New forms of chromosome polymorphism in Deschampsia Antarctica Desv. from the Argentine Islands of the Maritime Antarctic region

Cytogenetic analysis of D. antarctica plants from the Argentine Islands of the Maritime Antarctic region was performed. Chromosome number 2n = 26 was determined for most of the samples. New forms of chromosome polymorphism for the species were demonstrated for the first time. In particular, the plan...

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Main Authors:	D. O Navrotska, M. O. Twardovska, I. O. Andreev, I. Yu. Parnikoza, A. A. Betekhtin, O. M. Zahrychuk, N. M. Drobyk, R. Hasterok, V. A. Kunakh
Format:	Article
Language:	English
Published:	State Institution National Antarctic Scientific Center 2020-04-01
Series:	Український антарктичний журнал
Subjects:	deschampsia antarctica desv. chromosome number в chromosome mixoploidy chromosomal variability
Online Access:	http://uaj.uac.gov.ua/index.php/uaj/article/view/226

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spelling	doaj-7da77419a606448da256f90f3e5be6722020-11-25T03:02:24ZengState Institution National Antarctic Scientific CenterУкраїнський антарктичний журнал 1727-74852415-30872020-04-011318519110.33275/1727-7485.13.2014.226226New forms of chromosome polymorphism in Deschampsia Antarctica Desv. from the Argentine Islands of the Maritime Antarctic regionD. O Navrotska0M. O. Twardovska1I. O. Andreev2I. Yu. Parnikoza3A. A. Betekhtin4O. M. Zahrychuk5N. M. Drobyk6R. Hasterok7V. A. Kunakh8Institute of Molecular Biology and Genetics of National Academy of Science of Ukraine, Ukraine, 03143, Kyiv, Akademica Zabolotnogo str., 150Institute of Molecular Biology and Genetics of National Academy of Science of Ukraine, Ukraine, 03143, Kyiv, Akademica Zabolotnogo str., 150Institute of Molecular Biology and Genetics of National Academy of Science of Ukraine, Ukraine, 03143, Kyiv, Akademica Zabolotnogo str., 150Institute of Molecular Biology and Genetics of National Academy of Science of Ukraine, Ukraine, 03143, Kyiv, Akademica Zabolotnogo str., 150University of Silesia in Katowice, Faculty of Biology and Environmental Protection, Department of Plant Anatomy and Cytology, Poland, 40-032, Katowice, Jagiellonska str., 28Тernopil Volodymyr Hnatiuk National Pedagogical University, Ukraine, 46027, Тernopil, М. Кryvonosa str., 2Тernopil Volodymyr Hnatiuk National Pedagogical University, Ukraine, 46027, Тernopil, М. Кryvonosa str., 2University of Silesia in Katowice, Faculty of Biology and Environmental Protection, Department of Plant Anatomy and Cytology, Poland, 40-032, Katowice, Jagiellonska str., 28Institute of Molecular Biology and Genetics of National Academy of Science of Ukraine, Ukraine, 03143, Kyiv, Akademica Zabolotnogo str., 150Cytogenetic analysis of D. antarctica plants from the Argentine Islands of the Maritime Antarctic region was performed. Chromosome number 2n = 26 was determined for most of the samples. New forms of chromosome polymorphism for the species were demonstrated for the first time. In particular, the plants from Darboux Island were found, to have some cells that contained one supernumerary B-chromosome along with 26 chromosomes of a regular set. The plants from Great Yalour Island were determined to be mixoploid – the number of chromosomes ranged from 13 to 39. The occurrence of new and unknown earlier karyotypic forms of D. antarctica might have resulted from increased genome instability due to the extreme environmental conditions in the Argentine Islands region.http://uaj.uac.gov.ua/index.php/uaj/article/view/226deschampsia antarctica desv.chromosome numberв chromosomemixoploidychromosomal variability
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	D. O Navrotska M. O. Twardovska I. O. Andreev I. Yu. Parnikoza A. A. Betekhtin O. M. Zahrychuk N. M. Drobyk R. Hasterok V. A. Kunakh
spellingShingle	D. O Navrotska M. O. Twardovska I. O. Andreev I. Yu. Parnikoza A. A. Betekhtin O. M. Zahrychuk N. M. Drobyk R. Hasterok V. A. Kunakh New forms of chromosome polymorphism in Deschampsia Antarctica Desv. from the Argentine Islands of the Maritime Antarctic region Український антарктичний журнал deschampsia antarctica desv. chromosome number в chromosome mixoploidy chromosomal variability
author_facet	D. O Navrotska M. O. Twardovska I. O. Andreev I. Yu. Parnikoza A. A. Betekhtin O. M. Zahrychuk N. M. Drobyk R. Hasterok V. A. Kunakh
author_sort	D. O Navrotska
title	New forms of chromosome polymorphism in Deschampsia Antarctica Desv. from the Argentine Islands of the Maritime Antarctic region
title_short	New forms of chromosome polymorphism in Deschampsia Antarctica Desv. from the Argentine Islands of the Maritime Antarctic region
title_full	New forms of chromosome polymorphism in Deschampsia Antarctica Desv. from the Argentine Islands of the Maritime Antarctic region
title_fullStr	New forms of chromosome polymorphism in Deschampsia Antarctica Desv. from the Argentine Islands of the Maritime Antarctic region
title_full_unstemmed	New forms of chromosome polymorphism in Deschampsia Antarctica Desv. from the Argentine Islands of the Maritime Antarctic region
title_sort	new forms of chromosome polymorphism in deschampsia antarctica desv. from the argentine islands of the maritime antarctic region
publisher	State Institution National Antarctic Scientific Center
series	Український антарктичний журнал
issn	1727-7485 2415-3087
publishDate	2020-04-01
description	Cytogenetic analysis of D. antarctica plants from the Argentine Islands of the Maritime Antarctic region was performed. Chromosome number 2n = 26 was determined for most of the samples. New forms of chromosome polymorphism for the species were demonstrated for the first time. In particular, the plants from Darboux Island were found, to have some cells that contained one supernumerary B-chromosome along with 26 chromosomes of a regular set. The plants from Great Yalour Island were determined to be mixoploid – the number of chromosomes ranged from 13 to 39. The occurrence of new and unknown earlier karyotypic forms of D. antarctica might have resulted from increased genome instability due to the extreme environmental conditions in the Argentine Islands region.
topic	deschampsia antarctica desv. chromosome number в chromosome mixoploidy chromosomal variability
url	http://uaj.uac.gov.ua/index.php/uaj/article/view/226
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New forms of chromosome polymorphism in Deschampsia Antarctica Desv. from the Argentine Islands of the Maritime Antarctic region

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