Chemical composition of precloacal secretions of two Liolaemus fabiani populations: Are they different?

Claudio M. Escobar, Carlos A. Escobar, Antonieta Labra, Hermann M. Niemeyer

Resultado de la investigación: Article

66 Citas (Scopus)

Resumen

The chemical composition of secretions of precloacal pores from two populations of the lizard Liolaemusfabiani (Puilar and Punta-Brava) were compared. This is an endemic species from the Atacama Salt Flat (26°46'S 68° 14'W; 2400 m) in northern Chile, restricted to the internal lakes of the salt flat. Interpopulational differences in the chemical composition of the secretions were expected considering that populations have genetic differences and are subject to different thermal conditions. By using GC-MS, a total of 44 compounds were found belonging to three categories: n-alkanes, long-chain carboxylic acids, and steroids. Six compounds were found in all the individuals studied: tetradecanoic, pentadecanoic, hexadecanoic, hexadecenoic, octadecanoic, and octadecenoic acids. The secretions of both populations had similar types and proportions of the different compounds, except for cholesterol and hexanoic acid, which were more abundant in the Puilar population. These differences can be ascribed to the different environmental conditions to which populations are subjected. The adaptive meaning of these differences is discussed.

Idioma originalEnglish
Páginas (desde-hasta)629-638
Número de páginas10
PublicaciónJournal of Chemical Ecology
Volumen29
N.º3
DOI
EstadoPublished - 1 mar 2003

Huella dactilar

secretion
Salts
chemical composition
Stearic Acids
Oleic Acids
Alkanes
Carboxylic Acids
Chemical analysis
Population
salt
Lakes
acid
Steroids
Cholesterol
carboxylic acid
steroid
salts
endemic species
lizard
alkane

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Biochemistry

Citar esto

Escobar, Claudio M. ; Escobar, Carlos A. ; Labra, Antonieta ; Niemeyer, Hermann M. / Chemical composition of precloacal secretions of two Liolaemus fabiani populations : Are they different?. En: Journal of Chemical Ecology. 2003 ; Vol. 29, N.º 3. pp. 629-638.
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abstract = "The chemical composition of secretions of precloacal pores from two populations of the lizard Liolaemusfabiani (Puilar and Punta-Brava) were compared. This is an endemic species from the Atacama Salt Flat (26°46'S 68° 14'W; 2400 m) in northern Chile, restricted to the internal lakes of the salt flat. Interpopulational differences in the chemical composition of the secretions were expected considering that populations have genetic differences and are subject to different thermal conditions. By using GC-MS, a total of 44 compounds were found belonging to three categories: n-alkanes, long-chain carboxylic acids, and steroids. Six compounds were found in all the individuals studied: tetradecanoic, pentadecanoic, hexadecanoic, hexadecenoic, octadecanoic, and octadecenoic acids. The secretions of both populations had similar types and proportions of the different compounds, except for cholesterol and hexanoic acid, which were more abundant in the Puilar population. These differences can be ascribed to the different environmental conditions to which populations are subjected. The adaptive meaning of these differences is discussed.",
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Chemical composition of precloacal secretions of two Liolaemus fabiani populations : Are they different? / Escobar, Claudio M.; Escobar, Carlos A.; Labra, Antonieta; Niemeyer, Hermann M.

En: Journal of Chemical Ecology, Vol. 29, N.º 3, 01.03.2003, p. 629-638.

Resultado de la investigación: Article

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