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甘肃和青海发现蒙侧褶蛙两栖类新纪录

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以从甘肃永靖县和青海海东市民和回族土族自治县2次共采集到的侧褶蛙属标本10号为研究对象,通过形态学特征比较发现,10号标本的头长略大于头宽,呈三角形,皮肤光滑,背部有黑斑,中央有一条从头部延伸至肛前缘的浅绿色纵向细线,颌腺明显,鼓膜大呈圆形鼓膜径大于眼径,后肢短而粗壮,趾尖钝圆,趾间全蹼无缺刻.这些特征与采集于内蒙古自治区包头市土默特右旗美岱召镇(模式产地)的蒙侧褶蛙形态鉴定特征基本一致.基于16SrRNA、12SrRNA、COI和Cytb串联基因片段的系统发育分析表明,10号标本与蒙侧褶蛙聚在一支,且串联基因的遗传距离较小(p-distance为1.9%),确定10号标本均为蒙侧褶蛙,是甘肃和青海两栖纲分布新纪录物种.
New Distribution Records of Pelophylax mongolius in Gansu and Qinghai Province
In this study,a total of 10 specimens were collected on 2 separate occasions from Yongjing County in Gansu Province,and Minhe Hui and Tu Autonomous County in Haidong City,Qinghai Province.Morphologic-al comparison confirms that all specimens exhibit the following characteristics:a triangular head with the head length slightly greater than the head width,smooth skin,black spots on the back,a light green longitudinal line ex-tending from the tip of snout to vent,well-developed jaw glands,round eardrums with diameter larger than eye diameter,short and stout hind limbs,blunt and rounded toe tips,and fully webbed toes without notches.The mor-phological characteristics of the 10 specimens were similar to those of Pelophylax mongolius(Schmidt,1925)from Tumd Right Banner,Baotou City,Inner Mongolia(type locality of P.mongolius).Phylogenetic analysis based on concatenated gene fragments of 16S rRNA,12S rRNA,COI and Cytb showed that the ten specimens clustered to-gether with P.mongolius with short genetic distance(p-distance=1.9%).We confirm that the ten specimens rep-resent new distribution records for P.mongolius in Gansu and Qinghai Province.

PelophylaxPelophylax mongoliusnew distribution recordphylogenydistribution range

田瑞、张得宁、袁智勇、周炜帏

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西南林业大学云南省高校极小种群野生动物保育重点实验室,云南 昆明 650233

青海山水自然资源调查规划设计研究院,青海西宁 810008

西南大学生命科学学院,淡水鱼类资源与生殖发育教育部重点实验室,重庆 400715

兰州大学生态学院,草种创新与草地农业生态系统全国重点实验室,甘肃兰州 730000

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侧褶蛙属 蒙侧褶蛙 新纪录 系统发育 分布范围

2024

西南林业大学学报
西南林业大学

西南林业大学学报

CSTPCD北大核心
影响因子:0.773
ISSN:2095-1914
年,卷(期):2024.44(11)