TY  - JOUR
AU  - Živanović, Goran
AU  - Arenas, Concepcio
AU  - Mestres, Francesc
PY  - 2023
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/6130
AB  - Climatic change is a serious problem because it can irreversibly modify most ecosystems. Many species try to survive by adapting, through natural selection, to the new climatic conditions. In this scenario, the inversion chromosomal polymorphism of Drosophila subobscura is an excellent natural system through which to study the adaptations of organisms to climatic change. For analyzing the response of inversions to global warming, the chromosomes of annual samples (2019-2022) from a Petnica (Serbia) D. subobscura population were analyzed. These results were compared with those from other populations of this species, but belonging to different climatic regions (Avala, also in Serbia, and Font Groga, Spain). In all cases significant differences were observed, indicating that the inversion composition conferring adaptive capacity to flies in these regions was different. In Petnica, not all inversions responded in the same way to climatic variables: those located in E and U chromosomes presented more changes. Moreover, by comparing data from 2019-2022 with those from a previous sample also from Petnica (1995), it was possible to relate the changes in meteorological variables to frequency variations of 'cold', 'warm', and 'non-thermal'-adapted inversions for these years. These results allow for a better understanding of the genetic adaptations to new environmental conditions.
PB  - Basel: MDPI
T2  - Insects
T1  - The Adaptive Value of Chromosomal Inversions and Climatic Change-Studies on the Natural Populations of Drosophila subobscura from the Balkans
IS  - 7
VL  - 14
DO  - 10.3390/insects14070596
SP  - 596
ER  - 

@article{
author = "Živanović, Goran and Arenas, Concepcio and Mestres, Francesc",
year = "2023",
abstract = "Climatic change is a serious problem because it can irreversibly modify most ecosystems. Many species try to survive by adapting, through natural selection, to the new climatic conditions. In this scenario, the inversion chromosomal polymorphism of Drosophila subobscura is an excellent natural system through which to study the adaptations of organisms to climatic change. For analyzing the response of inversions to global warming, the chromosomes of annual samples (2019-2022) from a Petnica (Serbia) D. subobscura population were analyzed. These results were compared with those from other populations of this species, but belonging to different climatic regions (Avala, also in Serbia, and Font Groga, Spain). In all cases significant differences were observed, indicating that the inversion composition conferring adaptive capacity to flies in these regions was different. In Petnica, not all inversions responded in the same way to climatic variables: those located in E and U chromosomes presented more changes. Moreover, by comparing data from 2019-2022 with those from a previous sample also from Petnica (1995), it was possible to relate the changes in meteorological variables to frequency variations of 'cold', 'warm', and 'non-thermal'-adapted inversions for these years. These results allow for a better understanding of the genetic adaptations to new environmental conditions.",
publisher = "Basel: MDPI",
journal = "Insects",
title = "The Adaptive Value of Chromosomal Inversions and Climatic Change-Studies on the Natural Populations of Drosophila subobscura from the Balkans",
number = "7",
volume = "14",
doi = "10.3390/insects14070596",
pages = "596"
}

Živanović, G., Arenas, C.,& Mestres, F.. (2023). The Adaptive Value of Chromosomal Inversions and Climatic Change-Studies on the Natural Populations of Drosophila subobscura from the Balkans. in Insects
Basel: MDPI., 14(7), 596.
https://doi.org/10.3390/insects14070596

Živanović G, Arenas C, Mestres F. The Adaptive Value of Chromosomal Inversions and Climatic Change-Studies on the Natural Populations of Drosophila subobscura from the Balkans. in Insects. 2023;14(7):596.
doi:10.3390/insects14070596 .

Živanović, Goran, Arenas, Concepcio, Mestres, Francesc, "The Adaptive Value of Chromosomal Inversions and Climatic Change-Studies on the Natural Populations of Drosophila subobscura from the Balkans" in Insects, 14, no. 7 (2023):596,
https://doi.org/10.3390/insects14070596 . .

TY  - JOUR
AU  - Živanović, Goran
AU  - Arenas, Concepcio
AU  - Mestres, Francesc
PY  - 2011
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/1256
AB  - Lethal chromosomal frequencies were obtained from three Drosophila subobscura samples from the Mt. Avala (Serbia) population in September 2003 (0.218), June 2004 (0.204) and September 2004 (0.250). These values and those from other Balkan populations studied previously (Petnica, Kamariste, Zanjic and Djerdap) were used to analyze the possible effect of population, year, month and altitude above sea level on lethal chromosomal frequencies. According to ANOVAS no effect were observed. Furthermore, the lethal frequencies of the Balkan populations did not vary according to latitude. This is probably due to the relative proximity and high gene flow between these populations. From a joint study of all the Palearctic D. subobscura populations so far analyzed, it can be deduced that the Balkan populations are located in the central area of the species distribution. Finally, it seems that lethal chromosomal frequencies are a consequence of the genetic structure of the populations. DOI: 10.1134/S1022795411100188
T2  - Russian Journal of Genetics
T1  - O-Chromosome Lethal Frequencies in Serbian and Montenegrin Drosophila subobscura Populations
IS  - 10
VL  - 47
EP  - 1220
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_1256
ER  - 

