caa a22 4500 47703893X CHVBK 20180405111312.0 cr unu---uuuuu 170330e19960301xx s 000 0 eng 10.1007/BF00984752 doi (NATIONALLICENCE)springer-10.1007/BF00984752 Karyomorphological analyses and heterochromatin characteristics disclose phyletic relationships among 2n [Elektronische Daten] 32 and 2n = 36 species of Orchis ( Orchidaceae ) [Saverio D'Emerico, Domenico Pignone, Pasqua Bianco] The karyotypes of eight taxa ofOrchis L. with 2n = 32 and 2n = 36 have been investigated using morphometrical measurements following staining with Feulgen, Giemsa (C-banding) and the DNA specific fluorochrome Hoechst 33258. The karyotypes ofO. coriophora subsp.fragrans, andO. papilionacea proved to be the most asymmetrical, whileO. morio andO. longicornu exhibited the most symmetrical karyotypes. Using C-banding and the fluorochrome H33258 only the taxa with high asymmetry indices showed the presence of differentially stained chromatin bands. In most chromosomes heterochromatin bands were present at the telomeric position. The present results seem to indicate that the analysed species do not form a homogeneous group and further subdivisions are possible, which, in turn, do not always correlate with divisions based on morphological characters. Both karyomorphology and heterochromatin distribution coincide in indicating a possible evolutionary pathway. Springer-Verlag, 1996 Orchidaceae nationallicence Orchis nationallicence Karyotypes nationallicence chromosomal indices nationallicence Giemsa C-banding nationallicence fluorochrome Hoechst 33258 nationallicence karyotype evolution nationallicence D'Emerico Saverio Istituto di Botanica, Università di Bari, Via Orabona, 4, I-70125, Bari, Italy aut Pignone Domenico Istituto del Germoplasma, Via Amendola 165/A, I-70126, Bari, Italy aut Bianco Pasqua Istituto di Botanica, Università di Bari, Via Orabona, 4, I-70125, Bari, Italy aut Plant Systematics and Evolution Springer-Verlag 200/1-2(1996-03-01), 111-124 0378-2697 200:1-2<111 1996 200 606 https://doi.org/10.1007/BF00984752 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00984752 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- D'Emerico Saverio Istituto di Botanica, Università di Bari, Via Orabona, 4, I-70125, Bari, Italy aut NATIONALLICENCE 700 1- Pignone Domenico Istituto del Germoplasma, Via Amendola 165/A, I-70126, Bari, Italy aut NATIONALLICENCE 700 1- Bianco Pasqua Istituto di Botanica, Università di Bari, Via Orabona, 4, I-70125, Bari, Italy aut NATIONALLICENCE 773 0- Plant Systematics and Evolution Springer-Verlag 200/1-2(1996-03-01), 111-124 0378-2697 200:1-2<111 1996 200 606 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer