Studying the genetic signatures of climate-driven selection can produce insights into local adaptation and the potential impacts of climate change on populations. The honey bee (Apis mellifera) is an interesting species to study local adaptation because it originated in tropical/subtropical climatic regions and subsequently spread into temperate regions. However, little is known about the genet...

This study compared stress-induced expression of Cu-Zn superoxide dismutase (SOD1) and thioredoxin reductase (TrxR) genes in the European honeybee Apis mellifera L. and Asian honeybee Apis cerana F. Expression of both SOD1 and TrxR rapidly increased up to 5 h after exposure to cold (4 °C) or heat (37 °C) treatment and then gradually decreased, with a stronger effect induced by cold stress in A....

In swarming season, honeybee queens emit two kinds of queen piping signals: tooting and quacking. These signals are considered to be important for swarming, honeybees distinguish between the through differences in their temporal structures. this study, we revealed that species, Apis cerana mellifera, had different The A. consisted almost one long syllable, while mellifera was constructed from s...

The honeybee (Apis mellifera) has a genome with a wide variation in GC content showing 2 clear modal GC values, in some ways reminiscent of an isochore-like structure. To gain insight into causes and consequences of this pattern, we used a comparative approach to study the genome-wide alignment of primarily coding sequence of A. mellifera with Drosophila melanogaster and Anopheles gambiae. The ...

Apis mellifera L. is native to Europe, Africa, and Asia (including Saudi Arabia, Iran and the Ural mountains of Russia). It is currently widely distributed across the world due to multiple migrations and introductions (Ruttner, 1988). Apis mellifera includes about two dozen subspecies that are present in different regions of the world. These subspecies have been classified into five main lineag...

The activities of total extracts and lupane triterpenes, isolated from the stem bark of Acacia mellifera, were evaluated against Plasmodium berghei strain ANKA in a female Swiss mouse model. Five isolated compounds and the crude extracts were evaluated for antimalarial activity and Quinine hydrochloride was used as a positive control. Only betulin and the methanolic extract produced considerabl...

Unlike most other insects, annotated genomic data suggest that Apis mellifera has two homologous copies of the cytoplasmic gene HSP90. In this study, we did a phylogenetic analysis on these two copies with some other insects HSP90 genes, and we also manipulated a reverse transcript (RT)-PCR to find all the putative transcripts for both copies. Phylogenetic analysis indicates that A. mellifera p...

The western honeybee, Apis mellifera is a prominent model organism in the field of sociogenomics and a recent upgrade substantially improved annotations of the reference genome. Nevertheless, genome assemblies based on short-sequencing reads suffer from problems in regions comprising e.g. multi-copy genes. We used single-molecule nanopore-based sequencing with extensive read-lengths to reconstr...

objective(s):previous studies demonstrated a functional similarity between vertebrate and honey bee nervous systems. the aim of the present study was to compare the effects of heroin and iranian street kerack, a combination of heroin and caffeine, on sensory threshold and locomotor activity in honey bees. materials and methods: all drugs were given orally to honey bees 30 min before each experi...

b a ckground: the varroa destructor mite is considered as a major pest of honey bees apis mellifera . the rapid spread of varroa mites among bee colonies may be due to several factors, including drifting of infested bees, movement of bee swarms, and robbing of weakened colonies. disease spread and predisposing the infested bees to other diseases lead to high economic losses in beekeeping indust...