Evolutionary relationships of Pemphigus and allied genera (Hemiptera: Aphididae: Eriosomatinae) and their primary endosymbiont, Buchnera aphidicola

Aphids harbor primary endosymbionts, Buchnera aphidicola, in specialized cells within their body cavities. Aphids and Buchnera have strict mutualistic relationships in nutrition exchange. This ancient association has received much attention from researchers who are interested in endosymbiotic evolut...

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Bibliographic Details
Published in:Insect science 2014-06, Vol.21 (3), p.301-312
Main Authors: Liu, Lin, Li, Xing-Yi, Huang, Xiao-Lei, Qiao, Ge-Xia
Format: Article
Language:English
Subjects:
Animals
Aphididae
Aphids - genetics
Aphids - growth & development
Aphids - microbiology
Aphids - physiology
Buchnera
Buchnera - genetics
Buchnera - physiology
Buchnera aphidicola
codivergence
Evolution
Evolution, Molecular
gall
Genes, Bacterial - genetics
Genes, Insect - genetics
Hemiptera
Insects
parallel evolution
phylogenetic conservatism
Phylogenetics
Phylogeny
Populus
Studies
Symbiosis
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Summary:Aphids harbor primary endosymbionts, Buchnera aphidicola, in specialized cells within their body cavities. Aphids and Buchnera have strict mutualistic relationships in nutrition exchange. This ancient association has received much attention from researchers who are interested in endosymbiotic evolution. Previous studies have found parallel phylogenetic relationships between non‐galling aphids and Buchnera at lower taxonomic levels (genus, species). To understand whether relatively isolated habitats such as galls have effect on the parallel relationships between aphids and Buchnera, the present paper investigated the phylogenetic relationships of gall aphids from Pemphigus and allied genera, which induce pseudo‐galls or galls on Populus spp. (poplar) and Buchnera. The molecular phylogenies inferred from three aphid genes (COI, COII and EF‐1α) and two Buchnera genes (gnd, 16S rRNA gene) indicated significant congruence between aphids and Buchnera at generic as well as interspecific levels. Interestingly, both aphid and Buchnera phylogenies supported three main clades corresponding to the galling locations of aphids, namely leaf, the joint of leaf blade and petiole, and branch of the host plant. The results suggest phylogenetic conservatism of gall characters, which indicates gall characters are more strongly affected by aphid phylogeny, rather than host plants.
ISSN:1672-9609
1744-7917
DOI:10.1111/1744-7917.12113