The genome of the fire ant Solenopsis invicta.

Détails

Ressource 1Télécharger: BIB_79692FDC063A.P001.pdf (731.28 [Ko])
Etat: Public
Version: Final published version
ID Serval
serval:BIB_79692FDC063A
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
The genome of the fire ant Solenopsis invicta.
Périodique
Proceedings of the National Academy of Sciences of the United States of America
Auteur(s)
Wurm Y., Wang J., Riba-Grognuz O., Corona M., Nygaard S., Hunt B.G., Ingram K.K., Falquet L., Nipitwattanaphon M., Gotzek D., Dijkstra M.B., Oettler J., Comtesse F., Shih C.J., Wu W.J., Yang C.C., Thomas J., Beaudoing E., Pradervand S., Flegel V., Cook E.D., Fabbretti R., Stockinger H., Long L., Farmerie W.G., Oakey J., Boomsma J.J., Pamilo P., Yi S.V., Heinze J., Goodisman M.A., Farinelli L., Harshman K., Hulo N., Cerutti L., Xenarios I., Shoemaker D., Keller L.
ISSN
1091-6490 (Electronic)
ISSN-L
0027-8424
Statut éditorial
Publié
Date de publication
2011
Peer-reviewed
Oui
Volume
108
Numéro
14
Pages
5679-5684
Langue
anglais
Résumé
Ants have evolved very complex societies and are key ecosystem members. Some ants, such as the fire ant Solenopsis invicta, are also major pests. Here, we present a draft genome of S. invicta, assembled from Roche 454 and Illumina sequencing reads obtained from a focal haploid male and his brothers. We used comparative genomic methods to obtain insight into the unique features of the S. invicta genome. For example, we found that this genome harbors four adjacent copies of vitellogenin. A phylogenetic analysis revealed that an ancestral vitellogenin gene first underwent a duplication that was followed by possibly independent duplications of each of the daughter vitellogenins. The vitellogenin genes have undergone subfunctionalization with queen- and worker-specific expression, possibly reflecting differential selection acting on the queen and worker castes. Additionally, we identified more than 400 putative olfactory receptors of which at least 297 are intact. This represents the largest repertoire reported so far in insects. S. invicta also harbors an expansion of a specific family of lipid-processing genes, two putative orthologs to the transformer/feminizer sex differentiation gene, a functional DNA methylation system, and a single putative telomerase ortholog. EST data indicate that this S. invicta telomerase ortholog has at least four spliceforms that differ in their use of two sets of mutually exclusive exons. Some of these and other unique aspects of the fire ant genome are likely linked to the complex social behavior of this species.
Mots-clé
social insect, caste differences, nonmodel organism, de novo genome assembly
Pubmed
Web of science
Open Access
Oui
Création de la notice
02/02/2011 9:23
Dernière modification de la notice
20/08/2019 14:35
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