Differential flight activity among karyotypes: daily and weather-induced changes in chromosomal inversion polymorphism in natural populations of Drosophila subobscura

Gosteli, M.

doi:10.1007/bf00116553

Cited by 10 publications

(7 citation statements)

References 28 publications

(22 reference statements)

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“…Some selective pressure regarding habitat differences was observed, indicating the presence of different homokaryotypes or heterokaryotypes, depending on ecological factors, such as light, temperature and humidity, and their dynamics. Arrangement frequencies of the morning samples appeared particularly interesting, and were in accordance with similar studies (GOSTELLI 1991). According to SANTOS et al (2004) changes in O chromosome gene arrangement frequencies in D. subobscura, as a response to temperature, likely underlie the correlated changes in wing shape because of gene-inversion linkage disequilibria.…”

Section: Resultssupporting

confidence: 87%

Effect of Microhabitat Variability on Body Size in Drosophila subobscura

Stamenković‐Radak¹,

Rašić²,

Cucković³

et al. 2008

folia biol (krakow)

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STAMENKOVI-RADAK M., G. RASI, M. CUCKOVI, T. SAVI, ANDJELKOVI M. 2008. Effect of microhabitat variability on body size in Drosophila subobscura. Folia biol. (Kraków) 56: 51-56.We assessed the variation in thorax size, wing size and wing loading in populations of Drosophila subobscura from two ecologically different habitats and within each habitat sampled during three periods of the day. The traits analyzed differed between laboratory reared samples and field collected samples. Differences were mainly caused by environmental factors and genotype x environmental interactions. While there were no significant differences between populations for particular periods of the day, within-population analysis for each sex showed specific differences. Results showed that wing loading was the least variable character in natural populations, also showing the lowest level of sexual dimorphism. The data are discussed from the aspect of the variability of gene arrangement frequencies over daytime periods obtained previously for the same samples. They are consistent with models of maintenance of genetic variability in multi-niche habitats, and are in favour of a type of reactive behaviour dependent on ecological niche qualities on a daily rhythm scale in D. subobscura.

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Section: Resultssupporting

confidence: 87%

Effect of Microhabitat Variability on Body Size in Drosophila subobscura

Stamenković‐Radak¹,

Rašić²,

Cucković³

et al. 2008

folia biol (krakow)

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“…The population of D. subobscura from Jastrebac Mountain was specifically characterized by a significant increase in the gene arrangements Al, A2, J1, and U1+2+6. The frequencies of arrangement A2 showed erratic changes in some populations from Switzerland (Gosteli 1990), whereas frequencies of gene arrangement J1 changed seasonally (de Frutos and Prevosti 1984).…”

Section: Discussionmentioning

confidence: 92%

“…This phenomenon has already been reported earlier in other European populations of D . subobscura (de Frutos and Prevosti 1984;Gosteli 1990) and appears to be more of a general characteristic of European populations than a specific characteristic of local populations.…”

Section: Discussionmentioning

confidence: 98%

“…subobscura was extensively investigated in relation to its geographic distribution and from an evolutionary point of view (Krimbas and Loukas 1980;Prevosti et al 1988;Krimbas 1992;Mestres et al 1994). The pattern of chromosomal polymorphism of D. subobscura was also analysed in relation to temporal (Sperlich and Feuerbach 1966;de Frutos and Prevosti 1984), daily (Jungen 1970;Gosteli 1991), seasonal (Krimbas 1992), and annual variations (Burla and Gotz 1965;Gosteli 1990), as well as to variation between localities (Burla and Gotz 1965;Burla et al 1986). In all cases, only erratic changes were observed.…”

Section: Introductionmentioning

confidence: 99%

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Chromosomal inversion polymorphism of Drosophila subobscura populations from Jastrebac Mountain shows temporal and habitat-related changes

Zivanovic¹,

Milanović²,

Andjelković³

2009

Journal of Zoological Systematics and Evolutionary Research

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Inversion polymorphism in populations of D. subobscura from a beech forest on Jastrebac mountain was studied in June 1990, 1993, and 1994, respectively. The same analysis was performed in 1990 for D. subobscura populations in a beech forest and an oak forest in the same region. Statistically significant differences in the frequencies of the gene arrangements of A1, J and U chromosome were observed during the period of investigation. A tendency towards a decrease in the frequency of the standard gene arrangements was found for all chromosomes, but was particularly evident with chromosomes A and J. The frequency of the gene arrangements A1 A2, J1 and U1–2+6 increased at the same time. Differences in the frequency of the gene arrangements of A, J and U chromosomes were also observed when the populations from two ecologically different habitats (beech and oak forest) were compared in 1990.

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“…Cabrera et at. (1985) found diet differences in allozyme frequencies in natural populations of D. subobscura in the Canary Islands, and similarly Gosteli (1991) found diet differences in inversion frequencies in samples taken from Swiss natural populations. As the authors remark, their results are possible only if there were genetic polymorphism in circadian flight activity rhythm.…”

Section: North-south Differences In the Rhythmmentioning

confidence: 90%

North–south differences in circadian eclosion rhythm in European populations of Drosophila subobscura

Lankinen

1993

Heredity

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The circadian pupal eclosion rhythm was studied in 12 strains of Drosophila subobscura originating from two regions: Scandinavia (56-63°N), and the Canary Islands (28°N). Inmost parameters of the rhythm, ample variability was found both within and between the regions. Among the strains the phase of the eclosion median in an entraining die! light-dark cyc!e varied by 8.1 h, and the period of the free-running rhythm (r) by 2.2 h. In the comparison between the two regions, the Scandinavian entrained rhythm had on average a 2.8 h ear!ier phase, r was 0.9 h shorter, and the amplitude of the rhythm was lower. Of the rhythm parameters, early phase was correlated with short r (r = 0.76), and the amplitude of the entrained rhythm was correlated with the amplitude of the free-running rhythm (r =0.98). In addition to the geographica! variation, a putative arhythmic recessive autosomal mutant was found to segregate in one Scandinavian strain. The lack of photoperiodic adult diapause was confirmed in D. subobscura. The results show that the circadian eclosion rhythm in a nonphotoperiodic species can vary latitudinally in a fashion simi!ar to that of photoperiodic species.

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Differential flight activity among karyotypes: daily and weather-induced changes in chromosomal inversion polymorphism in natural populations of Drosophila subobscura

Cited by 10 publications

References 28 publications

Effect of Microhabitat Variability on Body Size in Drosophila subobscura

Effect of Microhabitat Variability on Body Size in Drosophila subobscura

Chromosomal inversion polymorphism of Drosophila subobscura populations from Jastrebac Mountain shows temporal and habitat-related changes

North–south differences in circadian eclosion rhythm in European populations of Drosophila subobscura

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