| Title: |
Geometric Morphometrics and Genetic Diversity Analysis of Chalcidoidea (Diglyphus and Pachyneuron) at Various Elevations. |
| Authors: |
Xi, Ouyan1,2 (AUTHOR) xoy@stu.xju.edu.cn, Zhang, Shuli1,2 (AUTHOR) zhangsl_1998@163.com, Li, Jinzhe1,2 (AUTHOR) lijinzhe990420@126.com, Hu, Hongying1,2 (AUTHOR) huhongying@xju.edu.cn, Bai, Ming3 (AUTHOR) baim@ioz.ac.cn |
| Source: |
Insects (2075-4450). Jul2024, Vol. 15 Issue 7, p497. 19p. |
| Subject Terms: |
*BIOLOGICAL classification, *PARASITIC wasps, *GENETIC variation, *PTEROMALIDAE, *HAPLOTYPES |
| Abstract: |
Simple Summary: Parasitic wasps are natural enemies of numerous significant agricultural and forestry pests and therefore play an important role in biological control. With the development of integrative taxonomy, a greater variety of techniques are being applied to species identification. Therefore, integrated taxonomy was utilized in this study to identify parasitic wasps. Xinjiang is the largest province in China in terms of land area. However, the resources and environmental adaptation characteristics of Chalcidoidea have been little researched. In this study, we utilized geometric morphometrics and COI gene haplotype analysis and found that the morphology and genetic differentiation of Chalcidoidea changed at different altitudes. Eulophidae and Pteromalidae are parasitic wasps with a global distribution and import for the biological control of pests. They can be distributed in different altitude regions, but their morphological and genetic adaptations to different altitudes are unclear. Here, we collected specimens that belong to Eulophidae and Pteromalidae from various altitudinal gradients, based on integrated taxonomic approaches to determine the species composition, and we analyzed their body shape and size from different altitudes using geometric morphometrics. Then, we performed an analysis of the D. isaea population's haplotype genes to illustrate their genetic diversity. As a result, eight species that belong to two genera, Diglyphus Walker (Eulophidae) and Pachyneuron Walker (Pteromalidae), were identified, including two newly recorded species from China (D. chabrias and D. sabulosus). Through a geometric morphometrics analysis of body shape, we found that a narrow forewing shape and a widened thorax are the significant characteristics of adaptation to high-altitude environments in D. isaea and P. aphidis. Additionally, the body size studies showed a principal relationship between centroid size and altitude; the size of the forewings and thorax increases at higher altitudes. Next, using haplotype analysis, 32 haplotypes were found in seven geographic populations with high genetic diversity of this species. Our research provides preliminary evidence for the morphological and genetic diversity adaptation of parasitic wasps to extreme environments, and these data can provide important references for investigations on the ecological adaptability of parasitic wasps. [ABSTRACT FROM AUTHOR] |
|
Copyright of Insects (2075-4450) is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| Database: |
Academic Search Complete |
|
Full text is not displayed to guests. |
Login for full access.
|
