Sexual dimorphism in coronis scolopendra: differential opsin expression using the transcriptome of the eye
Katherine Mae Vaccaro
University of West Florida,
Master of Science (MS), University of West Florida
2018
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Abstract
Stomatopods possess one of the most complex visual systems in the animal kingdom. Coronis scolopendra, a spearing lysiosquilloid stomatopod, exhibits extreme sexual color dimorphism; males are a light sandy brown while females are a dark olive brown. Here, the transcriptomes of the eyes of three male and three female C. scolopendra were sequenced, assembled, and compared to determine if sexual dimorphism plays a role in the opsins expressed in this species. While no differential gene expression was detected, two putatively ultraviolet-sensitive opsins were detected, a first for C. scolopendra and potentially the rest of superfamily Lysiosquilloidea. In addition to the detection of ultraviolet opsins, the rest of the C. scolopendra eye transcriptome was characterized, increasing the number of opsins known to this species.