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1.
本文记述寄蝇科丛毛寄蝇族一新属,类梳寄蝇属Isopexopsis gen.nov.一新种,侧颜类梳寄蝇I.parafacialis sp.nov.,并绘制了相应的特征图,模式标本保存于中国科学院动物研究所。  相似文献   

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本文记述管巢蛛属Clubiona6新种,即环管巢蛛Clubionacirculatasp.nov.,双齿管巢蛛Clubionadidentatasp.nov.,丝歧管巢蛛Clubionafiloramulasp.nov.,异管管巢蛛Clubionaheteroductasp.nov.,曲管巢蛛Clubionatortuosasp.nov.,横列管巢蛛Clubionatransversasp.nov.。  相似文献   

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本文记述管巢蛛属Clubiona6新种,即环管巢蛛Clubiona circulata sp.nov,以齿管巢蛛Chubiona didentata sp.nov,丝歧管巢蛛Clubiona filoramula sp.nov,异管管巢蛛Clubiona heteroducta sp.nov.,曲管巢蛛Clubiona tortuosa sp.nov,列管巢蛛Clubiona transversa  相似文献   

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记述了我国艾蛛属4新种,名称为,柱艾蛛Cyclosacylindratasp.nov畸形艾蛛C.informissp.nov.小艾蛛C.minorsp.nov.,五突艾蛛C.pentatuberculatasp.nov。  相似文献   

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本文记述神农架地区隙蛛属和蟋蛛属的蜘蛛三新种:珍珠隙蛛Coelotes baccatus sp.nov.;距形隙蛛Coelotes calcariformissp.nov.;象牙蟠蛛Cicurina eburnussp.nov.。  相似文献   

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本文记述浙江省庆元地区百山祖山区产蝇科四新种,分别命名为葫尾秽蝇Coenosia lagenicauda sp.nov.,匙叶秽蝇Coenosia spatulisforceps sp.nov.大秽蝇Coenosia grandis sp.nov.和山栖秽蝇Coenosiaw monticola sp.nov。等。  相似文献   

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冯炎  薛万琦 《四川动物》1997,16(4):153-157
本文报道四川秽蝇亚科Coenosiinae秽蝇族 Coenosiini4新种;短指秽蝇,新种Coenosia brachyodactyla sp.nov.;虎爪溜芒蝇,新种Caricea ungulitigris sp.nov.;后侧叶溜芒蝇,新种Caricea postifolifera sp.nov;寒溜芒蝇,新种Caricea frigida sp.nov。模式标本存沈阳师范学院昆虫研究所。  相似文献   

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叶刺瘿螨亚科四新种记述(蜱螨亚纲:瘿螨科)   总被引:1,自引:0,他引:1  
本文记述叶刺瘿螨亚科4新种:长瘤上三脊瘿螨Calepitrimerus longitubereris sp.nov.,梅叶刺瘿螨Phyllocoptes mume sp.nov.,柿丽瘿螨Calacarus diospyris sp.nov.和拟福刺瘿螨Aculus parafockeui sp.nov.,附有形态特征图。  相似文献   

9.
记述脊额叶蝉属Carinata4新种,即:周氏脊额叶蝉C.choui,sp.nov.;短地蝉C.brachy furcata,sp。nov.;倒钩脊额叶蝉C.barbulata,sp.nov.及双突脊额叶蝉C.bifurca,sp。nov.模式标本分别保存在西北农业大学昆虫博物馆,中国科学院动物研究所和中山大学。  相似文献   

10.
本文描述云南省叉Chi科五新种:其中劳Chi属LobocaeciliusLeeetThornton1种;四裂劳ChiL.quadripartitussp.nov.蛇Chi属OphidodpeonaEnderlein1种;波纹蛇ChiO.fuctosasp.nov.,异Chi属HeterocaeciliusLeeandThornton3种;八斑异ChiH.octomaculatussp.nov.,景  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   

18.
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   

20.
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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