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1.
滇西横断山地区台蚱属三新种(直翅目,蚱科)   总被引:1,自引:3,他引:1  
记述云南省西部横断山地区台蚱属3新种,即香格里拉台蚱Formosatettix xianggelila sp.nov.,凹缘台蚱Formosatettix camurimargina sp.nov.及无量山台蚱Formosatettix wuliangshanensia sp.nov..此外还记载因异物同名而改名的拟双背蚱属Paramphinotus.模式标本保存于西南林学院昆虫标本室.  相似文献   

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中国台蚱属三新种:(直翅目:蚱科)   总被引:9,自引:1,他引:9  
郑哲民 《动物学研究》1992,13(4):323-327
本文记述采自云南、广西及西藏地区蚱科三新种,即云南台蚱Formosatettix yunnanensis sp.nov.,短背台蚱Formosatettix brachynotus sp.nov.和短角台蚱Formosatettix brevicornus sp.nov.。  相似文献   

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滇西北玉龙雪山地区蚱总科昆虫及四新种(直翅目)   总被引:1,自引:0,他引:1  
记述2005~2006年在云南省玉龙雪山地区调查的蚱总科昆虫3科8属19种,其中包括4新种,即短翅蚱Tetrix brevipennis,sp.nov.、白斑台蚱Formosatettix albomaculata,sp.nov.、雪山台蚱Formosatettix xueshanensis,sp.nov.及丽江悠背蚱Euparatettix lijiangensis,sp.nov.。模式标本保存于西南林学院标本馆昆虫标本室及陕西师范大学动物研究所。  相似文献   

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本文记述采自广西地区台蚱屑二新种,即大瑶山台蚱Formosatettix dayaoshanensis,sp.nov.及元宝山台蚱Formosatettix yuanbaoshanensis,so.nov.  相似文献   

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湖北省直翅目三新种(直翅目)   总被引:3,自引:0,他引:3  
记述采自湖北省九宫山及武当山地区直翅目昆虫3新种,即橙股卵翅蝗Caryanda byrrhofemura,sp.nov.,九宫山澳汉蚱Austrohancokia jiugongshanensis,sp.nov.及幕阜山台蚱Formosatettix mufushanensis,sp.nov.。此外记述贺兰台蚱Formosatettix helanshanensis Zheng的雄性。  相似文献   

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云南省西南部蚱科的新种(直翅目)   总被引:1,自引:3,他引:1  
记述云南省西南部蚱科7新种,即云南夏蚱Xiaitettix yunnanensis Zheng et Mao,sp.nov.、粗角版纳蚱Bannatettix oedicerus Zheng et Xu,sp.nov.、断隆蚱Tetrix interrupta Zheng et Xu,sp.nov.、五老山台蚱Formosatettix wulaoshanensis Zheng et Xu,sp.nov.、宽顶突眼蚱Ergatettix lativertex Zheng et Xu,sp.nov.、孟连悠背蚱Euparatettix menglianensis Zheng et Xu,sp.nov.及白斑悠背蚱Euparatettix albomaculatus Zheng et Xu,sp.nov.。模式标本保存于陕西师范大学动物研究所昆虫标本室。  相似文献   

7.
记述采自云南省德宏州瑞丽蚱科2新种,即瘤背柯蚱Coptotettix torulidosalis sp.nov.及郑氏台蚱Formosatettixzhengi sp.nov.。前者模式标本保存于西南林业大学标本馆及陕西师范大学动物研究所昆虫标本室,后者模式标本保存于西南林业大学标本馆。  相似文献   

8.
中国蚱科两新种记述(直翅目:蚱总科)   总被引:6,自引:2,他引:4  
记述蚱科Tetrigidae 2新种,即黑背尖顶蚱Teredorus benotus ,sp.nov.及天目山台蚱Formosatettix tianmushanensis,sp.nov。模式标本保存于南开大学生物系昆虫标本室。  相似文献   

9.
广东省蚱总科二新种记述(直翅目)   总被引:1,自引:0,他引:1  
记述采自广东省北部南岭山区蚱总科2新种,即短翼蚱科的齿股玛蚱Mazarredia serrifemura,sp.nov.及蚱科的南岭台蚱Formosatettix ngnlingensis,sp.nov..模式标本保存于陕西师范大学动物研究所.  相似文献   

