天牛亚科中国四新纪录种(鞘翅目,天牛科)

记述了天牛亚科虎天牛族4新纪录种,刺虎天牛属Demonax Thomson的八点刺虎天牛D.contrarius Holzschuh;艳虎天牛属Rhaphuma Pascoe的独艳虎天牛R.unigena Holzschuh;绿虎天牛属Chlorophorus Chevrolat的胖绿虎天牛C.proannulatus Gressitt & Rondon;瘦棍腿天牛属Stenodryas Bates的四纹瘦棍腿天牛S.nigromaculatus(Gardner).研究标本保存在西南大学昆虫标本馆.     

天牛亚科一新纪录属和二新纪录种(鞘翅目,天牛科)

记述了天牛科Cerambycidae天牛亚科Cerambycinae 的中国1新纪录属锤腿天牛属Nyphasia Pascoe,1867,以及中国2新纪录种:老挝锤腿天牛N.pascoei Lacordaire,1869和长纹绿虎天牛Chlorophorus rufimembris Gressitt& Rondon,1970,研究标本保存在西南大学昆虫标本馆.     

虎天牛族中国六新纪录种(鞘翅目,天牛科,天牛亚科)

共记述了绿虎天牛属Chlorophorus Chevrolat中国1新纪录种,横纹绿虎天牛Chlorophorus copiosus Holzschuh;艳虎天牛属Rhaphuma Pascoe中国2新纪录种,回纹艳虎天牛Rhaphuma lanzhui Holzschuh和箭纹艳虎天牛Rhaphuma illicata Holzschuh;刺虎天牛属Demonax T homson中国3新纪录种,断纹刺虎天牛Demonax traudae Holzschuh,蔷薇刺虎天牛Demonax rosae Holzschuh和格氏刺虎天牛Demonax gertrudae Holzschuh。研究标本保存在西南大学昆虫标本馆。     

SIX NEW RECORD SPECIES OF CLYTINI FROM CHINA ( COLEOPTER,CERAMBYCIDAE, CERAMBYCINAE)

共记述了绿虎天牛属Chlorophorus Chevrolat中国1新纪录种,横纹绿虎天牛Chlorophorus copiosus Holzschuh;艳虎天牛属Rhaphuma Pascoe中国2新纪录种,回纹艳虎天生Rhaphuma lanzhui Holzschuh和箭纹艳虎天牛Rhaphuma illicata Holzschuh;刺虎大牛属Demnonax Thomson中国3新纪录种,断纹刺虎天牛Demonax traudae Holzschuh,蔷薇刺虎天牛Demonax rosae Holzschuh和格氏刺虎天牛Demnonax gertrudae Holzschuh.研究标本保存存西南大学昆虫标本馆.     

北京的脊虎天牛属分类研究(鞘翅目:天牛科)

对分布于北京的10种脊虎天牛属甲虫开展了分类研究,恢复了北京脊虎天牛Xylotrechus pekingensis Pic,1939的地位,不再是宽带脊虎天牛Xylotrechus yanoi Gressitt,1934的异名,报道了本种在河北和陕西的新分布记录.提出双带脊虎天牛Xylotrechus bifenestratus Pic,1916是四带脊虎天牛Xylotrechus polyzonus (Fairmaire,1888)的新异名,两者的模式标本均产自北京.本文还报道了3种北京新记录种:显纹脊虎天牛X.ibex (Gebler,1825)、葡脊虎天牛X.pyrrhoderus Bates,1873和黑胸脊虎天牛X.robusticollis (Pic,1936).通过检视标本,很多新的分布信息被加入到相关的种类.最后本文提供了分布于北京的10种脊虎天牛属甲虫的分种检索表.     

中国天牛科二新记录种

记述天牛科Cerambycidae天牛亚科Cerambycinae的2中国新记录种,即绿虎天牛属Chlorophorus的岛绿虎天牛C.minamiiwo Sato et Ohbaysashi和苔绿虎天牛C.muscosus (Bastes)。     

中国锯翅天牛属一新纪录种及黑翅锯翅天牛雄性描记(鞘翅目,天牛科,天牛亚科)(英文)

报道了采自中国云南省的天牛科锯翅天牛属1新纪录种,银毛锯翅天牛Microdebilissa argentifera(Holzschuh,1984),详细描述了新纪录种的形态特征;补充描述了黑翅锯翅天牛 Microdebilissa atripennis(Pu,1992)的雄性特征;提供了分布于中国的锯翅天牛属的昆虫名录。研究标本保存于西南大学昆虫标本馆。     

中国广翅天牛属记述（鞘翅目：天牛科）

本文记述了广翅天牛属Plaxomicrus的主要特征及地理分布,对于1新种进行形态描述,记载了我国1种新纪录,并对我国已知的6种,编制成种检索表,以资区别。它们是:广翅天牛P.ellipticus Thomson,细点广翅天牛P.latus Gahan(中国新纪录),蜀广翅天牛P.szeischuanus Breuning,蓝基广翅天牛P.violaceomaculatus Pic,淡色广翅天牛P.pallidicolor Pic及黑腹广翅天牛P.nigrivenrris sp.nov.     

中国花天牛亚科一新纪录属及一新种记述(鞘翅目,天牛科)

记述了中国花天牛亚科1新纪录属角花天牛属Munamizoa Matsushitaet Tamanuki,1940及1新种长白山角花天牛Munamizoa changbaishanensis sp.nov.,模式标本采自吉林省长白山,保存在北华大学林学院昆虫标本室。     

中国刺虎天牛属二新种(鞘翅目,天牛科,天牛亚科)

记述中国刺虎天牛属2新种,即赤红刺虎天牛Demonax rufus sp.nov.和福贡刺虎天牛Demonax fugongensis sp.nov..模式标本保存在西南农业大学昆虫标本馆.     

Recent advances in the study of Kaposi's sarcoma-associated herpesvirus replication and pathogenesis

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.     

The structure, reproduction and taxonomy of Vidalia and Osmundaria (Rhodophyta, Rhodomelaceae)

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.     

New or rare chromosome counts in Artemisia L. (Asteraceae, Anthemideae) and related genera from Kazakhstan

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.     

肝癌中HBV和HCV基因和抗原的分布及意义

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     

Selection with two alleles and complete dominance

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.