Počet záznamů: 1

Towards resolving the Knautia arvensis agg. (Dipsacaceae) puzzle: primary and secondary contact zones and ploidy segregation at landscape and microgeographic scales

SYSNO ASEP	0326704
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Towards resolving the Knautia arvensis agg. (Dipsacaceae) puzzle: primary and secondary contact zones and ploidy segregation at landscape and microgeographic scales
Překlad názvu	Knautia arvensis agg. (Dipsacaceae): primární a sekundární zóny kontaktu ploidních cytotypů a jejich segregace na krajinné i mikrogeografické úrovni
Tvůrce(i)	Kolář, F. (CZ) Štech, M. (CZ) Trávníček, Pavel (BU-J)_{RID, ORCID} Rauchová, Jana (BU-J) Urfus, Tomáš (BU-J)_RID Vít, Petr (BU-J)_{RID, ORCID} Kubešová, Magdalena (BU-J)_RID Suda, Jan (BU-J)_RID
Celkový počet autorů	8
Zdroj.dok.	Annals of Botany. - : Oxford University Press - ISSN 0305-7364 Roč. 103, č. 6 (2009), s. 963-974
Poč.str.	12 s.
Jazyk dok.	eng - angličtina
Země vyd.	GB - Velká Británie
Klíč. slova	Knautia arvensis ; polyploidy ; ploidy mixture
Vědní obor RIV	EF - Botanika
CEP	KJB601110627 GA AV ČR - Akademie věd
CEZ	AV0Z60050516 - BU-J (2005-2011)
UT WOS	000264387600014
DOI	10.1093/aob/mcp016
Anotace	n the present study, it has been demonstrated that Knautia arvensis is an intriguing taxon that shows variation in both genome copy number and monoploid genome size. Diploid and tetraploid cytotypes exhibit spatial segregation at all the geographical scales examined, including the Central European portion of the distribution range, the zone of ploidy overlap, the mixed-ploidy populations, and the selected mixed-ploidy plots within such populations. Distributional and phenotypic data support the existence of both primary and sec- ondary zones of cytotype contact. Irrespective of taxonomic afﬁnity, ploidy level seems to be the major determinant of the strength of interploidy reproductive isolation. In addition, our study also highlights the importance of involving different ontogenetic stages when assessing evolutionary processes in mixed-ploidy populations.
Pracoviště	Botanický ústav
Kontakt	Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8
Rok sběru	2010

Počet záznamů: 1