New Zealand Journal of Marine and Freshwater Research abstracts
Spermatocyte chromosomes and genome size in the sacoglossan slug Stiliger
felinus (Hutton 1882) (Gastropoda: Opisthobranchia) from New Zealand
A. LIBERTINI
F. MENEGHETTI
CNR, Institute of Marine Biology
Riva 7 Martiri 1364/A
I-30122 Venice, Italy
M. PANOZZO
National Institute of Cancer Research,
Biotechnological Section
via Gattamelata 64
I-35128 Padova, Italy
Abstract A karyological investigation was carried out on the
testis cells of the tidal pool sacoglossan sea slug Stiliger felinus
from New Zealand. The haploid chromosome set was characterised by 14 elements
where median-, subterminal-, and terminal-centromere chromosomes were present.
Using flow cytometric analysis, haploid genome size of the species was found to
be 2.8 pg: the highest value encountered in the subclass Opisthobranchia.
Stiliger felinus differs from other Stiligeridae in chromosome number
and frequency of cross-shaped bivalents in spermatocytal metaphase I plates.
Keywords Stiliger felinus; Opisthobranchia; karyology;
chromosome number; genome size
New Zealand Journal of Marine and Freshwater Research, 1996: Vol. 30:
193-196
0028-8330/96/3002-0193 $2.50/0 (c) The Royal Society of New Zealand
1996
PDF file of entire paper: medium quality (545K); (scanned from paper original: notes about this process)
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