| 蒋海军,胡理群,周言言,赵海鹏,路纪琪,田军东.2022.河南信阳发现台湾灰麝鼩.动物学杂志,57(5):751-758. |
| 河南信阳发现台湾灰麝鼩 |
| Discovery of Crocidura tanakae (Mammalia: Soricidae) in Xinyang, Henan Province |
| 投稿时间：2022-01-05 修订日期：2022-08-30 |
| DOI：10.13859/j.cjz.202205011 |
| 中文关键词: 台湾灰麝鼩 鼩鼱科 哺乳动物 分布新记录种 大别山 河南 |
| 英文关键词:Crocidura tanakae Soricidae Mammalia New record Mt. Dabieshan Henan Province |
| 基金项目:郑州大学青年骨干教师培养计划项目（No. 2021ZDGGJS049） |
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| 中文摘要: |
| 于2013年和2018年在河南信阳新县与浉河共采集到3号鼩鼱成年个体标本，基于齿色特征初步鉴定为劳亚食虫目鼩鼱科麝鼩属（Crocidura）物种。对所采3号标本的Cyt b基因进行PCR扩增和测序，测序结果与GenBank数据库进行比对，并通过构建系统发育关系树进一步明确所采3只标本的分类地位。根据标本形态、头骨特征，结合分子生物学证据，确定该物种为台湾灰麝鼩（C. tanakae），为河南哺乳动物分布新记录种。标本现存于郑州大学生物多样性与生态学研究所（编号分别为IBE20131005、IBE2018100501和IBE2018100502）。 |
| 英文摘要: |
| Henan locates in the central of China and is characterized with transition area between Palearctic and Oriental regions in zoogeography. However, there is only few investigations of the third species-most abundant order Eulipotyphla, therefore limiting the study of zoogeography. In this study, we aimed to identify three shrews collected from Xinyang City, China, which would enrich the species diversity of Eulipotyphla in Henan Province, China. During October 2013, a shrew (voucher number IBE20131005) was collected from Baichong conservation station (31°36?54? N, 114°51?13? E) of Liankangshan National Nature Reserve, Xinxian, Xinyang, Henan Province, China; and during May 2018 two shrews (voucher number IBE2018100501 and IBE2018100502) were collected from Dahuwan (32°18?57? N, 113°48?5? E), Wujiadian Town, Shihe District, Xinyang, Henan Province, China. Based on the morphological characteristics (Fig.1), the three shrews could be assigned as species from genus Crocidura. In order to identify the taxonomic status, the morphological and skull variables of these shrews were measured and compared with topotype specimen (Table 1), and then phylogenetic relationship (Fig. 2) within genus Crocidura was analyzed using Cyt b sequences and K2P genetic distance was also estimated by using Cyt b sequences. The cranial length (CIL) of the specimen IBE2018100501 is 20.40 mm (Table 1). The cranial width (CB) is 9.62 mm, the orbital width (IOB) is 4.79 mm, the great width measured at anterior labial margins of 2nd upper molars (M2-M2) is 6.16 mm, the upper dentition length (UTRL) is 9.14 mm, and the lower dentition length (LMTR) is 8.13 mm. The genetic distance of K2P between Henan Province and other regions is 0.1%﹣1.2%. Both morphological (Fig. 1) and phylogenetic analyses (Fig. 2) suggested that the three shrews were Crocidura tanakae, a new record of mammals in Henan Province, China. This study also suggested the north-most distribution of C. tanakae was higher than previous record. The C. tanakae collected from the three locations of Mt. Dabieshan showed a very close phylogenetic relationship but further phylogenetic relationship with populations collected from Mt. Huangshan area located close to the south edge of Changjiang River, which suggested the river could be a natural barrier for the gene flows of this species. The specimens (voucher number IBE20131005, IBE2018100501 and IBE2018100502) were stored at the Institute of Biodiversity and Ecology, Zhengzhou University. |
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