Morphological Variation in Natural Populations of Drosophila robusta Sturtevant

Stalker, Harrison D.; Carson, Hampton L.

doi:10.2307/2405325

Cited by 66 publications

(91 citation statements)

References 4 publications

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“…Based on the study of only 3 strains, our data are unsufficient to demonstrate that latitudinal clines exist in natural populations of D. virilis and more numerous studies should be done in this respect. However the analogy between the variations here observed and those previously known in other species such as D. melanogaster David 1979), D. simulans (David and Bocquet 1975), D. subobscura (Misra and Reeve 1964) and D. robusta (Stalker and Carson 1947) strongly suggest that D. virilis populations also follow the rule of an increase of size with latitude.…”

Section: Other Physiological and Morphological Traitssupporting

confidence: 86%

Possible similarities in ethanol tolerance and latitudinal variations between Drosophila virilis and D. melanogaster.

David

Kitagawa

1982

The Japanese journal of genetics

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Ethanol tolerance of D. virilis, measured by the concentration killing 50% of adults (L. C. 50) after two days of treatment is above 10% and only two other Drosophila species are presently known to be more tolerant. D. virilis appears to use some artificial alcoholic resources in beer factories. However, variations of alcohol tolerance do not seem to be so much related to the nature of larval resources but better to latitude of origin. Our data suggest that, for various biometrical traits, genetic latitudinal clines occur in D, virilis as in D. melanogaster and several other Drosophila species.

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Section: Other Physiological and Morphological Traitssupporting

confidence: 86%

Possible similarities in ethanol tolerance and latitudinal variations between Drosophila virilis and D. melanogaster.

David

Kitagawa

1982

The Japanese journal of genetics

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“…The present study did not observe the same monotonic dines that have been previously reported. This is not surprising when one considers the sampling schemes used in other studies where flies were collected: at irregular intervals (Stalker & Carson, 1947;Sokoloff, 1965), from too few locations (Hyytia Ct al., 1985), without regards for longitude or altitude (Stalker & Carson, 1947;Sokoloff, 1965), and at different times of the year (Stalker & Carson, 1947;Sokoloff, 1965;Hyytia et a!., 1985;Watada et a!., 1986). Any or all of these factors could have added variation which would tend to obscure a nonnionotonic trend (Stalker & Carson, 1948, 1949.…”

Section: Clinal Selection On Morphology In Drosophila 577mentioning

confidence: 95%

Molecules versus morphology: the detection of selection acting on morphological characters along a cline in Drosophila melanogaster

Long

Singh

1995

Heredity

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This work examines the nature of north-south clinal variation in morphological characters in Drosophila melanogaster. Isofemale lines were established from flies collected along a transect extending from Winnipeg, Manitoba (Canada) to Tampa Bay, Florida (U.S.A.). Offspring from different lines within each location were then cultured under standardized conditions and used to examine phenotypic variation in seven morphological characters along the dine. In addition, allozyme variation at seven polymorphic loci was examined for the same set of clinal populations. Scutellum length and wing length show the strongest clinal trends. Clinal variation is nonmonotomc, with larger flies in the middle latitudes and smaller flies in the north and south. This result contrasts with other studies which have shown monotonic dines. Patterns of population subdivision were different for the different characters. This implies that there are different selective forces acting on the different morphological characters. Based on a comparison of morphological and molecular population subdivision for adjacent populations it is inferred that natural selection is operating to maintain a high level of population subdivision for wing width and the first principal component between one of the sets of populations. A combined approach using molecules and morphology may provide an alternative to retrospective selection analysis for detecting selection in nature.

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“…Several studies with natural Drosophila populations have shown that wing morphology is a target for natural selection and that the Drosophila wing can be considered as a suitable model for studies on morphological evolution. Clinal studies have extensively reported that wings are generally bigger at lower latitudes and the most common explanation for this pattern is selection due to temperature (Stalker and Carson, 1947;Prevosti, 1955;David et al, 1977;Coyne and Beecham, 1987;Gockel et al, 2001;Hoffmann and Shirriffs, 2002). Genetic variation for wing shape in natural populations and its association with geographical variation have also been described (Bitner-Mathé and Klaczko, 1999a, b;Gilchrist et al, 2000;Hoffmann and Shirriffs, 2002).…”

Section: Introductionmentioning

confidence: 98%

Genetic architecture of wing morphology in Drosophila simulans and an analysis of temperature effects on genetic parameter estimates

Matta

Bitner‐Mathé

2004

Heredity

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The Drosophila wing has been used as a model to investigate the mechanisms responsible for size and shape changes in nature, since such changes might underlie morphological evolution. To improve the understanding of wing morphological variation and the interpretation of genetic parameters estimates, we have established 59 lines from a Drosophila simulans laboratory population through single pair random matings. The offspring of each line were reared at three different temperatures, and the wing morphology of 12 individuals was analyzed by adjusting an ellipse to the wings' contour. Temperature, sex and line significantly affected wing trait variation, which was mainly characterized by longer wings having the second, fourth and fifth longitudinal veins closer together at the wing tip. As for the genetic parameter estimates, while the cross-environment heritability of some traits, such as wing size (SI), decreased with an increasing difference between the temperatures at which parents and offspring were reared, wing shape (SH) heritability did not seem to change. Since we found indications that neither an increase in the phenotypic variation nor the occurrence of genotype-environment interactions could fully explain the low heritabilities of SI estimated by cross-environment regressions, we discuss the importance of other effects for explaining this discrepancy between the SI and SH heritability estimates. In addition, although the genetic matrix was not entirely represented in the phenotypic matrix, several correspondences were identified, suggesting that the observed patterns of wing morphology variation are genetically controlled.

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Morphological Variation in Natural Populations of Drosophila robusta Sturtevant

Cited by 66 publications

References 4 publications

Possible similarities in ethanol tolerance and latitudinal variations between Drosophila virilis and D. melanogaster.

Possible similarities in ethanol tolerance and latitudinal variations between Drosophila virilis and D. melanogaster.

Molecules versus morphology: the detection of selection acting on morphological characters along a cline in Drosophila melanogaster

Genetic architecture of wing morphology in Drosophila simulans and an analysis of temperature effects on genetic parameter estimates

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