河南信阳发现中华鼠耳蝠
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1.河南师范大学生命科学学院 新乡 453007;2.河南省太行山森林生态系统野外科学观测研究站 新乡 453007;3.安阳市林业资源预防和保护工作中心 安阳 455000

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岳馨玉,女,硕士研究生;研究方向:动物学;E-mail:2404183086@stu.htu.edu.cn。

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国家科技基础资源调查专项(No. 2021FY100300,2021FY100301);


Myotis chinensis Found in Xinyang, Henan, China
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Affiliation:

1.College of Life Sciences, Henan Normal University, Xinxiang 453007;2.Field Observation and Research Station of Forest Ecosystems in Taihang Mountains, Henan Province, Xinxiang 453007;3.Anyang Center for Prevention and Protection of Forestry Resources, Anyang 455000, China

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    摘要:

    2023年8月在河南信阳商城县,使用竖琴网捕捉到1只雌性鼠耳蝠。录制该个体悬挂探索时回声定位叫声,测量其外部形态和头骨相关参数,并提取翼膜组织基因组DNA,扩增其完整的ND1基因序列用于构建系统发育树,以鉴定其种类。测量发现,该标本体型较大,前臂长约64.3 mm。背部毛深灰棕色,毛根几乎为黑色,腹部毛灰色。耳屏狭长,长为11.1 mm,约为耳长的一半。翼膜起始于趾基部,尾膜起始于踝关节。头骨略扁平,矢状嵴突出。回声定位声波为调频型,包括2个谐波,峰频(44.1 ± 4.9)kHz。基于ND1基因建立的最大似然树,河南鼠耳蝠样本和中华鼠耳蝠(Myotis chinensis,GenBank序列号AB106567)聚为一支,二者序列差异最小,遗传距离为0.003;而河南鼠耳蝠样本与狭耳鼠耳蝠(M. blythii)及大足鼠耳蝠(M. pilosus)的遗传距离均大于0.120。结合外部形态、头骨参数以及系统进化树结果,将河南鼠耳蝠样本鉴定为中华鼠耳蝠,为河南省翼手目物种分布新记录种。

    Abstract:

    In August 2023, a female Myotis bat was captured by a harp trap in Shangcheng County, Xinyang City, Henan Province. The echolocation calls of the specimen were recorded during its stationary and exploratory behaviors. The external morphology and cranial parameters were measured, and genomic DNA was extracted from the wing membrane tissue. The complete sequence of the ND1 gene was amplified to facilitate the construction of a phylogenetic tree for species identification. Morphometric analysis indicated that the specimen was relatively large, with a forearm length of 64.3 mm. The dorsal fur exhibited a dark gray-brown color with nearly black roots, while the ventral fur was gray (Fig. 1a). The tragus was narrow and elongated, measuring 11.1 mm, approximately half the length of the ear (Fig. 1b). The wing membrane originated at the base of toes, and the tail membrane commenced at the ankle joint (Fig. 1c). The skull was slightly flattened, featuring a prominent sagittal crest (Fig. 2). The echolocation calls were characterized by a frequency-modulated type, comprising two harmonics (Fig. 3), with a peak frequency of 44.1 ± 4.9 kHz. The maximum likelihood phylogenetic tree constructed based on the ND1 gene (Fig. 4) indicated that the Myotis specimen from Henan shared the same clade with M. chinensis (GenBank accession number:AB106567), exhibiting minimal sequence divergence and a genetic distance of 0.003. Conversely, the genetic distances between the Henan specimen and both M. blythii and M. pilosus exceeded 0.120. According to the data from external morphology, cranial measurements, and the phylogenetic analysis, the Myotis specimen from Henan was identified as M. chinensis, marking a novel record of bat species distribution in Henan Province.

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岳馨玉,杨相国,刘波,杜建滢,陈煜,刘森. 2025.河南信阳发现中华鼠耳蝠. 动物学杂志, 60(4): 607-612.

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  • 收稿日期:2024-10-22
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  • 在线发布日期: 2025-08-13
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