13 research outputs found
Geographical parthenogenesis, genome size variation and pollen production in the arctic-alpine species Hieracium alpinum
Full text linkGeneration of an integrated Hieracium genomic and transcriptomic resource enables exploration of small RNA pathways during apomixis initiation
Full text linkRare recent natural hybridization in Hieracium s. str. – evidence from morphology, allozymes and chloroplast DNA
No full textNuclear DNA content in some species of Lessingianthus (Vernonieae, Asteraceae) by flow cytometry
Get PDFThe nuclear DNA content was determined for the first time in 25 species of the South American genus Lessingianthus H.Rob. (Vernonieae, Asteraceae) by flow cytometry. This analysis constitutes the first estimation of the genome size for the Vernonieae tribe. The 2C- and 1Cx-values were calculated in all the species. The 2Cvalue ranged from 2.04 to 14.34 pg. The 1Cx-value ranged from 0.995 to 1.43 pg. The general tendency indicated a decrease in the 1Cx-value with increasing ploidy level, with some exceptions, in some species the 1Cx-value increased with the ploidy increase. The measuring of DNA content allowed reporting a new cytotype for L. polyphyllus (Sch.Bip.) H.RobFil: Angulo, Maria Betiana. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Nordeste. Instituto de Botánica del Nordeste (i); Argentina;Fil: Dematteis, Massimiliano. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
The Detection, Rate and Manifestation of Residual Sexuality in Apomictic Populations of Pilosella (Asteraceae, Lactuceae)
No full textNuclear DNA content in some species of Lessingianthus (Vernonieae, Asteraceae) by flow cytometry
No full textEvolution of apomixis loci in Pilosella and Hieracium (Asteraceae) inferred from the conservation of apomixis-linked markers in natural and experimental populations
No full textAllozyme Variation in Diploid, Polyploid and Mixed-Ploidy Populations of the Pilosella alpicola Group (Asteraceae): Relation to Morphology, Origin of Polyploids and Breeding System
No full textEnriching Ploidy Level Diversity: the Role of Apomictic and Sexual Biotypes of Hieracium subgen. Pilosella (Asteraceae) that Coexist in Polyploid Populations
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