caa a22 4500 465763472 CHVBK 20180323111906.0 cr unu---uuuuu 170327e19900801xx s 000 0 eng 10.1007/BF00233697 doi (NATIONALLICENCE)springer-10.1007/BF00233697 A study of enzyme polymorphism in the antarctic amphipod Paramoera walkeri Stebbing [Elektronische Daten] [T. Patarnello, P. Bisol, V. Varotto, V. Fuser, B. Battaglia] Summary: Studies concerning the evaluation of the genetic structure and the mechanisms of genetic adapation to the Antarctic environment were carried out on two population samples (A and B) of the amphipod Paramoera walkeri Stebbing collected in two different areas of the Terranova Bay during the Italian Antarctic Expedition 1987/1988. The analyses of the level of genetic variability were conducted on starch gel. The electrophoretic results on the twenty two loci examined reveal a very low amount of genetic polymorphism in both populations with an average observed heterozygosity of 0.6% in population A and 0.7% in population B. The two populations can be considered part of a single breeding unit on the basis of the Student test for paired observations since the differences in single-locus heterozygosity for seven polymorphic loci are not significant (P>0.70). A possible explanation of the observed low genetic polymorphism is discussed in terms of genetic adaptation, as suggested by some results obtained in studies on enzyme activity carried out at the level of the PGI locus. Springer-Verlag, 1990 Patarnello T. Dpartimento di Biologia, Università degli Studi di Padova, Via Loredan, 10, I-35100, Padova, Italy aut Bisol P. Dpartimento di Biologia, Università degli Studi di Padova, Via Loredan, 10, I-35100, Padova, Italy aut Varotto V. Dpartimento di Biologia, Università degli Studi di Padova, Via Loredan, 10, I-35100, Padova, Italy aut Fuser V. Dpartimento di Biologia, Università degli Studi di Padova, Via Loredan, 10, I-35100, Padova, Italy aut Battaglia B. Dpartimento di Biologia, Università degli Studi di Padova, Via Loredan, 10, I-35100, Padova, Italy aut Polar Biology Springer-Verlag 10/7(1990-08-01), 495-498 0722-4060 10:7<495 1990 10 300 https://doi.org/10.1007/BF00233697 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00233697 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Patarnello T. Dpartimento di Biologia, Università degli Studi di Padova, Via Loredan, 10, I-35100, Padova, Italy aut NATIONALLICENCE 700 1- Bisol P. Dpartimento di Biologia, Università degli Studi di Padova, Via Loredan, 10, I-35100, Padova, Italy aut NATIONALLICENCE 700 1- Varotto V. Dpartimento di Biologia, Università degli Studi di Padova, Via Loredan, 10, I-35100, Padova, Italy aut NATIONALLICENCE 700 1- Fuser V. Dpartimento di Biologia, Università degli Studi di Padova, Via Loredan, 10, I-35100, Padova, Italy aut NATIONALLICENCE 700 1- Battaglia B. Dpartimento di Biologia, Università degli Studi di Padova, Via Loredan, 10, I-35100, Padova, Italy aut NATIONALLICENCE 773 0- Polar Biology Springer-Verlag 10/7(1990-08-01), 495-498 0722-4060 10:7<495 1990 10 300 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer