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1.
小弧斑姬蛙在河南的发现   总被引:2,自引:0,他引:2       下载免费PDF全文
报道了采自河南商城的一种姬蛙标本,与河南已知的合征姬蛙(Microhyla mixtura)和饰纹姬蛙(M.ornata)差异明显,鉴定为小弧斑姬蛙(M.heymonsi)。商城应是该物种已知分布区的北界,其分布区已北伸至北亚热带。  相似文献   

2.
郭超文  董永文 《遗传》1987,9(6):12-14
姬蛙属(Microh yla)为小型娃类,我国姬蛙 属现已知有6个种,本文研究了黄山小弧斑姬 L蛙(Micro仰la heymon的的染色体组型和Ag- NORs,以期对姬蛙属的遗传、进化、系统分类 等的研究提供有关的资料。  相似文献   

3.
小弧斑姬蛙的染色体组型及Ag-NORs研究   总被引:3,自引:0,他引:3  
姬蛙属(Microhyla)为小型蛙类,我国姬蛙属现已知有6个种,本文研究了黄山小弧斑姬蛙(Microhyla heymonsi)的染色体组型和Ag-NORs,以期对姬蛙属的遗传、进化、系统分类等的研究提供有关的资料。 材料及方法 小弧斑姬蛙(10♂、13♀)捕自安徽黄山。以四肢骨骨髓细胞为材料。染色体标本的制备  相似文献   

4.
采用静态换水法研究了杀虫剂敌敌畏、除草剂丁草胺对饰纹姬蛙(Microhyla ornata)蝌蚪的急性毒性影响。结果表明,杀虫剂敌敌畏对饰纹姬蛙蝌蚪的24-h、48-h的半致死浓度(LC50)分别为3.91μl/l和1.97μ/l;除草剂丁草胺对饰纹姬蛙蝌蚪的24-h LC50和48-h LC50分别为3.37μl/1和1.88μl/1,饰纹姬蛙蝌蚪对丁草胺的敏感性稍大于敌敌畏。  相似文献   

5.
对分布于我国的3种姬蛙:饰纹姬蛙Microhyla ornata、粗皮姬蛙M. butleri和小弧斑姬蛙M. heymonsi的骨骼系统进行了比较研究.研究发现这3种蛙的第8椎体皆为双凹型,属参差型椎体;左、右上喙软骨在中线处愈合,属典型的固胸型肩带;3种姬蛙的前喙骨、锁骨以及前胸骨都不同程度地退化甚至缺失;后胸骨保留较为完整,并且3种姬蛙的后胸骨有较为明显的差异.对姬蛙科中相关的成员进行了简单比较.  相似文献   

6.
2015年7月—2017年5月,对饰纹姬蛙Microhyla fissipes的人工驯养体系(饲养环境和饵料选择等)和繁殖(繁殖行为和人工催产等)开展了相关研究。观察发现,饰纹姬蛙繁殖期为3—10月,其中,5—8月为繁殖高峰期;同一对亲本每年可繁殖5次,2次繁殖间隔时间最短为16 d;卵团含卵量为15~1 100枚(310枚±203枚,n=98),与雌性亲本的体质量显著正相关(R~2=0.44,P0.001,n=76)。在人工驯养过程中初步建立了良好的饲养管理体系,其中饵料体系是"熟蛋黄-螺旋藻粉(饲喂蝌蚪)-跳虫(饲喂刚变态的幼蛙)-残翅果蝇(饲喂亚成体和成体蛙)",同时获得了饰纹姬蛙人工催产的最佳实验条件。该成果不仅可为饰纹姬蛙的研究工作提供适宜的实验材料,促进该物种的模式化进程,也可为无尾两栖动物的实验室驯化提供参考。  相似文献   

7.
天台蛙和合征姬蛙的核型及其银染色研究   总被引:1,自引:0,他引:1       下载免费PDF全文
郭超文  董永文 《遗传》1991,13(2):6-8
本文报道了天台蛙和合征姬蛙的核型和Ag-NORs。用骨髓细胞为实验材料,采用离心法或蒸气固定法制作染色体标本。结果:天台蛙2n=26,由5对大型染色体和8对小型染色体组成,其中有2对st染色体,6对sm染色体和5对m染色体。No.11染色体上有一恒定的次组痕;合征姬蛙2n=24,包括6对大型染色体和6对小型染色体,除NO-3为st染色体外,其余的均为m染色体。一对次绕痕位于No.9染色体长臂上。天台蛙和合征姬蛙的Ag-NoRs分别位于No.11和No.9染色体的次槛痕区,未见有扩增现象。  相似文献   

