Abstract
The monomeric subunit composition of the O₂ carrier hemocyanin was investigated in three pairs of sibling species in the fiddler crab genus Uca and a complex of two sibling species and their postulated hybrid in the stone crab genus Menippe. All but one species were polymorphic, though to quite different degrees. None of the intraspecific variation resembled that expected of different gene products encoded at the same locus. Even when the intraspecific variation was great, however, the electrophoretic phenotype was absolutely diagnostic of a species, suggesting that the crustacean hemocyanins diverged early in speciation. The hybrid stone crabs, however, did not differ significantly from one of their parent species.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
