Results 51 to 60 of about 4,326 (173)
Phenotypic plasticity is a key mechanism by which animals can cope with rapidly changeable environments, but the evolutionary lability of such plasticity remains unclear.
Amanda Bretman +3 more
doaj +1 more source
Drosophila Sexual Attractiveness in Older Males Is Mediated by Their Microbiota
Age is well known to be a basis for female preference of males. However, the mechanisms underlying age-based choices are not well understood, with several competing theories and little consensus.
Chloe Heys +3 more
doaj +1 more source
Determinants of mating success in a lek‐mating species
Abstract Leks are male‐biased aggregations formed for mating, where sperm is the only resource acquired by visiting females. One of the many advantages of leks is the possibility to efficiently assess the quality of potential mates by comparing aggregated individuals of the same sex with one another. When direct mate choice occurs in a lekking species,
Joséphine Queffelec +3 more
wiley +1 more source
Preadult competition between Drosophila subobscura and Drosophila pseudoobscura
The Palaearctic species Drosophila subobscura has recently colonized a large area of North America where it coexists with Drosophila pseudoobscura. The viability and developmental rate of these species were studied at 13 dC, 18dC and 23 dC and at densities of 10, 50, 100 and 200 eggs per vial.
D. J. Orengo, A. Prevosti
openaire +1 more source
PATTERN OF CHROMOSOME VARIABILITY IN DROSOPHILA PSEUDOOBSCURA [PDF]
It has been noted by several investigators (Dobzhansky 1944; Novitski 1946; Pavan 1946) that in some species of Drosophila, variability in chromosome structure is virtually restricted to one chromosome. At the same time, they note, the variable chromosome has a large number of inversions distributed throughout the species. This paper shall be addressed
Eric Terzaghi, Daniel Knapp
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Notoptera, a singular ancient insect lineage, is vital for exploring insect environmental adaptation, evolution, and its geological history link, recognized as a national first‐class protected animal. Comparing environmental adaptation genes in Galloisiana sinensis and Grylloprimevala jilina, closely related yet habitat‐disparate species, illuminates ...
Yanhan Zhou +9 more
wiley +1 more source
Extensive divergence of transcription factor binding in Drosophila embryos with highly conserved gene expression. [PDF]
To better characterize how variation in regulatory sequences drives divergence in gene expression, we undertook a systematic study of transcription factor binding and gene expression in blastoderm embryos of four species, which sample much of the ...
Mathilde Paris +5 more
doaj +1 more source
Evolution of Phospholipase A2 in Bees and Flies
This study investigated the evolution of the PLA2 gene in bees and flies and compared the evolutionary rate between them, which denotes the toxic group and the non‐toxic group. The results showed that PLA2 was under purifying selection and that an accelerated evolution of PLA2 occurred in the toxic group when compared with the non‐toxic group ...
Siqi Yang, Minyu Wu, Ping Feng
wiley +1 more source
Epistasis among Drosophila persimilis factors conferring hybrid male sterility with D. pseudoobscura bogotana. [PDF]
The Bateson-Dobzhansky-Muller model posits that hybrid incompatibilities result from genetic changes that accumulate during population divergence.
Audrey S Chang +2 more
doaj +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

