Drosophila of the repleta group have a duplication of the gene which encodes alcohol dehydrogenase (ADH). We report the nucleotide sequence of an 8.4-kb region of genomic DNA of Drosophila hydei which includes the entire Adh region. Analysis of this sequence reveals similarity in organization to the Adh region of Drosophila mojavensis and Drosophila mulleri of the mulleri subgroup, with three g...

We compared whole transcriptome variation in six pre-adult stages and seven adult female ages in two populations of cactophilic Drosophila mojavensis reared on two host plants to understand how differences in gene expression influence standing life history variation. We used singular value decomposition (SVD) to identify dominant trajectories of life cycle gene expression variation, performed p...

Divergent selection between environments can result in changes to the behavior of an organism. In many insects, volatile compounds are a primary means by which host plants are recognized and shifts in plant availability can result in changes to host preference. Both the plant substrate and microorganisms can influence this behavior, and host plant choice can have an impact on the performance of...

We performed a quantitative trait locus (QTL) analysis of epicuticular hydrocarbon variation in 1650 F(2) males from crosses of Baja California and mainland Mexico populations of Drosophila mojavensis cultured on two major host cacti. Principal component (PC) analysis revealed five PCs that accounted for 82% of the total epicuticular hydrocarbon variation. Courtship trials with mainland females...

These centers are: the Agencourt Bioscience Corporation [2] for the Drosophila ananassae, Drosophila mojavensis, and Drosophila virilis sequence data, the Genome Sequencing Center at the Washington University School of Medicine [3] for the Drosophila yakuba, Drosophila simulans, and Caernorhabditis remanei sequence data, the Human Genome Sequencing Center at the Baylor College of Medicine [4] f...

Genetic, ecological and morphological differences among populations of the cactophilic Drosophila mojavensis from southwestern USA and northwestern Mexico, with descriptions of two new subspecies E. Pfeiler a; S. Castrezana b; L. K. Reed c; T. A. Markow d a Centro de Investigación en Alimentación y Desarrollo, Guaymas, Sonora, México b San Diego Drosophila Stock Center, University of California...

BACKGROUND In Africa, there are several problems with the specific identification of bacteria. Recently, MALDI-TOF mass spectrometry has become a powerful tool for the routine microbial identification in many clinical laboratories. METHODOLOGY/PRINCIPAL FINDINGS This study was conducted using feces from 347 individuals (162 with diarrhea and 185 without diarrhea) sampled in health centers in ...

A more than 10-fold difference in the specificity and catalytic efficiency for 1-naphthyl esters was measured between two allozymes of esterase-4 from Drosophila mojavensis. This difference is mainly caused by a difference in the affinity for the 1-naphthyl esters. The amino acid compositions of the allozymes are not significantly different, which means that the difference in primary structure ...