Huo Qing-Bo, Yang Yu-Ben, Eichert Anna, Du Yu-Zhou
Institute of Applied Entomology, College of Plant Protection, Yangzhou University, Yangzhou 225009, China.
Richard Gilder Graduate School, Division of Invertebrate Zoology, American Museum of Natural History, 200 Central Park West, New York, NY 10024-5192, USA.
Insects. 2025 Feb 26;16(3):244. doi: 10.3390/insects16030244.
Yang and Yang, 1993 is one of the most widely distributed stoneflies in southern China. In this study, the genetic structure of nine different geographical populations of was studied based on three datasets of the , and genes. The phylogenetic trees showed that there had been a great degree of genetic differentiation among its nine geographical populations, but the hypothesis of random mating did not support the formation of reproductive isolation among different geographical populations, indicating that did not form cryptic species. The establishment of the gene and gene supports the population of (Guangdong + Shaanxi + Sichuan + Guizhou + Fujian) as independent branches, while the population of (Anhui + Zhejiang + Hunan) is another branch. The establishment of gene tree supports (Shaanxi + Sichuan + Guizhou + Fujian) as one branch, while the other independent branch is composed of (Anhui + Zhejiang + Guangxi + Hunan + Guangdong) groups. The possible reasons for this situation based on geography and biology are discussed. Our results provide the first reference for the genetic differentiation in Chinese stoneflies.
杨和杨(1993年)是中国南方分布最广的石蝇之一。在本研究中,基于线粒体细胞色素氧化酶亚基I(COI)、细胞色素b(Cytb)和核核糖体第二内部转录间隔区(ITS2)三个数据集,对其九个不同地理种群的遗传结构进行了研究。系统发育树表明,其九个地理种群之间存在高度的遗传分化,但随机交配假说不支持不同地理种群之间形成生殖隔离,这表明杨和杨石蝇没有形成隐存种。COI基因和Cytb基因的建树支持(广东+陕西+四川+贵州+福建)种群为独立分支,而(安徽+浙江+湖南)种群为另一分支。ITS2基因树的建树支持(陕西+四川+贵州+福建)为一个分支,而另一个独立分支由(安徽+浙江+广西+湖南+广东)种群组成。基于地理和生物学因素,讨论了出现这种情况的可能原因。我们的研究结果为中国杨和杨石蝇的遗传分化提供了首个参考依据。