Functional nonequivalence of sperm in Drosophila pseudoobscura. [PDF]
We report on a form of sperm polymorphism, termed polymegaly, that occurs in species of the Drosophila obscura group. Individual males of species in this group characteristically produce more than one discrete length of nucleated, motile sperm. Hypotheses suggested to explain the evolutionary significance of sperm polymorphism have been either ...
Rhonda R. Snook+2 more
openaire +3 more sources
We also CanFly! The 2nd MexFly drosophila research conference
The 2nd Mexican Drosophila Research Conference (MexFly) took place on June 30th and July 1st, 2016 in Mexico City, at the Center for Research and Advanced Studies of the National Polytechnic Institute (Cinvestav).
Fanis Missirlis, Marcos Nahmad
doaj +1 more source
Temporalchanges in relative frequencies of third chromosome inversions of Drosophila pseudoobscura in Mexican populations [PDF]
Variations in relative frequencies of third chromosome inversions during 1974-2000 in three populations of D. pseudoobscura from Mexico were analyzed. The general constitution of these populations is formed from ten up to 15 different inversions, been ...
de la Rosa Esther Ma+3 more
core +1 more source
Geographical changes in relative frequency of inversions in chromosome III of Drosophila pseudoobscura among natural populations from Mexico [PDF]
Chromosomal polymorphism in natural populations of Drosophila pseudoobscura have been broadly studied in the USA but scarcely in Mexico where only about 60 localities have been analyzed.
Salceda Víctor M.
core +1 more source
Revealing posttranscriptional regulatory elements through network-level conservation. [PDF]
We used network-level conservation between pairs of fly (Drosophila melanogaster/D. pseudoobscura) and worm (Caenorhabditis elegans/C. briggsae) genomes to detect highly conserved mRNA motifs in 3' untranslated regions.
Chang S Chan+2 more
doaj +2 more sources
Krüppel Expression Levels Are Maintained through Compensatory Evolution of Shadow Enhancers
Many developmental genes are controlled by shadow enhancers—pairs of enhancers that drive overlapping expression patterns. We hypothesized that compensatory evolution can maintain the total expression of a gene, while individual shadow enhancers diverge ...
Zeba Wunderlich+5 more
doaj +1 more source
Host species and environmental effects on bacterial communities associated with Drosophila in the laboratory and in the natural environment [PDF]
The fruit fly Drosophila is a classic model organism to study adaptation as well as the relationship between genetic variation and phenotypes. Although associated bacterial communities might be important for many aspects of Drosophila biology, knowledge about their diversity, composition, and factors shaping them is limited.
arxiv +1 more source
RepeatOBserver: Tandem Repeat Visualisation and Putative Centromere Detection
ABSTRACT Tandem repeats play an important role in centromere structure, subtelomeric regions, DNA methylation, recombination and the regulation of gene activity. Analysis of their distribution in genomes offers a potential means for predicting putative centromere locations, which continues to be a challenge for genome annotation.
Cassandra Elphinstone+3 more
wiley +1 more source
Inferring Network Mechanisms: The Drosophila melanogaster Protein Interaction Network [PDF]
Naturally occurring networks exhibit quantitative features revealing underlying growth mechanisms. Numerous network mechanisms have recently been proposed to reproduce specific properties such as degree distributions or clustering coefficients.
arxiv +1 more source
A recombinational portrait of the Drosophila pseudoobscura genome
Drosophila pseudoobscura has been intensively studied by evolutionary biologists for over 70 years. The recent publication of the genome sequence not only permits studies of comparative genomics with other dipterans but also opens the door to identifying genes associated with adaptive traits or speciation or testing for the signature of natural ...
Ortiz-Barrientos, Daniel+2 more
openaire +4 more sources