The impetus for this book arose out of my previous book, The Evolution of Life Histories
(Roff, 1992). In that book I presented a single chapter on quanti tative genetic theory …

A vertebrate securin (vSecurin) was identified on the basis of its biochemical analogy to the
Pds1p protein of budding yeast and the Cut2p protein of fission yeast. The vSecurin protein …

Studies of phenotypic selection document directional selection in many natural populations.
What factors reduce total directional selection and the cumulative evolutionary responses to …

The validity of the assumption, that laboratory estimates of heritabilities will tend to
overestimate natural heritabilities, due to a reduction in environmental variability and thus …

Although polymorphic inversions in Drosophila are very common, the origin of these
chromosomal rearrangements is unclear. The breakpoints of the cosmopolitan inversion 2j …

Two sets of four replicate lines of Drosophila melanogaster were selected for large and
small thorax with controls. F, progeny of crosses between the selected lines within each size …

Morphological correlates of male mating success were assessed in natural populations of
three Drosophila species. Mating males in D. simulans were larger than single males but …

Chromosomal inversions are thought to confer a selective advantage in alternative habitats
by protecting co-adapted alleles from recombination. The frequencies of two inversions (2L …

Animal mating systems are typically described and classified by the number of mates
acquired by members ttf the species, monogamy to polygyny and polyan-dry, and by the …

We measured the effect of larval density on thorax length, development time, sex ratio and a
measure of total fitness, using strains of Drosophila melanogaster artificially selected for …