Large genomes among caridean shrimp.
Recent genome size estimates for Arctic amphipods have revealed the largest genomes known in the Crustacea. Here we provide additional data for 7 species of caridean shrimp collected from the Canadian Arctic and the Gulf of St. Lawrence. Genome sizes were estimated by flow cytometry and haploid C-values ranged from 8.53 +/- 0.30 pg in Pandalus montagui (Pandalidae) to 40.89 +/- 1.23 pg in Sclerocrangon ferox (Crangonidae). The value for S. ferox represents the largest decapod genome yet recorded and indicates a 38-fold variation in genome size within this order. These data suggest that large genomes may be relatively common in Arctic crustaceans, and underline the need for further comparative studies.
Rees
David J
DJ
Département de Biologie, Université du Québec à Rimouski, Rimouski, Canada. david_rees@mac.com
Belzile
Claude
C
Glémet
Hélène
H
Dufresne
France
F
D000818:Animals; D001110:Arctic Regions; D003445:Crustacea / Q000235:genetics*; D005260:Female; D016678:Genome; D010058:Oviposition; D033541:Palaemonidae / Q000145:classification / Q000235:genetics* / Q000254:growth & development; D011792:Quebec