caa a22 4500 477038492 CHVBK 20180405111310.0 cr unu---uuuuu 170330e19960901xx s 000 0 eng 10.1007/BF00983386 doi (NATIONALLICENCE)springer-10.1007/BF00983386 Closely related Allium species ( Alliaceae ) share a very similar satellite sequence [Elektronische Daten] [U. Pich, R. Fritsch, I. Schubert] A satellite sequence repeat ofAllium cepa was tested by fluorescent in situ hybridization (FISH) for cross-hybridization to chromosomes of 27 species (in 37 accessions) belonging to 14 sections of four subgenera ofAllium. All investigated species of sect.Cepa, with the two subsects.Cepa andPhyllodolon, revealed clear satellite-specific hybridization signals mainly at their chromosome termini. The tested species belonging to other sections/subgenera revealed no hybridization signals. An exception wasA. roylei, assigned to sect.Oreiprason. Its chromosomes also showed strong terminal hybridization signals. This and other features suggest a close relationship ofA. roylei to the species of sect.Cepa in spite of deviating morphological characters. The divergence between the satellite repeats to species to which theA. cepa repeat cross-hybridized was determined and revealed high degrees of similarity. Therefore, we conclude that this satellite sequence had evolved already in progenitor forms of sect.Cepa and remained unusually well conserved during speciation. This might indicate selection pressure exerted on a secondarily acquired telomere function of the satellite sequence. Springer-Verlag, 1996 Alliaceae nationallicence Allium nationallicence Satellite DNA nationallicence fluorescent in situ hybridization nationallicence sequence homology nationallicence phylogeny nationallicence Pich U. Institut für Pflanzengenetik und Kulturpflanzenforschung, Corrensstraße 3, D-06466, Gatersleben, Federal Republic of Germany aut Fritsch R. Institut für Pflanzengenetik und Kulturpflanzenforschung, Corrensstraße 3, D-06466, Gatersleben, Federal Republic of Germany aut Schubert I. Institut für Pflanzengenetik und Kulturpflanzenforschung, Corrensstraße 3, D-06466, Gatersleben, Federal Republic of Germany aut Plant Systematics and Evolution Springer-Verlag 202/3-4(1996-09-01), 255-264 0378-2697 202:3-4<255 1996 202 606 https://doi.org/10.1007/BF00983386 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00983386 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pich U. Institut für Pflanzengenetik und Kulturpflanzenforschung, Corrensstraße 3, D-06466, Gatersleben, Federal Republic of Germany aut NATIONALLICENCE 700 1- Fritsch R. Institut für Pflanzengenetik und Kulturpflanzenforschung, Corrensstraße 3, D-06466, Gatersleben, Federal Republic of Germany aut NATIONALLICENCE 700 1- Schubert I. Institut für Pflanzengenetik und Kulturpflanzenforschung, Corrensstraße 3, D-06466, Gatersleben, Federal Republic of Germany aut NATIONALLICENCE 773 0- Plant Systematics and Evolution Springer-Verlag 202/3-4(1996-09-01), 255-264 0378-2697 202:3-4<255 1996 202 606 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer