基于雄性生殖器形态对肩斑萤属（鞘翅目，红萤科）种间关系的系统发育形态计量学研究

A Phylogenetic Morphometric Investigation of Interspecific Relationships of s. str. (Coleoptera, Lycidae) Based on Male Genitalia Shapes.

作者信息

Fang Chen, Yang Yuxia, Yang Xingke, Liu Haoyu

机构信息

Key Laboratory of Zoological Systematics and Application, School of Life Science, Institute of Life Science and Green Development, Hebei University, Baoding 071002, China.

Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.

出版信息

Insects. 2023 Dec 27;15(1):11. doi: 10.3390/insects15010011.

The nominate subgenus Waterhouse, 1878 from China is reviewed, with two new species described and named (s. str.) sp. n. (China, Yunnan) and (s. str.) sp. n. (China, Xizang). A distribution map and a key to all species of s. str. are provided. Moreover, the phenotypic relationships among the species of s. str. are investigated based on phallus shapes using geometric morphometric and phylogenetic morphometric analyses. The topologies demonstrate that the species are divided into two clades. One clade is composed of six species ( sp. n., sp. n., , , , and ) and is supported by a stout phallus (less than 3.6 times longer than wide). The other clade includes the remaining species (, , , , and ) and is supported by a slender phallus (at least 4.1 times longer than wide). These results provide better understanding of the species diversity and evolution of s. str. Nonetheless, more samples and loci are required in the future to verify the present results.

对1878年命名的来自中国的指名亚属进行了综述，描述并命名了两个新物种（狭义）新种（中国，云南）和（狭义）新种（中国，西藏）。提供了分布图和狭义所有物种的检索表。此外，基于阴茎形状，利用几何形态计量学和系统发育形态计量学分析，研究了狭义物种间的表型关系。拓扑结构表明，这些物种分为两个进化枝。一个进化枝由六个物种（新种、新种、、、、和）组成，其特征是阴茎粗壮（长度不到宽度的3.6倍）。另一个进化枝包括其余物种（、、、、和），其特征是阴茎细长（长度至少是宽度的4.1倍）。这些结果有助于更好地理解狭义的物种多样性和进化。尽管如此，未来还需要更多的样本和基因座来验证目前的结果。