Differential gene expression between queens and workers in the ant Lasius niger

Détails

ID Serval
serval:BIB_181662B568B2
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Differential gene expression between queens and workers in the ant Lasius niger
Périodique
Molecular Ecology
Auteur(s)
Gräff  J., Jemielity  S., Parker  J. D., Parker  K. M., Keller  L.
Statut éditorial
Publié
Date de publication
02/2007
Volume
16
Numéro
3
Pages
675-683
Langue
anglais
Résumé
Ants and other social insects forming large societies are generally characterized by marked reproductive division of labour. Queens largely monopolize reproduction whereas workers have little reproductive potential. In addition, some social insect species show tremendous lifespan differences between the queen and worker caste. Remarkably, queens and workers are usually genotypically identical, meaning that any phenotypic differences between the two castes arise from caste-specific gene expression. Using a combination of differential display, microarrays and reverse Northern blots, we found 16 genes that were differentially expressed between adult queens and workers in the ant Lasius niger, a species with highly pronounced reproductive division of labour and a several-fold lifespan difference between queens and workers. RNA ligase mediated rapid amplification of cDNA ends (RLM-RACE) and gene walking were used to further characterize these genes. On the basis of the molecular function of their nearest homologues, three genes appear to be involved in reproductive division of labour. Another three genes, which were exclusively overexpressed in queens, are possibly involved in the maintenance and repair of the soma, a candidate mechanism for lifespan determination. In-depth functional analyses of these genes are now needed to reveal their exact role.
Mots-clé
ageing, caste-specific gene expression, immune defence, Lasius niger, reproductive division of labour, somatic maintenance
Création de la notice
19/11/2007 10:39
Dernière modification de la notice
20/08/2019 13:48
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