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1.
本文报道采自武陵山区萤叶甲亚科额凹萤叶甲属Sermyloides一新种:王氏额凹萤叶甲S.wangi sp.nov.。  相似文献   

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中国大萤叶甲属的研究(鞘翅目:叶甲科:萤叶甲亚科)   总被引:1,自引:0,他引:1  
大萤叶甲属Meristata 为Chapuis 1875年所建立,是东洋区分布的属,在我国主要分布在云南和西藏两省,中名以其体大型而得。目前全世界已知11种,中国有9种。本文对本属征进行了重新厘订,并对中国种类做了系统的研究及记述,它们是褐大萤叶甲Meristata dohrni (Baly), 长大萤叶甲Meristata elongata (Jacoby), 黑斑大萤叶甲Meristata fallax (Harold), 黑胸大萤叶甲Meristata fraternalis fraternalis (Baly), 黑胸大萤叶甲云南亚种Meristata fraternalis yunnanensis (Laboissiere), 象牙大萤叶甲Meristata pulunini (Bryant), 四带大萤叶甲Meristata quadrifasciata (Hope), 六斑大萤叶甲Meristata sexmaculata (Kollar et Redtenbacher), 黄腹大萤叶甲Meristata spilota (Hope)。亦对Meristata fraternalis yunnanensis 的分类地位进行了探讨,根据其鞘翅斑点及其雄性生殖器形状将原Meristata yunnanensis 降为Meristata fraternalis 的亚种。  相似文献   

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本文是柱萤叶甲属研究报告之二,报道了前胸背板黑色的五新种:阿波柱萤叶甲Gallerucida apurvella sp.nov.,黑龙江柱萤叶甲G.heilongjiangana sp.nov.,双刻柱萤叶甲G.nothornata sp.nov.,褐足柱萤叶甲G.postifusca sp.nov.,及凹头柱萤叶甲G.solenocephala sp.nov.。  相似文献   

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本文是云南西双版纳地区萤叶甲亚科区系研究的一部分,记述了3新种及中国3新纪录种,它们分别为:云南萤叶甲Galeruca yunnana Yang etLi,sp.nov.、毛殊角萤叶Agetocera similis Chen,sp.nov.、黄胸摹萤叶甲Munina flavida Yang et Yao,sp.nov.以及罗氏阿波萤叶甲Aplosonyx robinsoni(Jacoby,19  相似文献   

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本文对阿波萤叶甲属的属征作了补充描述,并了采自我国武陵山区的二新种,头阿波萤叶甲及天平山阿波萤叶甲。  相似文献   

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本文记述萤叶甲亚科两个新种,分隶于凹翅萤叶甲属Paleosepharia Laboissière和隶萤叶甲属Lirotis Weise.前者采自云南贡山,后者采自四川峨眉山。新种模式标本保存在中国科学院动物研究所。  相似文献   

7.
本文对阿波萤叶甲属Aplosonyx的属征作了补充描记,并记述了采自我国武陵山区的二新种,黑头阿波萤叶甲A.nigricepssp.nov.及天平山阿波萤叶甲A.tianpingshanensissp.nov.。  相似文献   

8.
本文记述发现于福建武夷山的萤叶甲亚科1新种:棒角日萤叶甲Japonitata clavata Yang et Wu,sp.nov.。新种模式标本存在中国科学院动物研究所  相似文献   

9.
陈世骧 《动物学研究》1992,13(2):133-137
本文报道了鞘翅目(Coleoptera)叶甲科(Chrysomelidae)萤叶甲亚科(Galerucinae)柱萤叶甲属Gallerucida的三新种:基红柱萤叶甲G.basalis sp.nov.褐缘柱萤叶甲G.limbatella sp.nov.、小柱萤叶甲G.parva sp.nov.及一新纪录种:黑缘柱萤叶甲G.limbata(Baly,1878)。  相似文献   

10.
本研究记述了来自中国广州海珠湿地的萤叶甲亚科斯萤叶甲属的1新种,并提供了斯萤叶甲属12个中国种类的检索表、新种及其近似种的整体图和雄性外生殖器图.  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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