8.
本文首次报告小弧斑姬蛙的生殖频次。在人工饲养条件下,从5月至9月,6只供试的雌蛙中有2只产卵2次,3只产卵3次,1只产卵4次。事实表明小弧斑姬蛙是一年多次产卵的蛙类。  相似文献   

9.
正斑姬啄木鸟(Picumnus innominatus)隶属啄木鸟目(Piciformes)啄木鸟科(Picidae)姬啄木鸟属(郑光美2017)。国外分布于印度东部至中南半岛的广大地区以及苏门答腊、婆罗洲等地,国内分布于长江以南各省,北至甘肃南部、陕西南部、河南南部,西至四川(杨岚等1995)。栖息于热带低山混合林的枯枝或树枝上(约翰·马敬能等2000)。多见单个活动于林下灌木和竹丛中,食物以昆虫为主(杨岚等1995)。目前,关于斑姬啄木鸟的繁殖资料极为匮  相似文献   

10.
2017年和2018年的4月在浙江九龙山国家级自然保护区发现一种姬蛙,经形态学比较、16S rRNA序列比对及系统发育分析,鉴定为北仑姬蛙(Microhyla beilunensis),是该种的地理新分布。通过测量31只成体(25雌和6雄)的体长、头长、头宽、吻长、鼻间距、眼间距、眼径、前臂及手长、后肢全长和足长10个形态指标,研究该种的两性异形。结果显示,该种具有雌性大于雄性的个体大小两性异形;体长之外的9个局部形态特征均与体长成正相关,去除体长效应后,北仑姬蛙雄蛙前臂及手长显著大于雌蛙,其余形态特征在两性间均无差异;主成分分析(特征值≥1)显示,头长、头宽、吻长、鼻间距、眼间距、眼径、前臂及手长、后肢全长和足长等9个特定体长的形态变量辨析出两个主成分,共解释了原始数据52.5%的变异,头宽和前臂及手长在第一向量上具有较高的正负载系数,且两性形态在第一向量上差异显著,这表明头宽和前臂及手长可用于区分雌雄个体。  相似文献   

11.
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).  相似文献   

12.
徐梦阳  徐剑 《四川动物》2012,31(4):589-592,689
初步观察记录了饰纹姬蛙Microhyla ornata胚后发育过程。饰纹姬蛙的卵采于广东韶关小坑国家森林公园,置于人工实验缸中自然孵化,在23.0~28.7℃水温条件下观察饰纹姬蛙蝌蚪胚后发育的过程。该蛙的胚后发育可以分为19期,历时31.1d,对其后肢芽、趾、前肢的发育,以及肛管及尾的变化等方面做了系统的描述,饰纹姬蛙蝌蚪的头长、体长、尾长和后肢长度随发育时间的增加而显著增长。  相似文献   

13.
To survey the diversity of anuran species in Bangladesh, we compared mitochondrial 16S rRNA gene sequences (approximately 1.4 kbp) from 107 Bangladesh frog specimens. The results of genetic divergence and phylogenetic analyses incorporating data from related species revealed the occurrence of at least eight cryptic species. Hoplobatrachus tigerinus from two districts diverged considerably, indicating the involvement of a cryptic species. Two Fejervarya sp. (large and medium types) and Hylarana cf. taipehensis formed lineages distinct from related species and are probably new species. Microhyla cf. ornata differed from M. ornata with respect to type locality area and involved two distinct species. In addition, we found that Hylarana sp. and Microhyla sp. did not match congeners examined to date in either morphology or 16S rRNA sequence. The occurrence of M. fissipes was tentatively suggested. Consequently, at least, 19 species were found from Bangladesh in this study. These findings revealed a rich anuran biodiversity in Bangladesh, which is unexpected considering the rather simple topographic features of the country.  相似文献   

