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Divergence between Drosophila santomea and allopatric or sympatric populations of D. yakuba using paralogous amylase genes and migration scenarios along the Cameroon volcanic line
The relationship between the geographical origin of the various strains and the patterns of mating and phylogeny is described, focusing on the evolution of D. santomea and its relationship to other species and their niches. Expand
Grafting the molecular phylogenetic tree with morphological branches to reconstruct the evolutionary history of the genus Zaprionus (Diptera: Drosophilidae).
A molecular phylogeny for the drosophilid genus Zaprionus was inferred using a mitochondrial (CO-II) and a nuclear (Amyrel) gene using 22 available species. The combined molecular tree does notExpand
Horizontal gene transfer from Eukarya to Bacteria and domain shuffling: the α-amylase model
The similarities in the extra C-terminal domains (different from both the α-amylase domain C and the starch-binding domain), when present, also suggest interkingdom as well as intragenomic shuffling. Expand
Evolution of a desaturase involved in female pheromonal cuticular hydrocarbon biosynthesis and courtship behavior in Drosophila.
Differences could explain the functional polymorphism of desatF observed between both species, contributing to different cuticular hydrocarbon profiles, that constitute an effective barrier between species. Expand
Temperature adaptations in psychrophilic, mesophilic and thermophilic chloride-dependent alpha-amylases.
A striking continuum in the functional properties of these enzymes coupled to their structural stability and related to the thermal regime of the source organism is reported, appearing to be a compromise between the requirement for a stable native state and the proper structural dynamics to sustain the function at the environmental/physiological temperatures. Expand
Amyrel, a paralogous gene of the amylase gene family in Drosophila melanogaster and the Sophophora subgenus.
A gene from Drosophila melanogaster related to the alpha-amylase gene Amy, which exists as a single copy, was named Amyrel and it is suggested that this gene could result from a duplication of Amy followed by accelerated and selected divergence toward a new adaptation. Expand
Polyphyly of the Zaprionus genus group (Diptera: Drosophilidae).
The Bayesian tree inferred from concatenated amino acid sequences of the two genes strongly suggests the polyphyly of the Zaprionus genus group and of each of the genera ZapRionus and Phorticella and the necessity of taxonomic revisions for some relevant genera and species groups included within the genus Drosophila. Expand
Gene make-up: rapid and massive intron gains after horizontal transfer of a bacterial α-amylase gene to Basidiomycetes
It is suggested that the new gene transferred from an Actinobacterium to an ancestor of Agaricomycotina was shaped to comply with requirements of the splicing machinery, such as short exon and intron sizes, in order to be correctly processed. Expand
Where do animal α‐amylases come from? An interkingdom trip
It is found that the Dictyo‐type α‐amylase was shared not only by these non‐Bilaterian animals, but also by other Amoebozoa, Choanoflagellates, and Fungi, suggesting that horizontal gene transfers may have occurred among Eukaryotes. Expand
Phylogenetic Distribution of Intron Positions in Alpha-Amylase Genes of Bilateria Suggests Numerous Gains and Losses
It is shown that intron losses outnumbered gains in recent periods, but that “resets” of intron positions occurred at the origin of several phyla, including vertebrates, and rates of gain and loss appear to be positively correlated. Expand