Publications
| evolutionary relationships of drosophila mojavensis geographic host races and their sister species drosophila arizonae. | the cactophilic drosophila mojavensis species group living in the deserts and dry tropical forests of the southwestern united states and mexico provides a valuable system for studies in diversification and speciation. rigorous studies of the relationships between host races of d. mojavensis and the relationships among the members of the species group (d. mojavensis, drosophila arizona, and drosophila navojoa) are lacking. we used mitochondrial co1 sequence data to address the phylogenetics and p ... | 2007 | 17305857 |
| activity variation in alcohol dehydrogenase paralogs is associated with adaptation to cactus host use in cactophilic drosophila. | drosophila mojavensis and drosophila arizonae are species of cactophilic flies that share a recent duplication of the alcohol dehydrogenase (adh) locus. one paralog (adh-2) is expressed in adult tissues and the other (adh-1) in larvae and ovaries. enzyme activity measurements of the adh-2 amino acid polymorphism in d. mojavensis suggest that the fast allozyme allele has a higher activity on 2-propanol than 1-propanol. the fast allele was found at highest frequency in populations that utilize hos ... | 2005 | 15910339 |