Spined Loache Settlements Structure (Cobitidae) of the Eastern Ukraine River Systems and Alternative Character of Diploid and Polyploids Populations.

Spined Loache Settlements Structure (Cobitidae) of the Eastern Ukraine River Systems and Alternative Character of Diploid and Polyploids Populations.

The structure of spined loaches diploid-poliploid complex of Cobitis genera representatives as well as Sabanjeewia aurata of the Eastern Ukraine river systems were investigated by allozyme analysis and cytometry. In total 39 samples and 1412 specimens from the upper left tributaries of the Dnieper R...

Full description

Saved in:
Bibliographic Details
Date:2022
Main Authors: Mezhzherin , S. V., Kryvokhyzha , D., Tsyba , A. A., Rostovskaya , O. V.
Format: Article
Language:English
Published: Publishing House "Akademperiodyka" of the National Academy of Sciences of Ukraine 2022
Online Access:https://ojs.akademperiodyka.org.ua/index.php/Zoodiversity/article/view/339
Tags: Add Tag
No Tags, Be the first to tag this record!
Journal Title:Journal Zoodiversity

Institution

Journal Zoodiversity
id zoodiv-article-339
record_format ojs
spelling zoodiv-article-3392023-12-05T09:39:53Z Spined Loache Settlements Structure (Cobitidae) of the Eastern Ukraine River Systems and Alternative Character of Diploid and Polyploids Populations. Mezhzherin , S. V. Kryvokhyzha , D. Tsyba , A. A. Rostovskaya , O. V. spined loaches Cobitis Sabanejewia hybridization polyploidy parthenogenesis biological invasion population structure The structure of spined loaches diploid-poliploid complex of Cobitis genera representatives as well as Sabanjeewia aurata of the Eastern Ukraine river systems were investigated by allozyme analysis and cytometry. In total 39 samples and 1412 specimens from the upper left tributaries of the Dnieper River, the Donets Basin, the coastal rivers of the Azov Sea and the Lower Dnieper were studied. We identified the representatives of C. (superspecies taenia) (51,6% of all researched specimens). C melanoleuca (4,1%), S. aurata (1,1%), allodiploids C. (superspecies taenia) × C melanoleuca (0,3%) and two groups of polyploid hybrids (46,4%). EET-group includs mainly C. elongatoides – 2 taenia and  C. elongatoides – taenia – tanaitica. EET-group (2,8%) is represented only by C. elongatoides – 2 tanaitica biotype. In the Lower Donets and the Lower Dnieper, there is a zone of introgressive hybridization between C. taenia and C. tanaitica. The structure of settlements differs accordingly to the river basins and has a tendency to decreasing of polyploids frequency respetivly to meridional direction. The analysis of loaches samples from the coastal rivers of  the Azov Sea collected in 1938 and samples from the Middle part of the Donets River in 1971 leads to the conclusion that polyploids in mentioned above regions appeared in 1960-1970s. The structure of diploid-polyploid settlements has an alternative character. More often, there is a predominance of diploids or polyploids. The reason of such bipolarity of settlements could be as reproductive displacement so a relatively strong tolerance of polyploids to anthropogenic climate change. Publishing House "Akademperiodyka" of the National Academy of Sciences of Ukraine 2022-07-27 Article Article application/pdf https://ojs.akademperiodyka.org.ua/index.php/Zoodiversity/article/view/339 10.15407/zoo2022.04.331 Zoodiversity; Vol. 56 No. 4 (2022): Zoodiversity Zoodiversity (Vestnik Zoologii); Том 56 № 4 (2022): Zoodiversity 2707-7268 2707-725X 10.15407/zoo2022.04 en https://ojs.akademperiodyka.org.ua/index.php/Zoodiversity/article/view/339/171 Copyright (c) 2022 S. V. Mezhzherin , D. Kryvokhyzha ; A. A. Tsyba ; O. V. Rostovskaya
institution Journal Zoodiversity
baseUrl_str
datestamp_date 2023-12-05T09:39:53Z
collection OJS
language English
topic_facet spined loaches
Cobitis
Sabanejewia
hybridization
polyploidy
parthenogenesis
biological invasion
population structure
