Habitat phenotyping of two sub-Antarctic flies by metabolic fingerprinting: evidence for a species outside its home?

Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
M LaparieD Renault

Abstract

Metabolic fingerprinting can elucidate rearrangements of metabolic networks in organisms exposed to various environmental conditions. Maintenance of organismal performance occurs by alterations in metabolic fluxes and pathways, resulting in habitat-specific metabolic signatures. Several insects of sub-Antarctic Islands, including the wingless flies Anatalanta aptera and Calycopteryx moseleyi, are exposed to saline organic matter accumulated along littoral margins. However, C. moseleyi has long been considered restricted to a habitat of lower salinity, the Kerguelen cabbage. High C. moseleyi densities identified in saline decaying seaweeds are intriguing, and may involve osmoregulatory adjustments including accumulation of osmoprotectants. In the present work, we examined quantitative metabotypes (metabolic phenotypes) among wild C. moseleyi individuals from seaweeds versus non-saline Kerguelen cabbages. They were compared to metabotypes from wild A. aptera, a common fly on seaweed. Statistical procedures designed to magnify between-class differences failed to clearly separate C. moseleyi metabotypes from cabbage and seaweed, despite contrasted morphotypes, diets, and salinities. A. aptera exhibited higher glycerol, inositol, tr...Continue Reading

References

Dec 1, 1970·Systematic Zoology·G J Nelson
Sep 1, 1993·Phytochemistry·J K NielsenM K Petersen
Jun 14, 2003·Journal of Insect Physiology·P Y Scaraffia, M A Wells
Oct 26, 2005·Environmental Pollution·Ben J KeffordDayanthi Nugegoda
Jan 24, 2006·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·D RenaultP Vernon
Feb 14, 2008·The Plant Journal : for Cell and Molecular Biology·Oliver FiehnBasil Nikolau

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Citations

Mar 18, 2016·Annual Review of Entomology·Steven L Chown, Peter Convey
Jan 26, 2013·The Journal of Experimental Biology·F Mermillod-BlondinC J Douady

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