Number of the records: 1
The Balkan endemic Picris hispidissima (Compositae): morphology, nuclear DNA content and relationship to the polymorphic P. hieracioides
- 1.
SYSNO ASEP 0332143 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title The Balkan endemic Picris hispidissima (Compositae): morphology, nuclear DNA content and relationship to the polymorphic P. hieracioides Title Balkánský endemit P. hispidissima: morfologie, obsah DNA a vztahy k polymorfnímu P. hieracioides Author(s) Slovák, M. (SK)
Urfus, Tomáš (BU-J) RID
Vít, Petr (BU-J) RID, ORCID
Marhold, K. (SK)Number of authors 4 Source Title Plant Systematics and Evolution. - : Springer - ISSN 0378-2697
Roč. 278, 3-4 (2009), s. 187-201Number of pages 15 s. Language eng - English Country AT - Austria Keywords Balkan Peninsula ; genome size ; multivariate morphometrics Subject RIV EF - Botanics CEZ AV0Z60050516 - BU-J (2005-2011) UT WOS 000264838800005 DOI 10.1007/s00606-008-0137-5 Annotation The only Balkan endemic of the genus Picris, Picris hispidissima, was studied in detail using morphological and karyological methods. The species was shown to be morphologically distinct from the closest taxon, Picris hieracioides, by the pectinate–ciliate indumentum of involucral bracts, dilatation of the peduncle, length of the outer and inner bracts, and indumentum colour. No morphological variation that would require taxonomic classification was found within this species. Despite the diploid chromosome number (2n = 2x = 10) being confirmed for P. hispidissima, variation of up to 9.5% in genome size was found. The likely explanation for this variation is hybridization and introgression with closely related P. hieracioides. The most convincing evidence for this hypothesis is the detection of plants with two clearly different DNA contents arising from a single capitulum found in the location where P. hispidissima and P. hieracioides co-occur. Workplace Institute of Botany Contact 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 Year of Publishing 2010
Number of the records: 1