Results 11 to 20 of about 5,024 (148)

Thirty Years of the Biology of Spermatozoa: The Rise and Future of an Evolutionary Paradigm. [PDF]

Ecol Evol
A 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.
europepmc   +2 more sources

A multispecies approach for comparing sequence evolution of X-linked and autosomal sites in Drosophila [PDF]

, 2008
Population genetics models show that, under certain conditions, the X chromosome is expected to be under more efficient selection than the autosomes.
Vicoso, Beatriz, Haddrill, Penelope R, Charlesworth, Brian, Haddrill, Penelope R.   +3 more
core   +1 more source

Drosophila pseudoobscura

, 2022
A photography collection (lateral, ventral, and dorsal images) of Drosophila pseudoobscura.
White, Nicola, Price, Tom AR
core   +1 more source

The Heritability of Mating Behaviour in a Fly and Its Plasticity in Response to the Threat of Sperm Competition [PDF]

, 2014
Phenotypic plasticity is a key mechanism by which animals can cope with rapidly changeable environments, but the evolutionary lability of such plasticity remains unclear.
Price, TA, Bretman, Amanda J., Tom A R Price, Price, Tom A. R., Walling, CA, Anne Lizé, Lizé Anne, Bretman, A, Lizé, A, Bretman Amanda, Amanda Bretman, Bretman, Amanda, Craig A Walling, Price Tom A. R., Lize, Anne, Walling, Craig A., Walling Craig A.   +16 more
core   +1 more source

How chromosomal inversions reorient the evolutionary process

Journal of Evolutionary Biology, Volume 36, Issue 12, Page 1761-1782, December 2023., 2023
Inversions often play key roles in adaptation and speciation, but the processes that direct their evolution are obscured by the characteristic that makes them so unique (reduced recombination between arrangements). In this review, we examine how different mechanisms can impact inversion evolution, weaving together both theoretical and empirical studies.
Emma L. Berdan, Nicholas H. Barton, Roger Butlin, Brian Charlesworth, Rui Faria, Inês Fragata, Kimberly J. Gilbert, Paul Jay, Martin Kapun, Katie E. Lotterhos, Claire Mérot, Esra Durmaz Mitchell, Marta Pascual, Catherine L. Peichel, Marina Rafajlović, Anja M. Westram, Stephen W. Schaeffer, Kerstin Johannesson, Thomas Flatt   +18 more
wiley   +1 more source

SELECTION BY FERTILITY IN DROSOPHILA PSEUDOOBSCURA [PDF]

Genetics, 1974
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
openaire   +2 more sources

Evolution of Divergent Female Mating Preference in Response to Experimental Sexual Selection [PDF]

, 2014
Sexual selection is predicted to drive the coevolution of mating signals and preferences (mating traits) within populations, and could play a role in speciation if sexual isolation arises due to mating trait divergence between populations. However, few
Debelle, A., Snook, R.R., Snook, Rhonda R., Ritchie, Michael G., Debelle, Allan, Ritchie, M.G.   +5 more
core   +1 more source

Genome-wide tests for introgression between cactophilic Drosophila implicate a role of inversions during speciation [PDF]

, 2015
K.L. was funded by a junior research fellowship from the National Environmental Research Council, UK (NE/I020288/1, NBAF659).Models of speciation-with-gene-flow have shown that the reduction in recombination between alternative chromosome arrangements ...
Etges, William J, Lohse, K., Etges, W.J., Clarke, Magnus, Clarke, M., Ritchie, Michael G., Ritchie, Michael G, Etges, William J., Ritchie, M.G., Lohse, Konrad   +9 more
core   +1 more source

A carboxylesterase, Esterase-6, modulates sensory physiological and behavioural response dynamics to pheromone in Drosophila [PDF]

, 2012
Background: Insects respond to the spatial and temporal dynamics of a pheromone plume, which implies not only a strong response to"odor on", but also to"odor off". This requires mechanisms geared toward a fast signal termination.
Rosell Pellisé, Glòria, Chertemps, Thomas, Rosell, Gloria, Dekker Teun, Durand, Nicolas, Philippe Lucas, Maibeche Coisne, Martine, Nicolas Durand, Nicolas Dur, Maïbèche-Coisne, Martine, Lucas, Philippe, François Adrien, Thomas Chertemps, Maïbèche-Coisne Martine, Adrien François, Durand Nicolas, Dekker, Teun, Rosell Gloria, Teun Dekker, Chertemps Thomas, Martine Maïbèche-Coisne, Lucas Philippe, François, Adrien, Gloria Rosell   +23 more
core   +1 more source

Patterns of intron sequence evolution in Drosophila are dependent upon length and GC content [PDF]

, 2005
Introns comprise a large fraction of eukaryotic genomes, yet little is known about their functional significance. Regulatory elements have been mapped to some introns, though these are believed to account for only a small fraction of genome wide intronic
Haddrill, Penelope R, Halligan, D L, Charlesworth, B, Daniel L Halligan, Haddrill, P R, Peter Andolfatto, Charlesworth, Brian, Brian Charlesworth, Halligan, Daniel L, Penelope R Haddrill, Andolfatto, Peter, Andolfatto, P   +11 more
core   +1 more source