scholarly journals Adaptive feeding in the American oyster Crassostrea virginica : Complex impacts of pulsatile flow during pseudofecal ejection events

2020 ◽  
Vol 65 (9) ◽  
pp. 2010-2023
Author(s):  
Linlin Wang ◽  
Junting Song ◽  
Hongsheng Bi ◽  
Matthew Gray ◽  
Chunlei Fan ◽  
...  
Keyword(s):  
Crassostrea Virginica ◽  
Pulsatile Flow ◽  
American Oyster

Regulation of metallothionein genes in the American oyster (Crassostrea virginica): Ontogeny and differential expression in response to different stressors

Gene ◽  
2006 ◽  
Vol 379 ◽  
pp. 156-165 ◽  
Author(s):  
Matthew J. Jenny ◽  
Gregory W. Warr ◽  
Amy H. Ringwood ◽  
David A. Baltzegar ◽  
Robert W. Chapman
Keyword(s):  
Differential Expression ◽  
Crassostrea Virginica ◽  
American Oyster

scholarly journals Post-settlement viability in the American oyster (Crassostrea virginica): an overdominant phenotype

1983 ◽  
Vol 41 (3) ◽  
pp. 259-270 ◽  
Author(s):  
E. Zouros ◽  
Shiva M. Singh ◽  
David W. Foltz ◽  
André L. Mallet
Keyword(s):  
Crassostrea Virginica ◽  
Age Groups ◽  
Natural Populations ◽  
Electrophoretic Analysis ◽  
American Oyster ◽  
Marine Molluscs ◽  
Direct Involvement ◽  
Polymorphic Loci ◽  
Enzyme Polymorphisms ◽  
Genetic Interpretation

SUMMARYThe degree of heterozygosity as determined by electrophoretic analysis of three or four polymorphic loci correlates positively with survival in age groups of the American oyster (Crassostrea virginica) collected as spat from two different natural populations. The phenomenon is shown to operate in ages from 2 weeks (post-settlement) to 3 years and appears to be general in populations of marine molluscs. The most likely explanation for this result is that heterozygosity improves survival through its effect on growth (heterozygotes grow faster). The effects of individual loci on viability are independent of each other. A direct involvement of the enzyme polymorphisms is the most probable genetic interpretation of the data, but associative overdominance cannot be excluded.

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