10.
中国台蚱属的研究(直翅目,蚱科)   总被引:6,自引:3,他引:3  
对分布于中国、日本、俄罗斯、尼泊尔及邻近国家的台蚱属种类进行了研究和订正,记述了采自四川省的1新种,峨屑台蚱Formosatettix omeiensis sp.nov.,提供了台蚱属分种检索表及分布于中国种类的情况.新种的模式标本保存于中国科学院动物研究所标本室.  相似文献   

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It has now been over twenty years since a novel herpesviral genome was identified in Kaposi's sarcoma biopsies. Since then, the cumulative research effort by molecular biologists, virologists, clinicians, and epidemiologists alike has led to the extensive characterization of this tumor virus, Kaposi's sarcoma-associated herpesvirus(KSHV; also known as human herpesvirus 8(HHV-8)), and its associated diseases. Here we review the current knowledge of KSHV biology and pathogenesis, with a particular emphasis on new and exciting advances in the field of epigenetics. We also discuss the development and practicality of various cell culture and animal model systems to study KSHV replication and pathogenesis.  相似文献   

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Comprises species occurring mostly in subtidal habitats in tropical, subtropical and warm-temperate areas of the world. An analysis of the type species, V. spiralis (Sonder) Lamouroux ex J. Agardh, a species from Australia, establishes basic characters for distinguishing species in the genus. These characters are (1) branching patterns of thalli, (2) flat blades that may be spiralled on their axis, (3) width of the blade, (4) primary or secondary derivation of sterile and fertile branchlets and (5) position of sterile and fertile branchlets on the thalli. Application of the latter two characters provides an important basic method for separation of species into three major groups. Osmundaria , a genus known only in southern Australia, was studied in relation to Vidalia , and its separation from the Vidalia assemblage is not accepted. Species of Vidalia therefore are transferred to the older genus name, Osmundaria. Two new species, Osmundaria papenfussii and Osmundaria oliveae are described from Natal. Confusion in the usage of the epithet, Vidalia fimbriala Brown ex Turner has been clarified, and Vidalia gregaria Falkenberg, described as an epiphyte on Osmundaria pro/ifera Lamouroux, is revealed to be young branches of the host, Osmundaria prolifera.  相似文献   

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Fifteen chromosome counts of six Artemisia taxa and one species of each of the genera Brachanthemum, Hippolytia, Kaschgaria, Lepidolopsis and Turaniphytum are reported from Kazakhstan. Three of them are new reports, two are not consistent with previous counts and the remainder are confirmations of very scarce (one to four) earlier records. All the populations studied have the same basic chromosome number, x = 9, with ploidy levels ranging from 2x to 6x. Some correlations between ploidy level, morphological characters and distribution are noted.  相似文献   

19.
肝癌中HBV和HCV基因和抗原的分布及意义   总被引:1,自引:0,他引:1  
采用原位分子杂交方法检测HCV RNA及HBV X基因;采用免疫组织化学方法研究HCV核心抗原,非结构区C33c抗原及HBxAg在肝细胞肝癌中的定位及分布.结果表明(1)HCV RNA、HBV X基因在肝细胞肝癌组织检出率分别为40%(55/136)和82%(112/136).HCV RNA定位于癌细胞的胞浆内,阳性细胞呈散在、灶状及弥漫分布三种形式;HBV X基因在肝癌细胞中的分布呈胞浆型、核型及核浆型,阳性细胞也呈上述三种分布形式;(2)HCV C33c抗原、核心抗原在肝细胞肝癌中的阳性率为81%(133/164)及86%(141/164).C33c抗原定位于癌细胞及肝细胞的胞浆内;核心抗原既定位于癌细胞核中,又可定位于胞浆中.C33c抗原阳性细胞以灶状分布为主;而核心抗原阳性细  相似文献   

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For a plant selection model with frequency-independent viabilities, fertilities and selfing rates, it is shown that apart from global fixation, for certain parameter combinations a protected polymorphism and facultative fixation (either allele may become fixed according to initial frequencies) may both occur. Facultative fixation requires different selling rates for the dominant and recessive type. Protection of the polymorphism requires resource allocation for male and female function. In this connection the problem of purely genetically caused population extinction is discussed.
For general frequency dependence and regular segregation, the chances for establishment of a completely recessive gene are compared to those of a completely dominant gene. It is proven that the process of establishment of the recessive gene, despite a fitness advantage, may be considerably endangered by drift effects if random mating prevails. The recessive gene may reach the same effectivity in establishment as a dominant gene, only if the recessive homozygote mates exclusively with its own type during the period of establishment.  相似文献   

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