EXPERIMENTAL EVOLUTION OF ACCELERATED DEVELOPMENT IN <i>DROSOPHILA</i>. 1. DEVELOPMENTAL SPEED AND LARVAL SURVIVAL

Chippindale, Adam K.; Alipaz, Julie A.; Chen, Hsiao-Wei; Rose, Michael R.

doi:10.1142/9789812567222_0032

Cited by 54 publications

(104 citation statements)

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“…The general ANOVA revealed that differences between sexes were significant ( Table 2); females developed faster than males as it is usually observed in Drosophila (e.g., Chippindale et al, 1997;Cortese et al, 2002). Similarly, D. buzzatii had a shorter DT than D. koepferae , irrespective of the rearing medium.…”

Section: Resultsmentioning

confidence: 72%

Host‐related life history traits in interspecific hybrids of cactophilicDrosophila

Soto¹,

Soto

Carreira

et al. 2007

Entomologia Exp Applicata

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In the genus Drosophila (Diptera: Drosophilidae), interspecific hybridization is a rare phenomenon. However, recent evidence suggests a certain degree of introgression between the cactophilic siblings Drosophila buzzatii Patterson & Wheeler and Drosophila koepferae Fontdevila & Wasserman. In this article, we analyzed larval viability and developmental time of hybrids between males of D. buzzatii and females of D. koepferae , raised in media prepared with fermenting tissues of natural host plants that these species utilize in nature as breeding sites. In all cases, developmental time and larval viability in hybrids was not significantly different from parental lines and, depending on the cross, hybrids developed faster than both parental species or than the slowest species. When data of wing length were included in a discriminant function analysis, we observed that both species can be clearly differentiated, while hybrids fell in two categories, one intermediate between parental species and the other consisting of extreme phenotypes. Thus, our results point out that hybrid fitness, as measured by developmental time and viability, is not lower than in the parental species.

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Section: Resultsmentioning

confidence: 72%

Host‐related life history traits in interspecific hybrids of cactophilicDrosophila

Soto¹,

Soto

Carreira

et al. 2007

Entomologia Exp Applicata

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“…S lines show a higher viability than L at high density ( Fig. Selection experiments in D. melanogaster have also demonstrated a significant component of additive genetic variance for developmental time and size-related traits (Hillesheim and Stearns 1991;Partridge and Fowler 1993;Zwaan et al 1995;Nunney 1996;Chippindale et al 1997). 3; Tukey comparison: P ϭ 0.08).…”

Section: Resultsmentioning

confidence: 92%

“…Differences in larval survival between S and L lines were largely dependent on density, illustrating how tradeoffs may appear and disappear because of genotype-by-environment interactions Rose et al 1996;Norry and Loeschcke 2002). In contrast, a reduction of larval viability was reported in lines selected for fast development reared at low larval density (Chippindale et al 1997). Under high larval density there is increased pre-adult selection against genetically large and slow developing individuals because of their low viability, which is counterbalanced by their increased adult fitness (Santos et al 1994;Roff 1997;Partridge and French 1996).…”

Section: Genotype-by-environment Interaction In the Trade-offmentioning

confidence: 98%

Direct and Correlated Responses to Artificial Selection on Developmental Time and Wing Length in Drosophila Buzzatii

Cortese

Norry

Piccinali

et al. 2002

Evol

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Abstract.— Developmental time and body size are two positively correlated traits closely related to fitness in many organisms including Drosophila. Previous work suggested that these two traits are involved in a trade‐off that may result from a negative genetic correlation between their effects on pre‐adult and adult fitness. Here, we examine the evolution of developmental time and body size (indexed by wing length) under artificial selection applied to one or both traits in replicated D. buzzatii populations. Directional changes in both developmental time and wing length indicate the presence of substantial additive genetic variance for both traits. The strongest response to selection for fast development was found in lines selected simultaneously to reduce both developmental time and wing length, probably as an expected consequence of a synergistic effect of indirect selection. When selection was applied in the direction opposite to the putative genetic correlation, that is, large wing length but fast development, no responses were observed for developmental time. Lines selected to reduce both wing length and developmental time diverged slightly faster from the control than lines selected to increase wing length and reduce developmental time. However, wing length did not diverge from the control in lines selected only for fast development. These results suggest a complex genetic basis of the correlation between developmental time and wing length, but are generally consistent with the hypothesis that both traits are related in a trade‐off. However, we found that this trade‐off may disappear under uncrowded conditions, with fast‐developing lines exhibiting a higher pre‐adult viability than other lines when tested at high larval density.

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“…However, within the developmental pathway, there are likely physiological costs associated with faster development that do not allow for the eclosion of healthy adults (Chippindale et al . ). The strain by temperature interaction results from a single point at 24 °C, which the authors feel is an artefact of the experiment and is not an actual increase in developmental time.…”

Section: Discussionmentioning

confidence: 97%

Optimal temperature range of a plastic species,Drosophila simulans

Austin

Moehring

2013

Journal of Animal Ecology

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Summary1. When a species experiences a new climate, it can adapt in two main ways: become genetically adapted to the new temperature, or adopt a plastic approach that allows it to survive at a range of temperatures. 2. The constraint on fitness for genetically adapted populations that are exposed to a new temperature has been well studied, but the range of optimal temperatures and their effect on fitness has never been examined across the worldwide distribution of a plastic species. 3. Here, we determined the optimum temperature range of 11 populations of the phenotypically plastic species Drosophila simulans. We measured the influence of temperature on eggs, larvae and adults at six temperatures that span the natural range the flies experience during their primary breeding season. 4. We found no correlation between optimum temperature and native temperature, an effect that is not likely due to laboratory maintenance, suggesting that the species has not locally adapted to temperature. We also found that this species had equal survival and reproductive success at most of the temperatures and life stages that we tested, regardless of the native temperature where the flies originated. 5. Thus, this genetically plastic species has an optimum fitness at a surprisingly wide range of temperatures, and is the first example of a cosmopolitan species exhibiting this large amount of plasticity across its sampling distribution.

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EXPERIMENTAL EVOLUTION OF ACCELERATED DEVELOPMENT IN DROSOPHILA. 1. DEVELOPMENTAL SPEED AND LARVAL SURVIVAL

Cited by 54 publications

References 0 publications

Host‐related life history traits in interspecific hybrids of cactophilicDrosophila

Host‐related life history traits in interspecific hybrids of cactophilicDrosophila

Direct and Correlated Responses to Artificial Selection on Developmental Time and Wing Length in Drosophila Buzzatii

Optimal temperature range of a plastic species,Drosophila simulans

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