Data Catalog | Emodnet Biology

Data Catalog

[ report an error in this record ]basket (0): add | show Print this page

Genetic variation, systematics and distribution of the venerid clam Chamelea gallina
Backeljau, T.; Bouchet, P.; Gofas, S.; De Bruyn, L. (1994). Genetic variation, systematics and distribution of the venerid clam Chamelea gallina. J. Mar. Biol. Ass. U.K. 74: 211-223
In: Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Cambridge. ISSN 0025-3154; e-ISSN 1469-7769, more
Peer reviewed article  

Available in  Authors 
    VLIZ: Open Repository 222283 [ OMA ]

Keywords

Authors  Top 

Abstract
    Two morphotypes of the venerid bivalve Chamelea gallina (L.), viz. C. gallina s.s. and C. striatula, were electrophoretically compared at seven polymorphic enzyme loci. In three populations from the Ría Formosa (southern Portugal), both morphotypes occurred sympatrically. Analyses of genotype frequencies in these mixed populations revealed departures from Hardy-Weinberg expectations at nearly all loci. These deviations were mainly attributable to a Wahlund effect, caused by mixing the two morphotypes. Nei's mean unbiased genetic distance between the two forms was D=1·138, while the mean genetic distances between populations within morphotypes were D=0·083 in C. gallina s.s. and D=0·229 in C. striatula. It is therefore concluded that C. gallina and C. striatula are reproductively isolated (biological) species, the geographical distribution of which is outlined.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors 
 

FOLLOW US

Website hosted and developed by VLIZ

Copyright 2017 - EMODnet - THE EUROPEAN MARINE OBSERVATION AND DATA NETWORK