Chemical signals and social structures strengthen sexual isolation in Drosophila pseudoobscura [PDF]
Communications BiologySpecies that coexist in hybrid zones sexually isolate through reproductive character displacement, a mechanism that favours divergence between species. In Drosophila, behavioural and physiological traits discourage heterospecific mating between species ...
Jacob A. Jezovit, Joel D. Levine
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Thirty Years of the Biology of Spermatozoa: The Rise and Future of an Evolutionary Paradigm. [PDF]
Ecol EvolA sperm bundle taken from the seminal vescicles of the dung beetle, Onthophagus taurus. Image credit: Leigh W. Simmons. ABSTRACT In the early 1970s, Geoff Parker recognised that because females frequently mate with multiple males, competition for fertilizations will impose significant sexual selection on males and their ejaculates.
Simmons LW.
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Development and evolution of Drosophila chromatin landscape in a 3D genome context [PDF]
Nature CommunicationsLittle is known about how the epigenomic states change during development and evolution in a 3D genome context. Here we use Drosophila pseudoobscura with complex turnover of sex chromosomes as a model to address this, by collecting massive epigenomic and
Mujahid Ali +5 more
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Zinc finger binding motifs do not explain recombination rate variation within or between species of Drosophila. [PDF]
PLoS ONE, 2012 In humans and mice, the Cys(2)His(2) zinc finger protein PRDM9 binds to a DNA sequence motif enriched in hotspots of recombination, possibly modifying nucleosomes, and recruiting recombination machinery to initiate Double Strand Breaks (DSBs).
Caiti S S Heil, Mohamed A F Noor
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In vivo RNAi rescue in Drosophila melanogaster with genomic transgenes from Drosophila pseudoobscura. [PDF]
PLoS ONE, 2010 BACKGROUND: Systematic, large-scale RNA interference (RNAi) approaches are very valuable to systematically investigate biological processes in cell culture or in tissues of organisms such as Drosophila.
Christoph C H Langer +4 more
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Sperm Predominance Among Drosophila pseudoobscura Karyotypes [PDF]
Evolution, 1984 Female Drosophila store sperm after mating and utilize them to fertilize eggs as they are laid. Often a female mates with a second male while sperm from the first mate still remain in her sperm storage organs. Parker (1970) defined sperm competition as the interaction between, and differential utilization of, sperm from separate ejaculates.
Monte E, Turner, Wyatt W, Anderson
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Odorant receptor (Or) genes: polymorphism and divergence in the D. melanogaster and D. pseudoobscura lineages. [PDF]
PLoS ONE, 2010 BACKGROUND: In insects, like in most invertebrates, olfaction is the principal sensory modality, which provides animals with essential information for survival and reproduction.
Inês C Conceição, Montserrat Aguadé
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Ancestral polymorphisms inDrosophila pseudoobscuraandDrosophila miranda [PDF]
Genetics Research, 2011 SummaryAncestral polymorphisms are defined as variants that arose by mutation prior to the speciation event that generated the species in which they segregate. Their presence may complicate the interpretation of molecular data and lead to incorrect phylogenetic inferences. They may also be used to identify regions of the genome that are under balancing
Nowell, Reuben W +2 more
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An Improved Method for Identification of Pre-miRNA in
IEEE Access, 2020 Identification of microRNAs is important in studies of regulation of gene expression in many biologyical processes. In this study, we developed an improved method for identification of microRNAs in Drosophila.
Tieying Yu, Min Chen, Chunde Wang
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An investigation of Y chromosome incorporations in 400 species of Drosophila and related genera. [PDF]
PLoS Genetics, 2018 Y chromosomes are widely believed to evolve from a normal autosome through a process of massive gene loss (with preservation of some male genes), shaped by sex-antagonistic selection and complemented by occasional gains of male-related genes.
Eduardo G Dupim +10 more
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