51813_Sturgeon biodioversity an.PDF

sue). Our data were polarized using other Actinop- found (Brown et al. 1992b, 1993). Fifty percent ofA. terygii,PolypterusandAmi ...

individuals used for DNA content measurements by Birstein et al. (1993). Also, we isolated DNA from alcohol-Fixed samples of mus ...

DNA sequence alignment and phylogenetic analysis We used equal weights for all nucleotide positions in all analyses. When multip ...

quencing primers in our analyses, 18sai0.7 and there are three nucleotides, TCG, whereas in tele- 18sai0.79. These primers are i ...

tions of codons. For comparable lengths of the 16S and 12S sequences, the cytochromebgene for the species examined by us has fro ...

Figure4.Phylogenetically informative characters (nucleotide composition at variable sites) for four gene regions studied. Number ...

formation results from the small number of mole- cular characters that are pertinent to the Huso-Aci- penser sister group hypoth ...

(n) Species Croup of 8 2 82 16 2 4 1 41 8 1 4 1 4 3 4 81 81 16 4 4 4(?) 4 2 2 Acipenser (n) Species Croup of Acipenser 8 2 82 16 ...

A. brevirostrum; and (4) both clades show transat- 1991a, Hedges et al. 1993a). One surprising result of lantic relationships fo ...

1993, 1997): Huso dauricus was a sister-species to the genus Acipenserinstead of being basal to all aci- penseriforms, and Scaph ...

References cited Asahida, T. & H. Ida. 1989. Karyological notes on four sharks in the order Carcharhiniformes. Japan. J. Ich ...

In:E.A. Zimmer, T.J. White, R.L. Cann & A.C. Wilson (ed.) Methods in Enzymology, Vol. 224, Molecular Evolution: Pro- ducing ...

Golubtsov, A.S. &E. Yu. Krysanov. 1993. Karyological study of some cyprinid species from Ethiopia. The ploidy differences be ...

Nelson, J.S. 1994. Fishes of the World, 3rd edition. John Wiley & Nesov, L.A. & M.N. Kaznyshkin. 1983. New sturgeons fro ...

shovelnose sturgeon (Scaphirhynchus albus andS. platoryn - chus). Copeia 1983: 696–700. Piropovskii, M.I., L.I. Sokolov & V. ...

1, Pt. II, General Introduction to Fishes, Acipenseriformes, quence comparisons. Proc. Nat. Acad. Sci. USA 89: 6090– AULA-Verlag ...

Portraits of a juvenileHusohuso 23 cm TL from the Ryal Ontario Museum collection (given originally as Caspian Sea fish to Montre ...

Environmental Bioiogy of Fishes 48 : 1 57–163, 1997. © 1997 Kluwer Academic Publishers. Printed in the NetherIands. How many spe ...

which have quickly eliminated sturgeons from cer- tain river basins (see discussions in this volume by Bacalbasa-Dobrovici 1997, ...

cies could be restricted only to Japan and not inhab- iting Asian continental waters (Artyukhin & An- dronov l990). There ar ...