EJPAU 2008. Grzesiuk A. , Marciniuk J. , Marciniuk P. CHROMOSOMAL DIVERSITY AMONG POLISH ORIGIN SPECIES OF <I>TARAXACUM</I> GENUS

Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

2008
Volume 11
Issue 4

Topic:

Biology

ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES

Grzesiuk A. , Marciniuk J. , Marciniuk P. 2008. CHROMOSOMAL DIVERSITY AMONG POLISH ORIGIN SPECIES OF TARAXACUM GENUS, EJPAU 11(4), #14.
Available Online: http://www.ejpau.media.pl/volume11/issue4/abs-14.html

CHROMOSOMAL DIVERSITY AMONG POLISH ORIGIN SPECIES OF TARAXACUM GENUS

Anna Grzesiuk¹, Jolanta Marciniuk², Paweł Marciniuk²
¹ Department of Plant Physiology and Genetics, University of Podlasie, Poland
² Department of Botany, Institute of Biology, University of Podlasie, Siedlce, Poland

ABSTRACT

Results of research concerning
the numbers of chromosomes in ten species of Taraxacum genus from area
of Poland have been presented in the paper. Among studied species origin six
of them was from Ruderalia section, two from Palustria section,
one from Borea section and one from Erythrosperma section. For T.
freticola H. Øllg., described in year 2006,
two numbers of chromosomes was found: triploidal number 2n = 24 and diploidal
number 2n = 16. According to our knowledge it is first information on numbers
of chromosomes in this species. Similarly in case of T. hepaticum and T.
melanostigma (in all these species 2n = 24) earlier data and reference had
not been found and it is probably the first data ever reported, concerning the
numbers of chromosomes in these species of Taraxacum genus. For the first
time the number of chromosomes for narrowly apprehended T. scanicum s.
str. 2n = 24 has been reported, earlier data concerned widely apprehended T.
scanicum s.l. enclosing a group of related species. For T. paucilobum new
number of chromosomes has been reported 2n = 26. For four species (T. copidophyllum 2n = 24, T. haematicum 2n
= 24, T. hemicyclum 2n = 24 and T. sinuatum 2n = 24) it
is the first time that data concerning the number of chromosomes from
area of Poland have been reported. The number of chromosome for tetraploidal T.
vindobonense 2n = 32 has been confirmed.

Key words: chromosome numbers, Taraxacum, Asteraceae, Poland.

Anna Grzesiuk
Department of Plant Physiology and Genetics,
University of Podlasie, Poland
B. Prusa 12, 08-110 Siedlce, Poland
email: grzesiuk@ap.siedlce.pl

Jolanta Marciniuk
Department of Botany, Institute of Biology,
University of Podlasie, Siedlce, Poland
B. Prusa 12, 08-110 Siedlce, Poland

email: jolam@ap.siedlce.pl

Paweł Marciniuk
Department of Botany, Institute of Biology,
University of Podlasie, Siedlce, Poland
B. Prusa 12, 08-110 Siedlce, Poland

Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.