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国家自然科学基金(31201702)

作品数:3 被引量:6H指数:2
相关作者:江建平丁利王斌更多>>
相关机构:生态环境部南京环境科学研究所西南石油大学中国科学院成都生物研究所更多>>
发文基金:国家自然科学基金更多>>
相关领域:生物学更多>>

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Leptobrachium bompu(Amphibia,Anura,Megophryidae)Discovered in Upper Medog,Tibet,China with Descriptions of its Tadpoles,Advertisement Calls and Systematic Position被引量:2
2017年
Leptobrachium bompu Sondhi and Ohler, 2011 was described based on a single specimen collected from Eaglenest in southern slope of Himalaya(holotype: No. KA0001/200905). In April, 2014, seven adults and three tadpoles of Leptobrachium bompu were collected from upper Medog, Tibet, China since most the morphological characters of the adult frogs matched the species Leptobrachium bompu, while the tadpoles mentioned above were determined as the same species as the adults by molecular systematics analysis. Three types of iris coloration were found in the seven adult specimens and two types of spiraculum in the three tadpoles. Advertisement calls usually had 6-8 notes and the fundamental frequency ranged from 1076 to 1466 Hz. All the specimens collected at upper Medog were clustered as one lineage with very low genetic variation and located at the base of the phylogenetic tree of the genus Leptobrachium.
Xixi LIANGWulin LIUBin WANGLi DINGJianpu WUFeng XIEJianping JIANG
关键词:角蟾科
A New Species of Genus Microhyla(Amphibia: Anura: Microhylidae) from Zhejiang Province, China被引量:4
2018年
We described a new species, Microhyla beilunensis sp. nov., from Zhejiang Province of China. Phylogenetic analyses based on the mitochondrial 12 S, 16 S and CO1 gene sequences suggested that the new taxon was distinctly separated from its congeners and closed to M. mixtura and M. okinavensis. Morphologically, the new species could be identified from its congeners except M. mixtura by several characters:(1) rudimentary webs on toe base;(2) absence of disks and dorsal median longitudinal grooves on finger tips;(3) presence of disks and dorsal median longitudinal grooves on toe tips. As well, the new species could be identified from topotype M. mixtura by the combination of characters:(1) apart from the stripes, bar-shaped and oval-shaped patterns, the rounded spots present on the dorsum of body and legs;(2) the outer metacarpal tubercles prominently larger than the inner one;(3) of males, the ratios of HW, IND, UEW and LAW to SVL of the new species were significantly larger than those of M. mixtura(P < 0.01), and the ratios of SL, IOD, LAHL, HLL, TL, TFL and FL to SVL of the new species were significantly less than those of M. mixtura(P < 0.05).
Meihua ZHANGLiang FEIChangyuan YEYufan WANGBin WangJianping JIANG
关键词:新种类种系发生TFL
重庆市城口县大巴山国家级自然保护区发现宁陕线形蛇与该物种的遗传分化分析
2019年
宁陕线形蛇Stichophanes ningshaanensis Yuan,1983是游蛇科Colubridae的单型属单型种,为中国特有种,至今仅被报道分布于陕西省宁陕县火地塘(模式产地)、湖北省神农架国家级自然保护区和重庆市五里坡国家级自然保护区。目前对该物种的研究和野外采集记录甚少。2017年7月8日,在重庆市城口县大巴山国家级自然保护区采到1号疑似宁陕线形蛇的雌性成体标本。经形态比较和分子系统发育分析,鉴定为宁陕线形蛇。基于线粒体细胞色素b(cyt b)基因和核基因片段cmos的系统发育分析表明,城口大巴山标本嵌入宁陕线形蛇支系中,与该物种其他种群在cyt b基因上的遗传距离(0.001~0.009)远小于与其近缘种的(0.174~0.292)。本研究揭示宁陕线形蛇种群间存在形态和遗传上的分化。形态上,城口大巴山标本上唇鳞数量为5/5,而神农架和火地塘种群均为6/6,前者尾下鳞数量为61对,少于后者(64~73对)。在cyt b基因上,3个种群各自拥有1个单倍型。城口大巴山单倍型与湖北神农架单倍型之间有1个突变、与宁陕火地塘单倍型之间有9个突变,而分子系统树支持宁陕火地塘种群与湖北神农架种群关系更近。研究结果为宁陕线形蛇的地理分布和系统学研究提供了重要信息。
陈泽柠贺捷吴军江建平丁利王斌
关键词:种群分化系统发育
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