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The detection, rate and manifestation of residual sexuality in apomictic populations of Pilosella (Asteraceae, Lactuceae)

SYSNO ASEP	0430238
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	The detection, rate and manifestation of residual sexuality in apomictic populations of Pilosella (Asteraceae, Lactuceae)
Author(s)	Krahulcová, Anna (BU-J)_{RID, ORCID} Rotreklová, O. (CZ) Krahulec, František (BU-J)_{RID, ORCID}
Number of authors	3
Source Title	Folia Geobotanica. - : Springer - ISSN 1211-9520 Roč. 49, č. 2 (2014), s. 239-258
Number of pages	20 s.
Language	eng - English
Country	NL - Netherlands
Keywords	facultative apomixis ; haploid parthenogenesis ; interspecific hybridization ; Pilosella ; residual sexuality
Subject RIV	EF - Botanics
R&D Projects	GAP506/10/1363 GA ČR - Czech Science Foundation (CSF)
Institutional support	BU-J - RVO:67985939
UT WOS	000338233200008
DOI	10.1007/s12224-013-9166-0
Annotation	The effect of maternal, facultatively apomictic plants on population diversity was evaluated in seven hybridizing polypoid populations, where apomictic (P. aurantiaca or P. bauhini) and sexual (P. officinarum) biotypes coexist. Due to residual sexuality, the progeny different from their maternal parents (0.6-92.3% of embryos and 0-100% of seedlings) originated either sexually or via haploid parthenogenesis. The facultatively apomictic mothers generated the progeny more variable in ploidy level than was the progeny derived from sexual mothers. Residual sexuality in apomicts was also effective in experimental crosses. The 2n+n hybrids produced from an apomictic and a sexual parent (both in the field and in experiments), displayed similar reproductive behaviour, producing polyhaploid, sexual and apomictic progeny in variable ratios. The variation recorded in these populations suggests introgressive hybridization towards the sexual species.
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	2015

Number of the records: 1