Written in English
|The Physical Object|
|Number of Pages||53|
Populations of Drosophila melanogaster were maintained for 36 generations in r‐ and K‐selected environments in order to test the life‐history predictions of theories on density‐dependent the r‐selection environment, populations were reduced to low densities by density‐independent adult mortality, whereas populations in the K‐selection environment were maintained at Cited by: Natural Selection on the Humoral Immune Response. The D. melanogaster humoral antimicrobial defense  is regulated by pattern recognition receptors (PRRs) such as peptidoglycan recognition proteins (PGRPs) and Gram-negative binding proteins (GNBPs).These PRRs are exquisitely sensitive to ubiquitous and highly conserved microbial cell wall components such as bacterial peptidoglycans and Cited by: An artificial selection experiment designed to explore the evolution of resistance to a fungal pathogen, Beauveria bassiana, in Drosophila melanogaster is Cited by: To date, in addition to Drosophila, the effects of natural selection on genome evolution have been studied primarily in primates, Arabidopsis, and yeast. These differ substantially in their genome sizes, ranging from ∼12 Mb in yeast to ∼ Mb in A. thaliana and D. melanogaster .
For Drosophila melanogaster, genome and transcriptome data from inbred lines derived from a natural population in the state of North Carolina, USA, are stored in the Drosophila Genetic Reference Panel (DGRP), a community resource for analysis of population genomics. The database contains whole-genome sequences of individuals from a natural. Giesel J.T., Murphy P., Manlove M. () An Investigation of the Effects of Temperature on the Genetic Organization of Life History Indices in Three Populations of Drosophila melanogaster. In: Dingle H., Hegmann J.P. (eds) Evolution and Genetics of Life Histories. Abstract: 1. Density-dependent natural selection and age-specific natural selection are important determinants of life-history evolution. A variety of laboratory populations of Drosophila melanogaster have been created to study the effects of these selection mechanisms.. 2. Tauber, E. et al. Natural selection favors a newly derived timeless allele in Drosophila melanogaster. Science , – (). CAS Google Scholar.
NATURAL SELECTION IN DROSOPHILA MELANOGASTER UNDER LABORATORY CONDITIONS 1 I. LUDWIN 2 Received March 1, INTRODUCTION The experiment here reported is an investigation into the effect of natural selection and genetic drift upon the fre-quency of four sex-linked genes either alone or in all possible combinations in. The Drosophila melanogaster genome includes 18 different genes that encode members of the nuclear receptor superfamily, a modest number compared to some invertebrate species such as Caenorhabditis (Table ).A large number of Drosophila hormone receptors (DHRs) have been identified and named based on their deduced amino acid sequence (e.g., DHR38, DHR78, etc.). An assessment of the effects of competitive behaviour and sex on seven selected life history traits of Drosophila melanogaster Meigen (Diptera: Drosophilidae) was made under precisely regulated. Here, motivated by population genomic results, we investigate how spatially varying selection in the genetic model system, Drosophila melanogaster, has led to genetic differences between populations in several components of the DNA damage response. UVB incidence, which is negatively correlated with latitude, is an important agent of DNA damage.