Differential transcript levels (Log₂ transformed fold changes) of six immune genes in sexually immature, mature virgin, and mated medfly, compared to mature virgin medfly transcript levels.

<p>Transcript abundances were determined in immature (1V), mature virgin (4V) and mated (4M) female (upper) and male (lower) medfly heads and abdomens. Transcript abundances are expressed as ratios are compared to mature virgin levels (4V). Broken lines indicate that transcript abundances were very low. Stars indicate significant difference in transcript abundances (*P<0.05, **P<0.01, ***P<0.001, two-tailed <i>t</i>-test on three replicates) in the pairwise comparison between immature and mature virgin flies, or mature virgin and mated flies. Lines between data points are purely for ease of graphical interpretation and do not imply a continuous relationship between data points.</p

Demographic history of Asian, Indian Ocean, American and Mediterranean Basin populations as deduced by genetic and historical data.

<p>Demographic history of Asian, Indian Ocean, American and Mediterranean Basin populations as deduced by genetic and historical data.</p

Matrix of geographic distance (km) (above diagonal) and pairwise-F_ST values (below diagonal) among wild <i>Ae</i>. <i>albopictu</i>s samples.

<p>Matrix of geographic distance (km) (above diagonal) and pairwise-F_ST values (below diagonal) among wild <i>Ae</i>. <i>albopictu</i>s samples.</p

Genetic variability estimates of ten <i>Ae</i>. <i>albopictus</i> samples from different geographical regions.

<p>n_a, mean number of alleles; n_a/n mean number of alleles/individual; n_p, number of private alleles; n_p/n mean number of private alleles/individual; <i>A</i>_p, mean frequency of private alleles; <i>H</i>_O, mean observed heterozygosity; <i>H</i>_E, mean expected heterozygosity; <i>A</i>_n, mean frequency of null alleles.</p

Graphical representation of the most likely scenario of each set of scenarios describing the dynamics of samples in newly invaded areas using ABC methods.

<p>Graphical representation of the most likely scenario of each set of scenarios describing the dynamics of samples in newly invaded areas using ABC methods.</p

Graphical representation of the most likely scenario of each set of scenarios describing the dynamics of samples within the native area using ABC methods.

<p>Graphical representation of the most likely scenario of each set of scenarios describing the dynamics of samples within the native area using ABC methods.</p

Alignments of the predicted amino acid sequences of five <i>C. capitata</i> OBPs with their putative <i>D. melanogaster</i> orthologues.

<p>Identical amino acids are shown on a dark blue background, medium and light blue backgrounds indicate positions with strongly and weakly similar properties, respectively. Conserved cysteine residues are highlighted in yellow. The signal peptide sequences are boxed. The positions of introns are indicated by triangles.</p

Posterior probabilities and 95% confidence intervals for the competing invasion scenarios of <i>Ae</i>. <i>albopictus</i> within native and newly colonised regions, as estimated by the ABC approach.

<p>Posterior probabilities and 95% confidence intervals for the competing invasion scenarios of <i>Ae</i>. <i>albopictus</i> within native and newly colonised regions, as estimated by the ABC approach.</p

Phylogenetic relationships of tephritid OBP proteins.

<p>The unrooted maximum-likelihood (log likelihood = −9096.49) tree was inferred using the Whelan and Goldman model <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0085523#pone.0085523-Whelan1" target="_blank">[85]</a> and a discrete Gamma distribution and some invariable sites. Bootstrap values greater than 50% (1000 replications) are shown. Coloured circles indicate the different OBP subfamilies.</p

<i>Aedes albopictus</i> populations sampled in areas in which the presence of this mosquito has been historically recognised.

<p>Dates refer to the first observational record in the country of the sampling sites.</p