| Title: | "The Genetic Basis of Gene Expression Divergence in Antennae of Two Closely Related Moth Species, Helicoverpa armigera and Helicoverpa assulta" |
| Author(s): | Guo PP; Li GC; Dong JF; Gong XL; Wang L; Yang K; Yang J; Huang LQ; Wang CZ; |
| Address: | "State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China. CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing 100101, China. Forestry College, Henan University of Science and Technology, Luoyang 471000, China. Department of Biology, Duke University, Durham, NC 27708, USA" |
| ISSN/ISBN: | 1422-0067 (Electronic) 1422-0067 (Linking) |
| Abstract: | "The closely related species Helicoverpa armigera (H. armigera) and Helicoverpa assulta (H. assulta) have different host plant ranges and share two principal components of sex pheromones but with reversed ratios. The antennae are the main olfactory organ of insects and play a crucial role in host plant selection and mate seeking. However, the genetic basis for gene expression divergence in the antennae of the two species is unclear. We performed an allele-specific expression (ASE) analysis in the antennal transcriptomes of the two species and their F(1) hybrids, examining the connection between gene expression divergence and phenotypic differences. The results show that the proportion of genes classified as all cis was higher than that of all trans in males and reversed in females. The contribution of regulatory patterns to gene expression divergence in males was less than that in females, which explained the functional differentiation of male and female antennae. Among the five groups of F(1) hybrids, the fertile males from the cross of H. armigera female and H. assulta male had the lowest proportion of misexpressed genes, and the inferred regulatory patterns were more accurate. By using this group of F(1) hybrids, we discovered that cis-related regulations play a crucial role in gene expression divergence of sex pheromone perception-related proteins. These results are helpful for understanding how specific changes in the gene expression of olfactory-related genes can contribute to rapid evolutionary changes in important olfactory traits in closely related moths" |
| Keywords: | Animals Arthropod Antennae/metabolism Female Male *Moths/genetics/metabolism *Sex Attractants/genetics/metabolism Smell/genetics Transcriptome allele-specific expression antennae cis- and trans-regulatory variants pheromone receptors; |
| Notes: | "MedlineGuo, Ping-Ping Li, Guo-Cheng Dong, Jun-Feng Gong, Xin-Lin Wang, Lingyu Yang, Ke Yang, Jun Huang, Ling-Qiao Wang, Chen-Zhu eng No. 31830088/National Natural Science Foundation of China/ No. 32130090/National Natural Science Foundation of China/ Switzerland 2022/09/10 Int J Mol Sci. 2022 Sep 2; 23(17):10050. doi: 10.3390/ijms231710050" |
