Video Experimental Relacionado

Updated: Feb 2, 2026

Protocols for CRISPR/Cas9 Mutagenesis of the Oriental Fruit Fly Bactrocera dorsalis

Protocols for CRISPR/Cas9 Mutagenesis of the Oriental Fruit Fly Bactrocera dorsalis

Published on: September 28, 2022

BdorOR49a y BdorOR63a son responsables de la percepción de las feromonas masculinas en la mosca oriental de la fruta

Fu Cao¹, Hongfei Li¹, Bao Dong¹

¹Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China.

Insect biochemistry and molecular biology

|January 31, 2026

Abstract:

The oriental fruit fly, Bactrocera dorsalis is a serious fruit pest. Trimethylpyrazine (TMP) and tetramethylpyrazine (TTMP) were characterized as its male released sex pheromone, which showed strong attraction to sexually mature females. So far, the molecular basis of the perception of TMP and TTMP by the females has remained unknown. In this study, using BdorIR8a^-/- and BdorOrco^-/- mutants, we demonstrated that the perception of TMP and TTMP is mediated by odorant receptors (ORs). Furthermore, we generated transgenic Drosophila expressing two odorant receptors (BdorOR49a and BdorOR63a previously showed in vitro binding ability to TMP and TTMP, respectively) in T1 neurons. Subsequent single sensillum recordings (SSR) of the transgenic fly demonstrated that BdorOR49a and BdorOR63a are tuned to TMP and TTMP, respectively. Furthermore, knockout of BdorOR49a and knockdown of BdorOR63a in vivo reduced the olfactory sensitivity of the females to TMP and TTMP. Our results indicated that BdorOR49a and BdorOR63a are responsible for the perception of the male released sex pheromones in B. dorsalis.

Palabras clave:

Feromonas sexuales liberadas por machos Receptores olfativos Registro de sensilo único La mosca oriental de la fruta

Más Videos Relacionados

Topical Application Bioassay to Quantify Insecticide Toxicity for Mosquitoes and Fruit Flies

Topical Application Bioassay to Quantify Insecticide Toxicity for Mosquitoes and Fruit Flies

Published on: January 19, 2022

Author Spotlight: Sieving Fruit Pulp to Detect Immature Tephritid Fruit Flies in the Field

Author Spotlight: Sieving Fruit Pulp to Detect Immature Tephritid Fruit Flies in the Field

Published on: July 28, 2023

Videos de Conceptos Relacionados

Fruit Development, Structure, and Function

Fruit Development, Structure, and Function

Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy. In some cases, organs other than the ovary contribute to fruit formation; such fruits are called accessory fruits.

Male Sexual Response: Erection & Ejaculation

Male Sexual Response: Erection & Ejaculation

Sexual stimulation can take various forms, such as physical touch and visual or auditory cues. When this happens, the parasympathetic reflex in the sacral portion of the spinal cord is activated. This reflex stimulates the release of nitric oxide (NO), which then dilates the arterioles in the penis, increasing blood flow to the erectile tissues - the corpora cavernosa and corpus spongiosum.
The blood filling the erectile tissues compresses the veins, which helps to prevent blood from leaving...

Subliminal Perception

Subliminal Perception

Subliminal perception refers to the processing of sensory information that occurs below the level of conscious awareness. Researchers study subliminal perception by presenting a stimulus, such as a word or image, very quickly, typically around 50 milliseconds. This rapid presentation is often followed by another stimulus, such as a pattern of dots or lines, which blocks further mental processing of the initial stimulus. As a result, if participants cannot identify the initial stimulus better...

Factors Affecting Perception

Factors Affecting Perception

Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
An illustrative example of a perceptual set is the scenario where an airline pilot told...

Perception

Perception

Perception is a fundamental psychological process that enables individuals to organize, interpret, and consciously experience sensory information. This process is crucial for understanding and interacting with the world around us. It includes both bottom-up and top-down processing, each playing a distinct role in how we perceive our environment.
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...

Gestalt Principles of Perception

Gestalt Principles of Perception

Gestalt principles provide a framework for understanding how humans perceive objects as unified wholes within their context. These principles are essential in explaining the cognitive processes that make sense of complex visual stimuli by organizing them into coherent groups. One fundamental principle is proximity, which posits that objects located close to each other are perceived as a collective group. For instance, when dots are positioned near one another, the visual system interprets them...