Identifying biochemical phenotypic differences between cryptic species

Autor: Elma Lahive, Claus Svendsen, Gabriela A. Pinto-Juma, A. John Morgan, Jacob G. Bundy, Robert K. Donnelly, Michael William Bruford, David J. Spurgeon, Jie Hao, Peter Kille, Manuel Liebeke, Rachael M. Madison, Timothy M. D. Ebbels
Rok vydání: 2014
Předmět:
Zdroj: Biology Letters. 10:20140615
ISSN: 1744-957X
1744-9561
DOI: 10.1098/rsbl.2014.0615
Popis: Molecular genetic methods can distinguish divergent evolutionary lineages in what previously appeared to be single species, but it is not always clear what functional differences exist between such cryptic species. We used a metabolomic approach to profile biochemical phenotype (metabotype) differences between two putative cryptic species of the earthwormLumbricus rubellus. There were no straightforward metabolite biomarkers of lineage, i.e. no metabolites that were always at higher concentration in one lineage. Multivariate methods, however, identified a small number of metabolites that together helped distinguish the lineages, including uncommon metabolites such asNε-trimethyllysine, which is not usually found at high concentrations. This approach could be useful for characterizing functional trait differences, especially as it is applicable to essentially any species group, irrespective of its genome sequencing status.
Databáze: OpenAIRE