98%
921
2 minutes
20
MicroRNAs (miRNAs) regulate gene expression and contribute to numerous physiological processes. However, little is known about the functions of miRNAs in insect chemosensation. In this study, nine small RNA libraries were constructed and sequenced from the antennae of nymphs, adult males, and adult females of Apolygus lucorum. In total, 399 (275 known and 124 novel) miRNAs were identified. miR-7-5p_1 was the most abundant miRNA. Altogether, 69,708 target genes related to biogenesis, membrane, and binding activities were predicted. In particular, 15 miRNAs targeted 16 olfactory genes. Comparing the antennae of nymphs and adult males and females, 94 miRNAs were differentially expressed. Alternatively, a subset of differentially expressed miRNAs was verified by qPCR, supporting the reliability of the sequencing results. This study provides a global miRNA transcriptome for the antennae of A. lucorum and valuable information for further investigations of the functions of miRNAs in the regulation of chemosensation.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.ygeno.2022.110447 | DOI Listing |
Arch Insect Biochem Physiol
July 2025
Tobacco Research Institute of Guangdong Province, Shaoguan, China.
Odorant-binding proteins (OBPs) and chemosensory proteins (CSPs) are essential for host-seeking behaviors in herbivorous and predatory insects. However, limited studies have examined differences in the OBP and CSP profiles between herbivores and predators. Mirid bugs, which ancestrally were predatory, provide an ideal model to investigate these differences because some of mirid species have evolved to develop herbivorous capacities.
View Article and Find Full Text PDFJ Econ Entomol
August 2025
East China University of Science and Technology, Shanghai, China.
The mirid bug, Apolygus lucorum Meyer-Dür, is a significant pest in cotton (Gossypium hirsutum L.) cultivation. Previous studies have shown that gut microbiota plays a crucial role in insect adaptation to host plants.
View Article and Find Full Text PDFPest Manag Sci
September 2025
National Key Laboratory of Agricultural Microbiology, Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China.
Background: Herbivorous insects cause substantial losses in cotton production worldwide. To resolve insect resistance and environmental pollution challenges, an innovative and eco-friendly strategy for pest management is needed. Insects acquire sterols from dietary sources because they cannot endogenously synthesize them de novo.
View Article and Find Full Text PDFFront Plant Sci
March 2025
College of Life Sciences, Zaozhuang University, Zaozhuang, China.
, a cosmopolitan Hemiptera insect, poses a significant threat to (jujube), causing symptoms such as mottled chlorosis. However, the mechanisms through which affects chlorophyll biosynthesis and degradation remain unclear. This study investigates the effects of infestation on chlorophyll metabolism and photosynthetic performance in winter jujube leaves.
View Article and Find Full Text PDFPestic Biochem Physiol
March 2025
Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China. Electronic address:
The pyrethroid insecticide lambda-cyhalothrin is threatened by insecticide resistance and has been registered to control Apolygus lucorum. The sulfoximine insecticide sulfoxaflor as an excellent candidate is recommended for its management. Previous studies have mainly focused on identifying resistance genes and their sublethal effects on the biological characteristics of these two insecticides in this pest.
View Article and Find Full Text PDF