Spermatocyte chromosome analysis of Helicella virgata (Pulmonata: Helicidae): silver-stained and C-banded chromosomes.
Chromosome numbers of the snail Helicella virgata from the fields of Castellammare del Golfo (Sicily) are n = 26 and 2n = 52. Silver-staining analyses of testicular cells suggest that both mitotic and meiotic chromosomes are involved in nucleolus organization. A within-individual variability in NOR-banding pattern is present in each of the 20 specimens analyzed.
Vitturi
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Institute of Zoology, University of Palermo, Italy.
Colombera
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Catalano
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Amico
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FP
D000818:Animals; D002871:Chromosome Banding; D002875:Chromosomes; D007621:Karyotyping; D008297:Male; D008540:Meiosis; D008938:Mitosis; D010078:Oxazines; D012908:Snails / Q000235:genetics*; D013090:Spermatocytes / Q000166:cytology / Q000648:ultrastructure*; D013091:Spermatogenesis; D013194:Staining and Labeling
D010078:Oxazines; C002313:PAcein