New techniques for creating parthenogenetic larvae of the sea urchin Lytechinus pictus for gene expression studies

Background Sea urchins are model organisms for studying the spatial-temporal control of gene activity during development. The Southern California species, Lytechinus pictus, has a sequenced genome and can be raised in the laboratory from egg to egg in 4 to 5 months. Results Here, we present new techniques for generating parthenogenetic larvae of this species and include a gallery of photomicrographs of morphologically abnormal larvae that could be used for transcriptomic analysis. Conclusions Comparison of gene expression in parthenogenotes to larvae produced by fertilization could provide novel insights into gene expression controls contributed by sperm in this important model organism. Knowledge gained from transcriptomics of sea urchin parthenogenotes could contribute to parthenogenetic studies of mammalian embryos.

Automated summary

The study introduces new techniques for generating parthenogenetic larvae of the Southern California sea urchin species, Lytechinus pictus. The researchers present a gallery of photomicrographs of morphologically abnormal larvae for transcriptomic analysis, aiming to compare gene expression control between parthenogenotes and fertilization-derived larvae for insights into gene regulation mechanisms in this model organism. Knowledge gained from transcriptomics of sea urchin parthenogenotes could potentially contribute to parthenogenetic studies in mammalian embryos.