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Hybridization success is largely limited to homoploid Prunus hybrids: a multidisciplinary approach
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SYSNO ASEP 0480212 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Hybridization success is largely limited to homoploid Prunus hybrids: a multidisciplinary approach Author(s) Macková, L. (CZ)
Vít, Petr (BU-J) RID, ORCID
Ďurišová, Ľ. (SK)
Eliáš, P. Jr. (SK)
Urfus, T. (CZ)Source Title Plant Systematics and Evolution. - : Springer - ISSN 0378-2697
Roč. 303, č. 4 (2017), s. 481-495Number of pages 15 s. Language eng - English Country AT - Austria Keywords absolute genome size ; interspecific hybridization ; embryology Subject RIV EF - Botanics OECD category Plant sciences, botany Institutional support BU-J - RVO:67985939 UT WOS 000398590800004 EID SCOPUS 85011536755 DOI 10.1007/s00606-016-1385-4 Annotation Prunus fruticosa is a rare shrub occurring in Eurasian thermophilous forest-steppe alliances. The species frequently hybridizes with cultivated Prunus species in Europe (allochthonous tetraploid P. cerasus and partly indigenous diploid P. avium). Propidium iodide flow cytometry, distance-based morphometrics, elliptic Fourier analysis and embryology were employed to evaluate the extent of hybridization in six Slovak populations. Flow cytometric analyses revealed three ploidy levels: diploid (P. avium), triploid (P. x mohacsyana) and tetraploid (P. fruticosa, P. x eminens and P. cerasus). In addition, P. fruticosa and P. cerasus, at the tetraploid level, were found to differ in absolute genome size. An embryological evaluation suggested the existence of a triploid block in P. x mohacsyana and significant potential for hybridization among tetraploid taxa (indicated also by a continuous distribution of genome size data and further mirrored by morphometrics). Although hybrids significantly differ in ploidy level and embryological characteristics, they are almost indistinguishable using morphological characters. Hybridization with P. cerasus thus turns out to be a significant threat to wild populations of P. fruticosa compared to the relatively weak influence of P. avium. 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 2018
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