Induction of caste differentiation in the honey bee (Apis mellifera L.) after topical application of JH-III

1977 ◽  
Vol 24 (3) ◽  
pp. 265-265
Author(s):  
E. A. Goewie
Keyword(s):  
Apis Mellifera ◽  
Honey Bee ◽  
Topical Application ◽  
Caste Differentiation

scholarly journals DIFFERENTIAL TOXICITY OF PYRETHROID AND ORGANOPHOSPHATE INSECTICIDES TO THE HONEY BEE, APIS MELLIFERA AND THE YELLOW FEVER MOSQUITO, AEDES AEGYPTI

2021 ◽  
Vol 68 (1) ◽  
pp. 70-78
Author(s):  
Hussein Sanchez-Arroyo
Keyword(s):  
Apis Mellifera ◽  
Aedes Aegypti ◽  
Honey Bee ◽  
Yellow Fever ◽  
Topical Application ◽  
Honey Bees ◽  
Commercial Formulation ◽  
Differential Toxicity ◽  
Paper Method ◽  
Potential Use

Six insecticide active ingredients (AIs) and five commercial insecticide formulations were applied by topical application and onto filter paper strips to determine differential toxicity to Aedes aegypti (L.) and Apis mellifera (L.), and to evaluate their potential use in future insecticide resistance monitoring surveys. For topical application, 0.1 or 1 µl of the technical insecticide solution was applied to the Ae. aegypti and A. mellifera thorax, respectively. For insecticide-impregnated strips the insecticide amount varied, according with the commercial formulation. By topical application deltamethrin was the most toxic AI (LD 50 = 0.057 µg/g) to Ae. aegypti and prallethrin was least toxic (LD 50 = 19.42 µg/g). For A. mellifera, the most toxic AIs were deltamethrin (LD 50 = 0.013 µg/g) and bifenthrin (LD50 = 0.156 µg/g); and the least toxic was chlorpyrifos (LD 50 = 3.246 µg/g). When the insecticide-impregnated papers method was used, Mosquitomist Two (chlorpyrifos 24.6%) was the most toxic insecticide for Ae. aegypti (LC50 = 0.024 µg/cm2 ), and Aqualuer (permethrin 20.6%, PBO 20.6%) was least toxic (LC50 = 0.408 µg/cm2 ). For A. mellifera the most toxic commercial insecticide formulations were Talstar (bifenthrin 7.9%; LC50 = 0.288 µg/cm2 ) and Mosquitomist Two (LC50 = 0.299 µg/cm2 ), with no significant differences, and the least toxic commercial formulation was Deltagard (deltamethrin 2.0%; LC50 = 15.084 µg/cm2 ). By topical application, more than 28 times of chlorpyrifos was needed to obtain the same mortality in A. mellifera as in Ae. aegypti. When using the insecticide-impregnated paper method, more than 206 times of Deltagard was needed to obtain the same mortality in A. mellifera as in Ae. aegypti. Even though Mosquitomist Two was the most toxic insecticide for both insect species, the honey bees were >12 times more tolerant to this insecticide, compared with the mosquitoes.

scholarly journals Differential expression of miRNAs related to caste differentiation in the honey bee, Apis mellifera

Apidologie ◽  
2015 ◽  
Vol 47 (4) ◽  
pp. 495-508 ◽  
Author(s):  
Xiangqian Guo ◽  
Songkun Su ◽  
Skogerbø Geir ◽  
Wenfeng Li ◽  
Zhiguo Li ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Differential Expression ◽  
Honey Bee ◽  
Caste Differentiation

scholarly journals Changes in Alternative Splicing in Apis Mellifera Bees Fed Apis Cerana Royal Jelly

2014 ◽  
Vol 58 (2) ◽  
pp. 25-31 ◽  
Author(s):  
Yuan Yuan Shi ◽  
Zachary Y. Huang ◽  
Xiao Bo Wu ◽  
Zi Long Wang ◽  
Wei Yu Yan ◽  
...  
Keyword(s):  
Alternative Splicing ◽  
Apis Mellifera ◽  
Honey Bee ◽  
Royal Jelly ◽  
Intron Retention ◽  
Tricarboxylic Acid Cycle ◽  
Apis Cerana ◽  
Causative Factor ◽  
Caste Differentiation ◽  
Splice Sites

Abstract The Western honey bee (Apis mellifera) is a social insect characterized by caste differentiation in which the queen bee and worker bees display marked differences in morphology, behavior, reproduction, and longevity despite their identical genomes. The main causative factor in caste differentiation is the food fed to queen larvae, termed royal jelly (RJ). Alternative splicing (AS) is an important RNA-mediated post-transcriptional process in eukaryotes. Here we report AS changes in A. mellifera after being fed either A. mellifera RJ or A. cerana RJ. The results demonstrated that the RJ type affected 4 types of AS in adult A. mellifera: exon skipping, intron retention, alternative 5’ splice sites, and alternative 3’splice sites. After feeding with A. cerana RJ, AS occurred in many genes in adult A. mellifera that encode proteins involved in development, growth, the tricarboxylic acid cycle, and substance metabolism. This study provides the first evidence that heterospecific RJ can influence the AS of many genes related to honey bee development and growth.

Methionine as a methyl donor regulates caste differentiation in the European honey bee ( Apis mellifera )

2020 ◽  
Author(s):  
Wen‐Feng Chen ◽  
Ying Wang ◽  
Wei‐Xing Zhang ◽  
Zhen‐Guo Liu ◽  
Bao‐Hua Xu ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Honey Bee ◽  
Caste Differentiation ◽  
Methyl Donor
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