Habitat choice in the Drosophila affinis subgroup

Further Observations on Polymegaly in Species of the Drosophila affinis Subgroup

Carbon dioxide sensitivity in Drosophila affinis and Drosophila athabasca.

ENSITIVITY to carbon dioxide in Drosophila melanogaster, discovered in 1937 by L’HfiRITIER and TEISSIER, has been the object of considerable research by L’HBRITIER and his co-workers in France (L’H~~RITIER 1948, 1951, 1958). Since ‘no study had previously been made in species other than D. melanogaster, it was decided to investigate the occurrence of CO, sensitivity in several of the American D...

Mitochondrial DNA evolution in the Montium-species subgroup of Drosophila.

Mitochondrial DNA (mtDNA) restriction-site maps for six species (10 strains) of the Drosophila montium subgroup were established. A total of 50 restriction sites were mapped, corresponding to 1.67% of the mtDNA genome. On the basis of differences in the restriction sites, nucleotide divergence (delta) was calculated for each pair of species (strains), and phylogenetic trees were constructed by ...

Evolutionary mechanisms of habitat invasions, using the copepod Eurytemora affinis as a model system

The study of the copepod Eurytemora affinis has provided unprecedented insights into mechanisms of invasive success. In this invited review, I summarize a subset of work from my laboratory to highlight key insights gained from studying E. affinis as a model system. Invasive species with brackish origins are overrepresented in freshwater habitats. The copepod E. affinis is an example of such a b...

Genetic Data on Drosophila Affinis, with a Discussion of the Relationships in the Subgenus Sophophora.

ROSOPHILA af inis Sturtevant is a member of the subgenus Sophophora (STURTEVANT 1939), closely related to D. athabasca, azteca, algonquin, narragansett, and Seminole (STURTEVANT and DOBZHANSKY 1936b). Cytologically, all the members of this group (Seminole has not been examined) are aberrant in the subgenus in that they have-in addition to a large V-shaped X chromosome and a small dot-like autos...