@article{
author = "Živanović, Goran and Arenas, Concepcio and Mestres, Francesc",
year = "2011",
abstract = "Lethal chromosomal frequencies were obtained from three Drosophila subobscura samples from the Mt. Avala (Serbia) population in September 2003 (0.218), June 2004 (0.204) and September 2004 (0.250). These values and those from other Balkan populations studied previously (Petnica, Kamariste, Zanjic and Djerdap) were used to analyze the possible effect of population, year, month and altitude above sea level on lethal chromosomal frequencies. According to ANOVAS no effect were observed. Furthermore, the lethal frequencies of the Balkan populations did not vary according to latitude. This is probably due to the relative proximity and high gene flow between these populations. From a joint study of all the Palearctic D. subobscura populations so far analyzed, it can be deduced that the Balkan populations are located in the central area of the species distribution. Finally, it seems that lethal chromosomal frequencies are a consequence of the genetic structure of the populations. DOI: 10.1134/S1022795411100188",
journal = "Russian Journal of Genetics",
title = "O-Chromosome Lethal Frequencies in Serbian and Montenegrin Drosophila subobscura Populations",
number = "10",
volume = "47",
pages = "1220",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_1256"
}

Živanović, G., Arenas, C.,& Mestres, F.. (2011). O-Chromosome Lethal Frequencies in Serbian and Montenegrin Drosophila subobscura Populations. in Russian Journal of Genetics, 47(10).
https://hdl.handle.net/21.15107/rcub_ibiss_1256

Živanović G, Arenas C, Mestres F. O-Chromosome Lethal Frequencies in Serbian and Montenegrin Drosophila subobscura Populations. in Russian Journal of Genetics. 2011;47(10):null-1220.
https://hdl.handle.net/21.15107/rcub_ibiss_1256 .

Živanović, Goran, Arenas, Concepcio, Mestres, Francesc, "O-Chromosome Lethal Frequencies in Serbian and Montenegrin Drosophila subobscura Populations" in Russian Journal of Genetics, 47, no. 10 (2011),
https://hdl.handle.net/21.15107/rcub_ibiss_1256 .

TY  - JOUR
AU  - Živanović, Goran
AU  - Arenas, Concepcio
AU  - Mestres, Francesc
PY  - 2007
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/1582
AB  - Although Drosophila subobscura has been a model organism for European and American population geneticists, little information is available on the genetic structure of its natural populations. In this paper we report the estimates of some population parameters. We have used data from lethal allelism tests in four Balkan populations (Kamariste, Djerdap and Petnica in Serbia and Zanjic in Montenegro). In all populations, lethal genes were found to have a deleterious effect on heterozygotes. The N-e values varied greatly from 370 (Petnica) to 19413 (Kamariste), depending on the habitat conditions and some environmental factors. Finally, gene flow between the Balkan populations was detected by the estimates of N-m (from 4.68 in Petnica to 106.2 in Kamariste) and m (from 0.0041 in Djerdap to 0.0126 in Petnica). These results agree with those obtained in a previous study where the frequencies of allelism between populations were greater than predicted by independently arising lethal genes.
T2  - Hereditas
T1  - The genetic structure of Balkan populations of Drosophila subobscura
IS  - 4
VL  - 144
EP  - 128
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_1582
ER  - 

@article{
author = "Živanović, Goran and Arenas, Concepcio and Mestres, Francesc",
year = "2007",
abstract = "Although Drosophila subobscura has been a model organism for European and American population geneticists, little information is available on the genetic structure of its natural populations. In this paper we report the estimates of some population parameters. We have used data from lethal allelism tests in four Balkan populations (Kamariste, Djerdap and Petnica in Serbia and Zanjic in Montenegro). In all populations, lethal genes were found to have a deleterious effect on heterozygotes. The N-e values varied greatly from 370 (Petnica) to 19413 (Kamariste), depending on the habitat conditions and some environmental factors. Finally, gene flow between the Balkan populations was detected by the estimates of N-m (from 4.68 in Petnica to 106.2 in Kamariste) and m (from 0.0041 in Djerdap to 0.0126 in Petnica). These results agree with those obtained in a previous study where the frequencies of allelism between populations were greater than predicted by independently arising lethal genes.",
journal = "Hereditas",
title = "The genetic structure of Balkan populations of Drosophila subobscura",
number = "4",
volume = "144",
pages = "128",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_1582"
}

Živanović, G., Arenas, C.,& Mestres, F.. (2007). The genetic structure of Balkan populations of Drosophila subobscura. in Hereditas, 144(4).
https://hdl.handle.net/21.15107/rcub_ibiss_1582

Živanović G, Arenas C, Mestres F. The genetic structure of Balkan populations of Drosophila subobscura. in Hereditas. 2007;144(4):null-128.
https://hdl.handle.net/21.15107/rcub_ibiss_1582 .

Živanović, Goran, Arenas, Concepcio, Mestres, Francesc, "The genetic structure of Balkan populations of Drosophila subobscura" in Hereditas, 144, no. 4 (2007),
https://hdl.handle.net/21.15107/rcub_ibiss_1582 .