Scorpio basraensis sp. n. from southern Iraq (Scorpiones: Scorpionidae)

Posted by
  Scorpio basraensis sp. n. from southern Iraq (Scorpiones: Scorpionidae) Abstract A new scorpion species, Scorpio basraensis sp. n. , is described and illustrated from Basra Province, southern Iraq. Scorpio basraensis sp. n. is compared with all known species of the genus Scorpio Linnaeus, 1758 occurring in countries surrounding Iraq. The new species can be distinguished by the circular genital operculum in males and the cordiform genital operculum in females (not posteriorly elongated), a densely hirsute body, appendages and metasoma, a distinctly elongated telson vesicle, discrete granules on the external surface of the chela manus that are not flattened, and pectinal tooth counts of 11–13 in males and 9–11 in females. With the description of this species, the number of scorpion species known from Iraq increases to 22, whereas the number of recognized species in the genus Scorpio reaches 33. Yağmur, Ersen A.; Makki, Jafar A.; and Najim, Shurooq A. (2026) " Scorpio basraen...

Expression characterization of miR-6826-3p in Pardosa pseudoannulata (Araneae: Lycosidae) under high temperature stress

Posted by

 


Expression characterization of miR-6826-3p in Pardosa pseudoannulata (Araneae: Lycosidae) under high temperature stress

Abstract

Pardosa pseudoannulata is key predator in rice ecosystems; it plays a crucial role in rice pest biological control, effectively managing major rice pests such as rice planthopper. At present, there are few related studies on spiders' microRNA (miRNA). Consequently, we initiate a study on miR-6826-3p in P. pseudoannulata in response to high temperatures. First, we identified a total of 686 target genes of miR-6826-3p, 439 target genes had annotated results in the database, primarily involved in transcription and metabolism functions. Subsequently, quantitative real-time PCR was employed to assess the relative expression levels of miR-6826-3p in P. pseudoannulata under different temperatures (31, 34, 37, 40°C) and various durations (1, 2, 4, 8, 12 h). The results revealed that compared to the control group (25°C), the relative expression level of miR-6826-3p in female spiders significantly increased under the same temperature and different duration stresses. The expression level of miR-6826-3p in male spiders showed an initial increase followed by a decrease trend, with relatively lower expression levels after 1 and 12 h at the same temperature conditions. Furthermore, under the same duration of stress, compared to the control group (25°C), the relative expression level of miR-6826-3p in female spiders significantly increased at different temperatures. These results demonstrate that P. pseudoannulata miR-6826-3p plays a significant role in response to high-temperature stress. The research findings can provide a basis for future in-depth studies on the miRNA functional of P. pseudoannulata, aiding in the elucidation of the regulatory mechanisms of P. pseudoannulata miRNAs in response to high-temperature environments.

Zhang, H., Fu, D., Yang, Q., Xiao, F., Mu, M., Xiao, R., & Jin, D. (2024). Expression characterization of miR-6826-3p in Pardosa pseudoannulata (Araneae: Lycosidae) under high temperature stress. Entomological Research, 54(6), e12755. https://doi.org/10.1111/1748-5967.12755