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Related Experiment Video

Updated: Mar 19, 2026

Ablation of a Single Cell From Eight-cell Embryos of the Amphipod Crustacean Parhyale hawaiensis
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Exploring developmental gene toolkit and associated pathways in a potential new model crustacean using transcriptomic

Michael L Jaramillo1, Frank Guzman2, Christian L B Paese1

  • 1Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil.

Development Genes and Evolution
|June 10, 2016
PubMed
Summary

This study characterizes the embryonic transcriptome of Macrobrachium olfersi, identifying key developmental genes. This research provides crucial molecular genetic insights for this crustacean model organism.

Keywords:
Development-related geneFreshwater prawnMacrobrachium olfersiOrganogenesis/morphogenesisRNA-seqRT-PCR

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Area of Science:

  • Developmental Biology
  • Molecular Genetics
  • Crustacean Research

Background:

  • Crustaceans are a diverse invertebrate group with varied embryonic development.
  • Molecular genetics of embryonic development is poorly understood in crustaceans with short germ-band development, like Macrobrachium olfersi.
  • Macrobrachium olfersi presents potential as a model for developmental, evolutionary, and environmental studies.

Purpose of the Study:

  • To generate sequence data of Macrobrachium olfersi from an embryonic developmental perspective.
  • To identify genes and pathways regulating embryonic development in this species.
  • To establish Macrobrachium olfersi as a model for developmental biology.

Main Methods:

  • Performed de novo assembly and annotation of the embryonic transcriptome.
  • Utilized pooling strategy of total RNA and paired-end Illumina sequencing.
  • Employed multiple k-mers for assembly and RT-PCR for validation.

Main Results:

  • Generated 25,636,097 pair reads, identifying 99,751 unigenes.
  • Identified 2142 unigenes in the developmental process category, including 35 homologs of embryonic development toolkit genes.
  • Confirmed the presence of key developmental pathways (e.g., Wnt, Hox, MAPK) and validated eight genes via RT-PCR.

Conclusions:

  • The study provides a foundational transcriptomic resource for Macrobrachium olfersi embryonic development.
  • Identified conserved embryonic development toolkit genes and pathways, offering insights into crustacean embryogenesis.
  • Demonstrates the utility of transcriptomic analysis for studying invertebrate development and validates its findings through RT-PCR.