长尾蹶鼠形态学和分子系统学初步分析  

Preliminary morphological and molecular systematics analysis of Sicista caudata

作　　者：高艺 吴禹岐 韩美凤 郭秋颖 蔡赫[1] 张春凤[2] 金志民[1] 陈欢[1] 张隽晟[1] 刘铸[1] GAO Yi;WU Yuqi;HAN Meifeng;GUO Qiuying;CAI He;ZHANG Chunfeng;JIN Zhimin;CHEN Huan;ZHANG Junsheng;LIU Zhu(College of Life Science and Technology,Mudanjiang Normal University,Mudanjiang 157011,China;Hei Long Jiang Agricultural Economics Vocational College,Mudanjiang 157041,China)

机构地区：[1]牡丹江师范学院生命科学与技术学院,牡丹江157011 [2]黑龙江农业经济职业学院,牡丹江157041

出　　处：《兽类学报》2024年第4期515-522,共8页Acta Theriologica Sinica

基　　金：黑龙江省省属高等学校基本科研业务费科研项目(1453QN028,1451PT008,1451TD002);黑龙江省自然科学基金(LH2021C095);牡丹江师范学院科研项目(GP2022009)。

摘　　要：长尾蹶鼠(Sicista caudata)自发现至今,获得的标本甚少,形态学数据和分子生物学信息较为匮乏。2023年4—10月,在我国黑龙江省横道河子地区(海拔约740 m,北纬44°48′44″,东经129°02′04″)针阔混交林中采集到6号长尾蹶鼠标本。根据本次采集标本,结合原始描述,总结长尾蹶鼠形态学特征:背毛棕黄色或棕色,无纵纹;腹毛灰黄色或灰白色;前后足背面同色,均覆有白色的毛;尾背面颜色接近于体背颜色,尾腹面颜色略浅,非双色;头体长60~71 mm;尾长100~116 mm;尾长长于体长的1.5倍;颅全长19.6~20.9 mm。系统进化树显示我国黑龙江的长尾蹶鼠与俄罗斯萨哈林岛的长尾蹶鼠构成一个进化支,但存在一定的遗传分化,遗传距离为0.0376。Since its discovery in 1907,Sicista caudata is represented by only a few specimens,and morphological and molecular data are scarce.Six specimens of S.caudata were collected in the mixed forest of Hengdaohezi region,Heilongjiang Province,China(altitude about 740 m,44°48′44″N,129°02′04″E)between April and October 2023.Morphological characteristics of S.caudata were summarized based on the original description and the new specimens.The dorsal hairs of the body are brownish yellow or brown,without a longitudinal line.The ventral hairs are grayish yellow or grayish white.The dorsal of the front and hind feet are of the same color,covered with white hairs.The color of the dorsal of the tail is similar to the color of the dorsal of the body,while the ventral color of the tail is slightly lighter.The color of the tail is non-bicolor.The head-and-body length ranges from 60 to 71 mm,and the tail length from 100 to 116 mm.The tail is 1.5 times longer than the head-and-body length.The greatest length of the skull ranges 19.6–20.9 mm.The phylogenetic tree shows that S.caudata specimens from Heilongjiang,China and from Sakhalin,Russia form sister lineages with a genetic distance of 0.0376.

关 键 词：蹶鼠属 长尾蹶鼠 Cyt b基因 形态学 

分 类 号：Q958.2[生物学—动物学]