Odorant receptor (Or) genes: polymorphism and divergence in the D. melanogaster and D. pseudoobscura lineages. [PDF]
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]
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
openaire +4 more sources
An Improved Method for Identification of Pre-miRNA in
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]
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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FITNESS OF KARYOTYPES IN DROSOPHILA PSEUDOOBSCURA [PDF]
ABSTRACT In the dynamics of the survival of chromosomal polymorphism selection may be operating at the genic level, at the chromosomal level or at the supergene level. Tests designed to distinguish between these levels were run on Drosophila pseudoobscura.
M, Wasserman, H R, Koepfer
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Ancestral polymorphisms explain the role of chromosomal inversions in speciation. [PDF]
Understanding the role of chromosomal inversions in speciation is a fundamental problem in evolutionary genetics. Here, we perform a comprehensive reconstruction of the evolutionary histories of the chromosomal inversions in Drosophila persimilis and D ...
Zachary L Fuller +4 more
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Large introns in relation to alternative splicing and gene evolution: a case study of Drosophila bruno-3 [PDF]
Background: Alternative splicing (AS) of maturing mRNA can generate structurally and functionally distinct transcripts from the same gene. Recent bioinformatic analyses of available genome databases inferred a positive correlation between intron length ...
A Marchler-Bauer +100 more
core +5 more sources
Functional Evolution of a cis-Regulatory Module [PDF]
Lack of knowledge about how regulatory regions evolve in relation to their structure–function may limit the utility of comparative sequence analysis in deciphering cis-regulatory sequences.
Alekseeva, Elena +5 more
core +9 more sources
De novo transcriptome assembly reveals sex-specific selection acting on evolving neo-sex chromosomes in Drosophila miranda. [PDF]
BackgroundThe Drosophila miranda neo-sex chromosome system is a useful resource for studying recently evolved sex chromosomes. However, the neo-Y genomic assembly is fragmented due to the accumulation of repetitive sequence.
Bachtrog, Doris, Kaiser, Vera B
core +2 more sources
SELECTION BY FERTILITY IN DROSOPHILA PSEUDOOBSCURA [PDF]
ABSTRACT Fertility, the component of selection due to female fecundity and male mating success, differed significantly among the ST/ST, ST/AR, and AR/AR karyotypes in experimental populations and varied with karyotypic frequency. In relation to ST/AR, ST/ST females and males had higher fertilities at low frequency; AR/AR males and ...
W W, Anderson, T K, Watanabe
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