Subunit Composition of Polymorphic Hemocyanins in the Decapod Crustaceans: Differences between Sibling Species

Radular myoglobin and protein variation within and among some littorinid species (Mollusca: Gastropoda)

“…Symondson & Walton, 1994;Mangum, 1996;Mangum & Greaves, 1996;Mangum & McKenney, 1996). Moreover the ecological and functional significance of littorinid Mb clearly needs to be investigated further as we suspect that such data may yield valuable insights as to how periwinkles interact with their environment.…”

“…Yet, such data are not a prerequisite for systematic comparisons (e.g. Macaranas et al, 1996; Mangum, 1996;Mangum & Greaves, 1996;Mangum & McKenney, 1996).…”

The molecular heterogeneity of hemocyanin: Its role in the adaptive plasticity of Crustacea

“…The clearest cases of within-species variation of Hc subunit composition are represented by the decapods Ocypodidae (Mangum, 1993b(Mangum, , 1996Callicott and Mangum, 1993;Mangum and Greaves, 1996) and amphipods (Hodgson and Spicer, 2001;Spicer and Hodgson, 2003a). In the genus Uca up to 17 polypeptide chains and 39 different subunit compositions in the oligomers have been detected among individuals of the same species, providing strong example of the extent of intra-specific phenotype heterogeneity (Mangum and Greaves, 1996).…”

“…The great heterogeneity in Hc composition among crustacean species, both in the types of subunit and in the complexity of phenotypes, has led to the concept of species specificity of subunit patterns (Reese and Mangum, 1994;Mangum and McKenney, 1996) and to its use as a discriminatory taxonomic tool for cryptic species (Mangum, 1996;Hodgson and Spicer, 2001). These studies were aimed at analyzing the Hc subunit composition in several species with particular emphasis on congeneric, recently speciated, sibling species, and their hybrids (Mangum, 1993a(Mangum, , 1996Reese and Mangum, 1994;Mangum and Greaves, 1996;Mangum and McKenney, 1996).…”

“…These studies were aimed at analyzing the Hc subunit composition in several species with particular emphasis on congeneric, recently speciated, sibling species, and their hybrids (Mangum, 1993a(Mangum, , 1996Reese and Mangum, 1994;Mangum and Greaves, 1996;Mangum and McKenney, 1996). From these studies a highly complex picture emerges.…”