format Article
author Mezhzherin , S. V.
Kryvokhyzha , D.
Tsyba , A. A.
Rostovskaya , O. V.
spellingShingle Mezhzherin , S. V.
Kryvokhyzha , D.
Tsyba , A. A.
Rostovskaya , O. V.
Spined Loache Settlements Structure (Cobitidae) of the Eastern Ukraine River Systems and Alternative Character of Diploid and Polyploids Populations.
author_facet Mezhzherin , S. V.
Kryvokhyzha , D.
Tsyba , A. A.
Rostovskaya , O. V.
author_sort Mezhzherin , S. V.
title Spined Loache Settlements Structure (Cobitidae) of the Eastern Ukraine River Systems and Alternative Character of Diploid and Polyploids Populations.
title_short Spined Loache Settlements Structure (Cobitidae) of the Eastern Ukraine River Systems and Alternative Character of Diploid and Polyploids Populations.
title_full Spined Loache Settlements Structure (Cobitidae) of the Eastern Ukraine River Systems and Alternative Character of Diploid and Polyploids Populations.
title_fullStr Spined Loache Settlements Structure (Cobitidae) of the Eastern Ukraine River Systems and Alternative Character of Diploid and Polyploids Populations.
title_full_unstemmed Spined Loache Settlements Structure (Cobitidae) of the Eastern Ukraine River Systems and Alternative Character of Diploid and Polyploids Populations.
title_sort spined loache settlements structure (cobitidae) of the eastern ukraine river systems and alternative character of diploid and polyploids populations.
description The structure of spined loaches diploid-poliploid complex of Cobitis genera representatives as well as Sabanjeewia aurata of the Eastern Ukraine river systems were investigated by allozyme analysis and cytometry. In total 39 samples and 1412 specimens from the upper left tributaries of the Dnieper River, the Donets Basin, the coastal rivers of the Azov Sea and the Lower Dnieper were studied. We identified the representatives of C. (superspecies taenia) (51,6% of all researched specimens). C melanoleuca (4,1%), S. aurata (1,1%), allodiploids C. (superspecies taenia) × C melanoleuca (0,3%) and two groups of polyploid hybrids (46,4%). EET-group includs mainly C. elongatoides – 2 taenia and  C. elongatoides – taenia – tanaitica. EET-group (2,8%) is represented only by C. elongatoides – 2 tanaitica biotype. In the Lower Donets and the Lower Dnieper, there is a zone of introgressive hybridization between C. taenia and C. tanaitica. The structure of settlements differs accordingly to the river basins and has a tendency to decreasing of polyploids frequency respetivly to meridional direction. The analysis of loaches samples from the coastal rivers of  the Azov Sea collected in 1938 and samples from the Middle part of the Donets River in 1971 leads to the conclusion that polyploids in mentioned above regions appeared in 1960-1970s. The structure of diploid-polyploid settlements has an alternative character. More often, there is a predominance of diploids or polyploids. The reason of such bipolarity of settlements could be as reproductive displacement so a relatively strong tolerance of polyploids to anthropogenic climate change.
publisher Publishing House "Akademperiodyka" of the National Academy of Sciences of Ukraine
publishDate 2022
url https://ojs.akademperiodyka.org.ua/index.php/Zoodiversity/article/view/339
work_keys_str_mv AT mezhzherinsv spinedloachesettlementsstructurecobitidaeoftheeasternukraineriversystemsandalternativecharacterofdiploidandpolyploidspopulations
AT kryvokhyzhad spinedloachesettlementsstructurecobitidaeoftheeasternukraineriversystemsandalternativecharacterofdiploidandpolyploidspopulations
AT tsybaaa spinedloachesettlementsstructurecobitidaeoftheeasternukraineriversystemsandalternativecharacterofdiploidandpolyploidspopulations
AT rostovskayaov spinedloachesettlementsstructurecobitidaeoftheeasternukraineriversystemsandalternativecharacterofdiploidandpolyploidspopulations
first_indexed 2025-07-22T04:03:13Z
last_indexed 2025-07-22T04:03:13Z
_version_ 1849604045675692032

Similar Items