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RESEARCH PRODUCT
Karyotypes, Banding Patterns and Nuclear DNA Content inCrepidula unguiformisLamarck, 1822, andNaticarius stercusmuscarum(Gmelin, 1791) (Mollusca, Caenogastropoda)
Angelo LibertiniArmando GregoriniRoberto VitturiMariastella Colombasubject
GeneticsCaenogastropodaChromosomeNaticidaeKaryotypeBiologybiology.organism_classificationGenomeNuclear DNAEvolutionary biologyAnimal Science and ZoologyPloidyGenome sizeEcology Evolution Behavior and Systematicsdescription
ABSTRACT The chromosome complement and the nuclear DNA content in two caenogastropod species from the Mediterranean Sea, Crepidula unguiformis (Calyptraeidae) and Naticarius stercusmuscarum (Naticidae), were investigated by the application of both classical and molecular cytogenetic methods. Despite the constancy of haploid chromosome numbers (n = 17 in both species), C. unguiformis and N. stercusmuscarum show genome sizes amounting to 6.36 and 2.63 pg, respectively. Moreover, while N. stercusmuscarum resembles cytogenetically the other neotaenioglossan caenogastropods studied so far, C. unguiformis differs in: (i) number and location of rDNA clusters (ii), composition of telomeric repeats, and (iii) genome size, thus suggesting a peculiar karyotypical evolution undergone by this species.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-03-01 | Malacologia |