caa a22 4500 477082726 CHVBK 20180405111454.0 cr unu---uuuuu 170330e19960701xx s 000 0 eng 10.1007/BF01925567 doi (NATIONALLICENCE)springer-10.1007/BF01925567 Heterochromatin characterization and distribution in the chromosomes of two populations of Idotea baltica basteri Audouin, 1826 (Isopoda, Valvifera) [Elektronische Daten] [G. Odierna, L. Badalucci, S. Guarino, C. Gambardella, M. De Nicola] Two mediterranean populations ofIdotea baltica basteri from Messina and Naples showed a set of chromosomes composed by 58 all-biarmed chromosomes. The heterochromatin was located in the pericentromeric region of the chromosomes, and its composition appeared heterogeneous. In fact, not all the homologs showed heterochromatin resistant to digestion with three restriction enzymes (Alu I, Hae III and Sau 3A). Moreover, the two populations showed polymorphism in a band of G+C-rich telomeric heterochromatin, which was present only in the population from Messina. It is hypothesized that chromosomal polymorphism might reflect the geographical isolation of the two populations. It is also suggested that a process of diversification is taking place. Birkhäuser Verlag, 1996 Chromosomes nationallicence crustacea nationallicence Idotea baltica nationallicence isopod nationallicence Odierna G. Department of Evolutionary and Comparative Biology, Via Mezzocannone 8, I-80134, Naples, (Italy) aut Badalucci L. Department of Genetics, General and Molecular Biology, University of Naples, Via Mezzocannone 8, I-80134, Naples, (Italy) aut Guarino S. Institute for Biological Exploitation of the Lagoons, C.N.R., Via Pola 4, I-71010, Lesina (FG), (Italy) aut Gambardella C. Institute for Biological Exploitation of the Lagoons, C.N.R., Via Pola 4, I-71010, Lesina (FG), (Italy) aut De Nicola M. Department of Genetics, General and Molecular Biology, University of Naples, Via Mezzocannone 8, I-80134, Naples, (Italy) aut Experientia Birkhäuser-Verlag 52/7(1996-07-01), 652-656 0014-4754 52:7<652 1996 52 18 https://doi.org/10.1007/BF01925567 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01925567 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Odierna G. Department of Evolutionary and Comparative Biology, Via Mezzocannone 8, I-80134, Naples, (Italy) aut NATIONALLICENCE 700 1- Badalucci L. Department of Genetics, General and Molecular Biology, University of Naples, Via Mezzocannone 8, I-80134, Naples, (Italy) aut NATIONALLICENCE 700 1- Guarino S. Institute for Biological Exploitation of the Lagoons, C.N.R., Via Pola 4, I-71010, Lesina (FG), (Italy) aut NATIONALLICENCE 700 1- Gambardella C. Institute for Biological Exploitation of the Lagoons, C.N.R., Via Pola 4, I-71010, Lesina (FG), (Italy) aut NATIONALLICENCE 700 1- De Nicola M. Department of Genetics, General and Molecular Biology, University of Naples, Via Mezzocannone 8, I-80134, Naples, (Italy) aut NATIONALLICENCE 773 0- Experientia Birkhäuser-Verlag 52/7(1996-07-01), 652-656 0014-4754 52:7<652 1996 52 18 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer