Evolutionary aspects of photoperiodism in Drosophila

Kimura, Masahito T.

doi:10.1016/b978-044450608-5/50042-8

Cited by 2 publications

(3 citation statements)

References 9 publications

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“…In addition, no difference was observed in cold tolerance between the Sapporo and Tokyo strains of D. auraria and D. suzukii. Also in other drosophilid species including the present experimental species (D. takahashii, D. lutescens and D. rufa), geographic variation in cold tolerance has been reported to be negligible or small (Kimura 1982(Kimura , 1988(Kimura , 2001Kimura et al 1994;Coyne et al 1983;Hoffmann and Parsons 1991;Hoffmann et al 2003;David et al 2003). Thus, evolutionary capacity of a drosophilid species to increase cold tolerance seems to be limited.…”

Section: Cold Tolerancementioning

confidence: 70%

“…If they have such capacities, they would become more coldhardy and expand beyond the boundary. In a number of insects including several species of Drosophila, no or a very low level of geographic variation has been observed in cold tolerance (Danilevskii 1965;Eger et al 1982;Coyne et al 1983;Kimura 1988Kimura , 2001Kimura et al 1994), suggesting that they have limited capacities to increase their cold tolerance. However, a number of studies (reviewed by Hoffmann et al 2003;David et al 2003) observed in some other species of Drosophila that cold tolerance increases with the latitude of source population.…”

Section: Introductionmentioning

confidence: 98%

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Cold and heat tolerance of drosophilid flies with reference to their latitudinal distributions

2004

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The relation between thermal tolerance and latitudinal distribution was studied with 30 drosophilid species collected from the cool-temperate region (Sapporo), the warm-temperate region (Tokyo and Kyoto) and the subtropical region (Iriomote island) in Japan. In addition, intraspecific variation was examined for five species collected from two localities. The subtropical strains of Scaptodrosophila coracina, Drosophila bizonata and D. daruma were less tolerant to cold than their temperate strains. However, the difference of cold tolerance between these two geographic strains was much smaller than the difference between the species restricted to the subtropical region and those occurring in the temperate region. In D. auraria and D. suzukii, no difference was observed in thermal tolerance between their cool- and warm-temperate strains. Thus, geographic variation in thermal tolerance within species was low or negligible. Interspecific comparisons by phylogenetic independent contrasts revealed that species which had the northern boundaries of their distributions at higher latitudes were generally more tolerant to cold than those which had their boundaries at lower latitudes. However, the data for some species did not agree with this trend. The use of man-protected warm places for overwintering, competition or predation would also affect their distributions. It also appeared that species which had their southern boundaries at higher latitudes were generally more cold-tolerant. The acquisition of cold tolerance may lower a fly's capacity to compete, survive or reproduce in warmer climates. On the other hand, no relation was observed between heat tolerance and latitudinal distribution. Heat tolerance was higher in species inhabiting openlands or the forest canopy than in those inhabiting the forest understorey.

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Section: Cold Tolerancementioning

confidence: 70%

Section: Introductionmentioning

confidence: 98%

Cold and heat tolerance of drosophilid flies with reference to their latitudinal distributions

2004

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“…These associations persist once correlations between climatic distributions and levels of stress resistance are corrected for phylogenetic relatedness (Kimura, 2004). Patterns of diapause of Drosophila species may also closely match the levels of climatic extremes that species are likely to experience in nature (Kimura, 2001).…”

Section: Limits Above the Population Levelmentioning

confidence: 99%

Physiological climatic limits inDrosophila: patterns and implications

Hoffmann

2010

Journal of Experimental Biology

330

354

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SummaryPhysiological limits determine susceptibility to environmental changes, and can be assessed at the individual, population or species/lineage levels. Here I discuss these levels in Drosophila, and consider implications for determining species susceptibility to climate change. Limits at the individual level in Drosophila depend on experimental technique and on the context in which traits are evaluated. At the population level, evidence from selection experiments particularly involving Drosophila melanogaster indicate high levels of heritable variation and evolvability for coping with thermal stresses and aridity. An exception is resistance to high temperatures, which reaches a plateau in selection experiments and has a low heritability/evolvability when temperatures are ramped up to a stressful level. In tropical Drosophila species, populations are limited in their ability to evolve increased desiccation and cold resistance. Population limits can arise from trait and gene interactions but results from different laboratory studies are inconsistent and likely to underestimate the strength of interactions under field conditions. Species and lineage comparisons suggest phylogenetic conservatism for resistance to thermal extremes and other stresses. Plastic responses set individual limits but appear to evolve slowly in Drosophila. There is more species-level variation in lower thermal limits and desiccation resistance compared with upper limits, which might reflect different selection pressures and/or low evolvability. When extremes are considered, tropical Drosophila species do not appear more threatened than temperate species by higher temperatures associated with global warming, contrary to recent conjectures. However, species from the humid tropics may be threatened if they cannot adapt genetically to drier conditions.

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Evolutionary aspects of photoperiodism in Drosophila

Cited by 2 publications

References 9 publications

Cold and heat tolerance of drosophilid flies with reference to their latitudinal distributions

Cold and heat tolerance of drosophilid flies with reference to their latitudinal distributions

Physiological climatic limits inDrosophila: patterns and implications

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