福建龙岩发现寒露林蛙
作者:
作者单位:

1 厦门大学环境与生态学院,滨海湿地生态系统教育部重点实验室 厦门 361102;2 南京林业大学生命科学院 南京 210037;3 福建梅花山国家级自然保护区管理局 龙岩 364201

作者简介:

冯金英,女,硕士研究生;研究方向:动物生态学;E-mail: fengying3976@163.com。

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中图分类号:

Q959

基金项目:

福建梅花山国家级自然保护区管理局课题(No. 20243160A0266);


Rana hanluica Found in Longyan, Fujian, China
Author:
Affiliation:

1 Key Laboratory of the Coastal and Wetland Ecosystems of Ministry of Education, College of the Environment and Ecology, Xiamen University, Xiamen 361102; 2 College of Life Sciences, Nanjing Forestry University, Nanjing 210037; 3 Administration of Fujian Meihua Mountain National Nature Reserve, Longyan 364201, China

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    摘要:

    2024年10月在福建省龙岩市上杭县梅花山国家级自然保护区采集到4号蛙属(Rana)物种标本。标本头体长59.74 ~ 63.04 mm,头长大于头宽,吻端钝尖,明显超出下唇;前臂及手长不及体长一半;后肢长,前伸贴体时胫跗关节超出吻端;股部背面具有9或10条整齐细窄黑褐色横纹,无雄性线,形态特征与寒露林蛙(R. hanluica)基本一致。基于线粒体16S rRNA基因片段进行的系统发育分析结果表明,此次采集的标本与广西、重庆和湖南的寒露林蛙聚成一支,未校正的遗传距离为0,远小于样本与属内其他物种间的最小遗传距离(2.20%)。综合形态特征和系统发育比较分析的结果,本次采集的样本确定为寒露林蛙,系福建省两栖动物分布新记录种。

    Abstract:

    During a field survey of amphibians in Meihua Mountain National Nature Reserve, Longyan City, Fujian Province in October 2024, four specimens (1 male and three females) of Rana were collected. The study aims to accurately identify the species of these specimens through morphological and phylogenetic comparisons, enriching the diversity of amphibians in Fujian Province. Morphological identification was performed by comparing the diagnostic features described in the database of Amphibia China (http://www.amphibiachina.org/), as well as by comparing the measurements of 23 morphological indicators. Meanwhile, molecular phylogenetic identification was performed based on mitochondrial 16S ribosomal RNA (16S rRNA) gene fragments. The 16S rRNA gene fragments were amplified with primer pairs of L3975: 5′-CGC CTG TTT ACC AAA AAC AT-3′ and H4551: 5′-CCG GTC TGA ACT CAG ATC ACG T-3′. Corresponding sequences of 37 species of Rana were downloaded from GenBank (Table 1) and R. luteiventris and R. muscosa were selected as outgroups. DNA sequences were aligned and trimmed by Clustal W and the nucleotide substitution model GTR + I + G was selected based on the Bayesian information criterion (BIC) in MEGA 11. RaxmlGUI 2.0 and MrBayes 3.2.4 were used to build maximum likelihood (ML) and Bayesian inference (BI) phylogenetic trees, respectively. The uncorrected genetic distances within Rana were calculated via MEGA 11. The measurements of 23 morphological indicators were shown in Table 2, which indicated that snout-vent length of the collected specimens ranged from 59.74 to 63.04 mm; the head length was longer than the head width, and the snout was blunt pointed, obviously extending beyond the lower lip; the lengths of lower arm and hand were less than half of the body length; the hindlimbs were long, and the tibial tarsal joint extended anteriorly beyond the snout. The characteristics of skin and coloration: dorsal skin smooth, with scattered brown maculations in females; ventral skin smooth, light yellow, throat with scattered red punctate speckles and the posterior femur and its ventral surface with flat tubercles; dorsal and lateral surface olive-yellow in breeding males and reddish brown in breeding females; the dorsal skin on both hindlimbs with 9 or 10 neat and narrow black-brown horizontal stripes, without male lines (Figs. 1, 2). The morphological characteristics are consistent with the diagnosis characteristics of R. hanluica. Additionally, our specimens are larger than the topotype and those collected from other localities (Table 3). The new sequences of our specimens were deposited in GenBank with the accession number PQ608565﹣PQ608568. The BI and ML phylogenetic trees based on 16S rRNA gene fragments had identical topologies, which showed that our specimens and R. hanluica from Guangxi, Chongqing, and Hunan formed a monophyletic clade with the posterior probability of 0.99 and bootstrap support value of 100% (Fig. 3). The uncorrected p-distances among them were zero, which were much smaller than the minimum genetic distance (2.20%) between these samples and other Rana species. Based on the comprehensive comparisons of morphology and phylogenetics, the collected specimens were identified as R. hanluica, a newly record species of amphibian in Fujian Province. This discovery further enriches the geographical distribution information of R. hanluica and the diversity of amphibians in Fujian Province.

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冯金英,王鹤霖,王臻祺,钟鸿辉,林清贤,周晓平. 2025.福建龙岩发现寒露林蛙. 动物学杂志, 60(6): 927-936.

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  • 收稿日期:2025-01-14
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  • 在线发布日期: 2025-12-20
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