Long-term retainment of some chromosomal inversions in a local population of Belgica antarctica Jacobs (Diptera, Chironomidae)
Genome of antarctic endemic Belgica antarctica Jacobs has been sequenced. However, no set of inversion diagnostic markers has ever been assigned for the species. Using the classical method of polytene chromosome squash preparation, we found three heterozygous inversions located on the second (two he...
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ftmasarykunivojs:oai:ojs.journals.muni.cz:article/15415 2023-05-15T13:46:41+02:00 Long-term retainment of some chromosomal inversions in a local population of Belgica antarctica Jacobs (Diptera, Chironomidae) Michailova, Paraskeva Ilkova, Julia Kovalenko, Pavlo Dzhulai, Artem Kozeretska, Iryna 2021-08-24 application/pdf http://journals.muni.cz/CPR/article/view/15415 eng eng Masaryk Univerzity http://journals.muni.cz/CPR/article/view/15415/12282 http://journals.muni.cz/CPR/article/view/15415 Copyright (c) 2020 Czech Polar Reports https://creativecommons.org/licenses/by-nc-nd/4.0 CC-BY-NC-ND Czech Polar Reports; Vol 11 No 1 (2021); 16-24 Czech Polar Reports; Vol. 11 No. 1 (2021); 16-24 1805-0697 1805-0689 Antarctic midge salivary gland chromosomes heterozygous inversion dark band info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2021 ftmasarykunivojs 2022-06-26T10:16:45Z Genome of antarctic endemic Belgica antarctica Jacobs has been sequenced. However, no set of inversion diagnostic markers has ever been assigned for the species. Using the classical method of polytene chromosome squash preparation, we found three heterozygous inversions located on the second (two heterozygous inversions) and third chromosomes (one heterozygous inversion) in the Belgica antarctica population of a cape of Wiencke Island, 500 m to SW from Port Lockroy. The chromosome set and chromosome variability did not differ from those described in the literature (Atchley and Davis 1979). Every salivary gland chromosome had its own markers by which it can be determined. However, we did not find a sex-linked inversion on chromosome III and heterozygous inversion on chromosome I, reported in earlier studies. For the first time, we observed a strong heterochromatin band in chromosome III at the telomere of one arm. Our data show not only the stability of the described inversions in the population but also the usefulness of the squash preparation technique in the studies of genetic variability of Belgica antarctica in present time. Article in Journal/Newspaper Antarc* Antarctic Antarctic midge Antarctica Belgica antarctica Wiencke Island Masaryk University Journals Antarctic Lockroy ENVELOPE(-63.500,-63.500,-64.817,-64.817) Port Lockroy ENVELOPE(-63.500,-63.500,-64.817,-64.817) Wiencke ENVELOPE(-63.417,-63.417,-64.500,-64.500) Wiencke Island ENVELOPE(-63.500,-63.500,-64.750,-64.750) |
institution |
Open Polar |
collection |
Masaryk University Journals |
op_collection_id |
ftmasarykunivojs |
language |
English |
topic |
Antarctic midge salivary gland chromosomes heterozygous inversion dark band |
spellingShingle |
Antarctic midge salivary gland chromosomes heterozygous inversion dark band Michailova, Paraskeva Ilkova, Julia Kovalenko, Pavlo Dzhulai, Artem Kozeretska, Iryna Long-term retainment of some chromosomal inversions in a local population of Belgica antarctica Jacobs (Diptera, Chironomidae) |
topic_facet |
Antarctic midge salivary gland chromosomes heterozygous inversion dark band |
description |
Genome of antarctic endemic Belgica antarctica Jacobs has been sequenced. However, no set of inversion diagnostic markers has ever been assigned for the species. Using the classical method of polytene chromosome squash preparation, we found three heterozygous inversions located on the second (two heterozygous inversions) and third chromosomes (one heterozygous inversion) in the Belgica antarctica population of a cape of Wiencke Island, 500 m to SW from Port Lockroy. The chromosome set and chromosome variability did not differ from those described in the literature (Atchley and Davis 1979). Every salivary gland chromosome had its own markers by which it can be determined. However, we did not find a sex-linked inversion on chromosome III and heterozygous inversion on chromosome I, reported in earlier studies. For the first time, we observed a strong heterochromatin band in chromosome III at the telomere of one arm. Our data show not only the stability of the described inversions in the population but also the usefulness of the squash preparation technique in the studies of genetic variability of Belgica antarctica in present time. |
format |
Article in Journal/Newspaper |
author |
Michailova, Paraskeva Ilkova, Julia Kovalenko, Pavlo Dzhulai, Artem Kozeretska, Iryna |
author_facet |
Michailova, Paraskeva Ilkova, Julia Kovalenko, Pavlo Dzhulai, Artem Kozeretska, Iryna |
author_sort |
Michailova, Paraskeva |
title |
Long-term retainment of some chromosomal inversions in a local population of Belgica antarctica Jacobs (Diptera, Chironomidae) |
title_short |
Long-term retainment of some chromosomal inversions in a local population of Belgica antarctica Jacobs (Diptera, Chironomidae) |
title_full |
Long-term retainment of some chromosomal inversions in a local population of Belgica antarctica Jacobs (Diptera, Chironomidae) |
title_fullStr |
Long-term retainment of some chromosomal inversions in a local population of Belgica antarctica Jacobs (Diptera, Chironomidae) |
title_full_unstemmed |
Long-term retainment of some chromosomal inversions in a local population of Belgica antarctica Jacobs (Diptera, Chironomidae) |
title_sort |
long-term retainment of some chromosomal inversions in a local population of belgica antarctica jacobs (diptera, chironomidae) |
publisher |
Masaryk Univerzity |
publishDate |
2021 |
url |
http://journals.muni.cz/CPR/article/view/15415 |
long_lat |
ENVELOPE(-63.500,-63.500,-64.817,-64.817) ENVELOPE(-63.500,-63.500,-64.817,-64.817) ENVELOPE(-63.417,-63.417,-64.500,-64.500) ENVELOPE(-63.500,-63.500,-64.750,-64.750) |
geographic |
Antarctic Lockroy Port Lockroy Wiencke Wiencke Island |
geographic_facet |
Antarctic Lockroy Port Lockroy Wiencke Wiencke Island |
genre |
Antarc* Antarctic Antarctic midge Antarctica Belgica antarctica Wiencke Island |
genre_facet |
Antarc* Antarctic Antarctic midge Antarctica Belgica antarctica Wiencke Island |
op_source |
Czech Polar Reports; Vol 11 No 1 (2021); 16-24 Czech Polar Reports; Vol. 11 No. 1 (2021); 16-24 1805-0697 1805-0689 |
op_relation |
http://journals.muni.cz/CPR/article/view/15415/12282 http://journals.muni.cz/CPR/article/view/15415 |
op_rights |
Copyright (c) 2020 Czech Polar Reports https://creativecommons.org/licenses/by-nc-nd/4.0 |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766245088819675136 |