Repeated reunions and splits feature the highly dynamic evolution of 5S and 35S ribosomal RNA genes (rDNA) in the Asteraceae family
Related Articles
- Genome Size Variation in the Genus Carthamus (Asteraceae, Cardueae): Systematic Implications and Additive Changes During Allopolyploidization. GARNATJE, TERESA; GARCIA, SÒNIA; VILATERSANA, ROSER; VALLÈS, JOAN // Annals of Botany;Mar2006, Vol. 97 Issue 3, p461
• Background and Aims Plant genome size is an important biological characteristic, with relationships to systematics, ecology and distribution. Currently, there is no information regarding nuclear DNA content for any Carthamus species. In addition to improving the knowledge base, this...
- Contrasting patterns of the 5S and 45S rDNA evolutions in the Byblis liniflora complex (Byblidaceae). Fukushima, Kenji; Imamura, Kaori; Nagano, Katsuya; Hoshi, Yoshikazu // Journal of Plant Research;Mar2011, Vol. 124 Issue 2, p231
To clarify the evolutionary dynamics of ribosomal RNA genes (rDNAs) in the Byblis liniflora complex (Byblidaceae), we investigated the 5S and 45S rDNA genes through (1) chromosomal physical mapping by fluorescence in situ hybridization (FISH) and (2) phylogenetic analyses using the...
- Molecular cytogenetic studies of the ' Xanthocephalum group' (Asteraceae). Moreno, Natalia; Stiefkens, L.; Las Peñas, M.; Bartoli, A.; Tortosa, R.; Bernardello, G. // Plant Systematics & Evolution;Oct2012, Vol. 298 Issue 8, p1503
Fourteen North American members of the ' Xanthocephalum group' were studied by classical and molecular cytogenetics. Location and number of rDNA sites were determined by FISH. For the 5S rDNA, a probe was obtained from Prionopsis ciliata. Most species were diploid (2 n = 12), although Isocoma...
- Examining morphological and molecular diagnostic character states of Cichorium intybus L. (Asteraceae) and C. spinosum L. Gemeinholzer, B.; Bachmann, K. // Plant Systematics & Evolution;Jun2005, Vol. 253 Issue 1-4, p105
The inter- and intraspecific variability of Cichorium intybus L. was examined to evaluate potential morphological and molecular diagnostic character states. Two diagnostic and one overlapping morphological character clearly delimit the two species C. intybus and C. spinosum. All applied...
- niger seed:. Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects;2003, p477
The article presents an encyclopedia entry for niger seed or Guizotia abyssinica, a member of Compositae.
- RDNA organization and evolutionary relationships in the Genus Hypochaeris (Asteraceae). Cerbah, M.; Coulaud, J.; Siljak-Yakovlev, S. // Journal of Heredity;Jul/Aug98, Vol. 89 Issue 4, p312
Presents a study on the pattern of ribonucleic deoxyribonucleic acid sequence distribution, in Hypochaeris species from South America and Europe. Materials and methods used to conduct the study; Evolutionary relationships between species; Results and discussion on the study.
- nrDNA SEQUENCE (ITS AND ETS) FROM HERBARIUM SPECIMENS REVEALS PHYLOGENETIC AFFINITIES OF ERIGERON GEISERI (ASTERACEAE). Noyes, Richard D.; Caraway, William; Groff, Dulcinea V. // Journal of the Botanical Research Institute of Texas;2015, Vol. 9 Issue 1, p11
Erigeron geiseri Shinners is a tap-rooted herbaceous daisy occurring from south-eastern Texas to southern Oklahoma. Our study of pollen quality from 67 herbarium specimens supports the hypothesis that the species comprises sexual diploid populations, restricted to southern locations, and...
- Investigation of the essential oil from eight species of Baccharis belonging to sect. Caulopterae (Asteraceae, Astereae): a taxonomic approach. Simões-Pires, C. A.; Debenedetti, S.; Spegazzini, E.; Mentz, L. A.; Matzenbacher, N. I.; Limberger, R. P.; Henriques, A. T. // Plant Systematics & Evolution;Jun2005, Vol. 253 Issue 1-4, p23
Essential oils of B. articulata, B. crispa, B. microcephala, Baccharis milleflora, B. myriocephala, B. stenocephala, B. trimera and B. usterii, all of sect. Caulopterae, have been analyzed by GC and GC/MS. Despite the morphological similarity among these species, differences in composition of...
- Formation of a hybrid triploid agamosperm on a sexual diploid plant: evidence from progeny tests in Taraxacum platycarpum Dahlst. Mitsuyuki, Chika; Hoya, Akihiko; Shibaike, Hiroyuki; Watanabe, Mikio; Yahara, Tetsukazu // Plant Systematics & Evolution;May2014, Vol. 300 Issue 5, p863
Agamospermous dandelions of hybrid origin between a native sexual diploid species ( Taraxacum platycarpum Dahlst. or T. japonicum Koidz.) and an alien agamospermous triploid [ T. officinale Weber and T. laevigatum (Willd.) DC.] are now widely distributed throughout mainland Japan. These hybrid...