Molecular genetic analysis of the two morphs of sea star shrimp Emphasis Type="Italic"Periclimemes soror/Emphasis Nobili, 1904, the symbionts of tropic sea stars

Two morphologically similar morphs of the Periclimemes soror shrimps were subjected to nucleotide sequence analysis of the mitochondrial COI gene fragment and highly variable nuclear fragment, D1–D2 domain of the large subunit of their ribosomal RNA genes. These shrimps are widely distributed in the Indo-West-Pacific and are obligate symbionts of sea stars. The morphs are different in color patterns, as well as in specific reaction relative to their hosts. The nucleotide sequence data obtained revealed no differentiation relative to the fragments examined.