14.
泽蛙、日本林蛙、饰纹姬蛙不同地理居群的核型多样性   总被引:5,自引:0,他引:5  
钱晓薇  朱睦元 《遗传》2000,22(3):144-148
本文研究了温州地区的泽蛙、日本林蛙、饰纹姬蛙的核型,并分析了9个地理居群泽蛙的核型、4个地理居群日本林蛙的核型和3个地理居群饰纹姬蛙的核型。结果表明,不同地理居群的同种蛙均有相同的染色体数和核型模式。泽蛙、日本林蛙都为 2n=26,NF=52,核模式5+8;饰纹姬蛙 2n=24,NF=48,核模式6+6。但同一种蛙的不同地理居群之间在SM数目和顺序、次缢痕或随体的位置等都有所不同,说明不同地理居群的同种蛙的染色体具有丰富的多样性。故保护蛙品种资源多样性,不仅要从整个群体上考虑,而且要针对每个品种(或类群)进行保护。 Abstract:The karyotypes of Rana limmocharis boie,Rana j.Japonica,and Microhyla ornata from Wenzhou were studied.The karyotypes of nine populations of Rana limmocharis boie,four populations of Rana j.Japonica and three populations of Microhyla ornata from different geographical regions were compared.The results demonstrated that the same species of different geographical populations have the same amount of chromosome and karyotypic formulae. Rana limmocharis boie and Rana j.Japonica have 2n=26,NF=52 and 5+8 karyotypic formulae.Microhyla ornata has 2n=24,NF=48 and 6+6 karyotypic formulae.But some dissimilarities were found among them.First,the number and sequence of submetacentric chromosome were different among them,and then the secondary contriction (SC)or satellite (Sat)were also different.It was showed that the chromosomes of same species of different geographical population have diversities.Conservation of frog genetic diversity must be considered of not only the genetic diversity conservation of the total frog population but also that of every frog breed.  相似文献   

15.
A molecular phylogenetic survey was conducted using mtDNA sequences of 12S and 16S rRNA, and cyt-b genes to examine taxonomic relationships among populations of the Pan-Oriental microhylid, Microhyla ornata, from India, Bangladesh, Thailand, Laos, China, Taiwan, and the Ryukyu Archipelago of Japan. Two discrete clades are recognized within this species, one consisting of populations from India and Bangladesh, and the other encompassing the remaining populations. In the latter clade, populations from the Ryukyu Archipelago are clearly split from the rest (populations from Taiwan and the continent) with considerable degrees of genetic differentiations. Each of the three lineages is judged to represent a good species, and the name Microhyla ornata is restricted to the South Asian populations. For the populations from Taiwan and a wide region from China to Southeast Asia, the name Microhyla fissipes should be applied, whereas the Ryukyu populations are most appropriately referred to as Microhyla okinavensis, although further substantial genetic differentiations are recognized among some island group populations within this last species.  相似文献   

16.
罗键  高红英  罗钰 《四川动物》2007,26(4):822-826
1996~2007年对四川省资阳市的两栖爬行动物资源进行了初步调查,发现两栖类7种,其中有尾目1种,无尾目6种;爬行类18种,其中龟鳖目2种,有鳞目蜥蜴亚目5种、蛇亚目11种,其中包括新记录1科3属5种。建议加强对该市两栖爬行动物物种多样性及其生境的保护,合理利用两栖爬行动物资源。  相似文献   

17.
张宜  王军  吴秀元 《古生物学报》2006,45(2):265-267
描述河南固始杨山煤矿下石炭统杨山组的一个华夏木新种Cathaysiodendronyangshanensesp.nov.,这是近年来继在甘肃靖远早石炭世臭牛沟组中发现华夏木之后该属在早石炭世地层中的又一发现。华夏木属是华夏植物群的特有分子,它在早石炭世的发现对探讨华夏植物群的起源有重要意义。  相似文献   

18.
江西桃红岭梅花鹿国家级自然保护区自成立以来,一直未进行过两栖动物资源调查。为掌握两栖动物本底资源现状,评价当地的生物多样性,作者于2005年4月下旬至5月上旬、8月中旬、2006年7月下旬,前后3次对该保护区两栖动物资源进行了实地调查。保护区现已记录两栖动物19种,隶属2目7科,占江西省39种两栖动物的48.72%。其中以16种东洋界物种为主,广布种3种,无古北界物种。东洋界物种包括10种华中区与华南区共有种及6种华中区物种。这种动物区系组成特点与保护区在动物地理区划上属东洋界华中区东部丘陵平原亚区一致。此次考察增加赣北(鄱阳湖)平原省两栖动物新纪录6种,分别是中国雨蛙(Hyla chinensis)、弹琴蛙(Hylarana adenopleura)、阔褶水蛙(H.latouchii)、花臭蛙(Odorrana schmackeri)、斑腿树蛙(Rhacophorus megacephalus)和小弧斑姬蛙(Microhyla heymonsi)。最后,结合调查结果对保护区内两栖动物的分布和资源现状进行了分析。  相似文献   

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