHOWING 1-6 OF 6 REFERENCES

Natural Selection for the Origin of Reproductive Isolation

It is shown that, by means of selection over a period of some 70 generations, ethological isolation can be constructed where none had existed previous to initiation of selection for it.

Meiotic behavior of compound autosomes in females of Drosophila melanogaster: interchromosomal effects and the source of spontaneous nonsegregation.

Crosses between males and females whose X chromosomes, as well as compound autosomes, are differentially marked reveal a highly significant positive correlation between the frequency of compound-autosome nonsegregation and thefrequency of X-chromosome nondisjunction.

The Genetics and Biology of Drosophila

This is the first attempt since 1925 to publish a comprehensive account of the biology and genetics of Drosophila and it aims to collate the dauntingly large literature on the subject and to make more accessible the private language ot the Dosophilist.

The entire compound autosomes of Drosophila melanogaster.

Three new unusual compound chromosomes have been synthesized in Drosophila melanogaster and are recovered in progeny with frequencies lower than expectation partly because of zygote mortality associated with these chromosomes, and partlyBecause of a failure of spermiogenesis.

Still More on Natural Selection for the Origin of Reproductive Isolation

  • L. Ehrman
  • Biology, Environmental Science
    The American Naturalist
  • 1979
Odum, E. P. 1969. The strategy of ecosystem development. Science 164: 262-270. . 1977. The emergence of ecology as a new integrative discipline. Science 195:1289-1293. Simberloff, D. S., and E. 0.

competently assisted with the 1979 tests. I am very grateful to James Crow, University of Wisconsin, for sending me the C-strain stock. LITERATURE CITED