LOSP: A putative marker of parasperm lineage in male reproductive system of the prosobranch mollusk Littorina obtusata

Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
Arseniy A LobovAndrey I Granovitch

Abstract

Reproductive isolation is the key attribute of biological species and establishment of the reproductive barriers is an essential event for speciation. Among the mechanisms of reproductive isolation, gamete incompatibility due to the variability of gamete interaction proteins may drive fast divergence even in sympatry. However, the number of available models to study this phenomenon is limited. In case of internally fertilized invertebrates, models to study gamete incompatibility and sperm competition mechanisms are restricted to a single taxon: insects. Here, we propose a group of closely related Littorina species as a new model for such studies. Particularly since periwinkles are already thoroughly studied in terms of morphology, physiology, ecology, phylogeny, and ecological speciation. Earlier, we have identified the first species-specific Littorina sperm protein (LOSP) with no known conservative domains or homologies. LOSP is relatively abundant component of sperm extracts and might be involved in gamete incompatibility. Here, we characterize its definitive localization and mRNA expression pattern in the male reproductive system by immunocytochemistry and RNA in situ hybridization. We demonstrate that LOSP distribution is l...Continue Reading

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Citations

May 31, 2020·International Journal of Molecular Sciences·Sergei Iu DeminNatalia A Mikhailova
Feb 26, 2020·PeerJ·Arina L MaltsevaAndrei I Granovitch
Mar 13, 2021·Scientific Reports·Arina L MaltsevaAndrei I Granovitch

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