文献类型： 外文期刊

作者： Tang, Rui ¹ ; Huang, Cong ² ; Yang, Jun ⁴ ; Rao, Zhong-Chen ¹ ; Cao, Li ¹ ; Bai, Peng-Hua ⁵ ; Zhao, Xin-Cheng ⁶ ; Dong, Jun-Feng ⁷ ; Yan, Xi-Zhong ⁴ ; Wan, Fang-Hao ² ; Jiang, Nan-Ji ⁸ ; Han, Ri-Chou ¹ ;

作者机构： 1.Guangdong Acad Sci, Guangdong Key Lab Anim Conservat & Resource Utiliz, Guangdong Publ Lab Wild Anim Conservat & Utilizat, Inst Zool, Guangzhou 510260, Peoples R China

2.Chinese Acad Agr Sci, State Key Lab Biol Plant Dis & Insect Pests, Inst Plant Protect, Beijing 100193, Peoples R China

3.Chinese Acad Agr Sci, Guangdong Lab Lingnan Modern Agr, Genome Anal Lab, Minist Agr,Agr Genom Inst Shenzhen,Shenzhen Branch, Shenzhen 518120, Peoples R China

4.Shanxi Agr Univ, Coll Plant Protect, Jinzhong 030801, Shanxi, Peoples R China

5.Tianjin Acad Agr Sci, Inst Plant Protect, Tianjin 300384, Peoples R China

6.Henan Agr Univ, Coll Plant Protect, Henan Int Lab Green Pest Control, Zhengzhou 450046, Peoples R China

7.Henan Univ Sci & Technol, Forestry Coll, Luoyang 471000, Peoples R China

8.Max Planck Inst Chem Ecol, Dept Evolutionary Neuroethol, D-07745 Jena, Germany

关键词： genome; olfactory evolution; neuroecology; Lepidoptera; ghost moth; sex role

期刊名称：GIGASCIENCE （ 影响因子：11.8； 五年影响因子：9.4 ）

ISSN： 2047-217X

年卷期： 2024 年 13 卷

页码：

收录情况： SCI

摘要： Sex role differentiation is a widespread phenomenon. Sex pheromones are often associated with sex roles and convey sex-specific information. In Lepidoptera, females release sex pheromones to attract males, which evolve sophisticated olfactory structures to relay pheromone signals. However, in some primitive moths, sex role differentiation becomes diverged. Here, we introduce the chromosome-level genome assembly from ancestral Himalaya ghost moths, revealing a unique olfactory evolution pattern and sex role parity among Lepidoptera. These olfactory structures of the ghost moths are characterized by a dense population of trichoid sensilla, both larger male and female antennal entry parts of brains, compared to the evolutionary later Lepidoptera. Furthermore, a unique tandem of 34 odorant receptor 19 homologs in Thitarodes xiaojinensis (TxiaOr19) has been identified, which presents overlapped motifs with pheromone receptors (PRs). Interestingly, the expanded TxiaOr19 was predicted to have unconventional tuning patterns compared to canonical PRs, with nonsexual dimorphic olfactory neuropils discovered, which contributes to the observed equal sex roles in Thitarodes adults. Additionally, transposable element activity bursts have provided traceable loci landscapes where parallel diversifications occurred between TxiaOr19 and PRs, indicating that the Or19 homolog expansions were diversified to PRs during evolution and thus established the classic sex roles in higher moths. This study elucidates an olfactory prototype of intermediate sex communication from Himalaya ghost moths. Graphical Abstract