中国寄蝇科狭颊寄蝇属研究

综合研究中国狭颊寄蝇属73种的鉴别方法、分布、寄主种类;研究并发现一些种类的变异特点,♀、♂异型等现象;文中附有73种的检索表及特征图,15个新种的描述;订正了5种为新异名。重建了狭颊寄蝇属的分类系统。     

狭颊寄蝇属一新种记述（双翅目：寄蝇科）

本文中国发现的狭颊寄蝇属一新种宽属狭颊寄蝇。     

中国新记录属——颊寄蝇属分类研究（双翅目：寄蝇科）

颊寄蝇属Dexiosoma属于寄蝇亚科、Microphthalmini族,该属种类均栖息于草丛中,寄生于土壤中金龟子科幼虫;其外形特征是侧颜宽,具淡色毛,单眼鬃缺,触角芒羽状,后背中鬃3,足黄,前足基节前内侧大部具倒伏的小毛。已知4种颊寄蝇中,3种分布东洋区,1种分布古北区。本文研究了产自上述两动物地理区的颊寄蝇属标本和文献,首次发现该属在我国分布,记述了采自四川,云南和西藏的1新种,暗角颊寄蝇Dexiosoma nigricornis;简述了分布辽宁和吉林的中国新记录种,灰颊寄蝇D.caninum(Fabricius)的主要特征;编制了本属5种雄性检索表;研究标本均保存在沈阳师范大学昆虫研究所。     

河北小五台山自然保护区寄蝇科昆虫调查

报告我国河北小五台山自然保护区分布的寄蝇科昆虫4亚科17族51属67种,其中发现4个中国新纪录属:娇寄蝇属Hebia Robineau-Desvoidy,弓寄蝇属Arcona Richter,强腹寄蝇属Strongygaster Macquart,旁寄蝇属Parhamaxia Mesnil;7个中国新纪录种:湿蓖寄蝇Billaea irrorata(Meigen)、狭额喙寄蝇Stomina angustifrons Kugler、黄娇寄蝇Hebia flavipes R.-D.、均伪膝芒寄蝇Pseudogonia parisiaca(R.-D.)、阿穆尔弓寄蝇Arcona amuricola Richter、球强腹寄蝇Strongygaster globula(Meigen)、心鬃旁寄蝇Parhamaxia discalis(Mesnil);34个河北新纪录种,13个中国特有种,并初步研究了小五台山寄蝇区系及生态习性。     

辽宁白狼山国家级自然保护区寄蝇资源调查报告

调查我国辽宁西部白狼山国家级自然保护区寄蝇科昆虫资源。采用形态分类、生物多样性和动物地理研究法,分类鉴定寄蝇科4亚科18族49属78种,占中国已知属和种类的17.19%和6.33%,其中选择盆地寄蝇Bessa parallela,暗黑麦寄蝇Medina melania,多鬃麦寄蝇M.multispina,灰腹狭颊寄蝇Carcelia rasa,齿肛裸基寄蝇Sentometopia dentata,松毛虫锥腹寄蝇Smidtia amoena,窄角幽寄蝇Eumea linearicornis,敏阳寄蝇Panzeria laevigata种群数量明显多于其它种类,是白狼山森林和灌丛生态系的优势种群。白狼山寄蝇区系特征以古北界、古北和东洋界共有种类最为丰富,占本地区总种数的96.16%。发现2中国新纪录属,卡寄蝇属Kallisomyia Borisova,1964,泥寄蝇属Pelatachina Meade,1894;6中国新纪录种:斯塔卡寄蝇K.stackelbergi Borisova;斑埃里寄蝇Erycia fasciata Villevenue;触角锥腹寄蝇Smidtia antennalis Shima;灰锥腹寄蝇S.pauciseta Shima;敏阳寄蝇Panzeria laevigata Meigen;胫泥寄蝇P.tibialis(Fallén);22辽宁新纪录种,10中国特有种。检查标本均保存于沈阳师范大学昆虫标本馆。     

中国锥腹寄蝇属研究(双翅目,寄蝇科)

系统地研究了我国寄蝇科中锥腹寄蝇属Smidtia Robinneau-Desvoidy的分类及其种类鉴定,记述了3新种和中国l新纪录种,并编制了我国7种锥腹寄蝇的检索表。新种是：长肛锥腹寄蝇S.longicauda、亮丽锥腹寄蝇S.candida和伊春锥腹寄蝇S.yichunica,中国新纪录种是：日本锥腹寄蝇S.japonica。     

中国菲寄蝇属分类研究(双翅目: 寄蝇科)

经研究发现中国菲寄蝇属现共有9种,其中包括4新种：金额菲寄蝇Phebellia aurifrons sp. nov.,褐粉菲寄蝇Ph. fulvipollinis sp. nov.,宽叶菲寄蝇Ph. latisurstyla sp. nov.和毛基节菲寄蝇Ph. setocoxa sp. nov.。我国新记录3种：叶蜂菲寄蝇Ph. clavellariae (Brauer & Bergenstamm),灰粉菲寄蝇Ph. glauca (Meigen)和拟灰粉菲寄蝇Ph. glaucoides Herting。本文除详细描述新种特征及绘制特征图外,还提供中国菲寄蝇属已知种类的分种检索表。     

中国金绿寄蝇属记述：双翅目：寄蝇科

金绿寄蝇属Chrysocosmius在全世界已记载5种(古北界3种,东洋界2种),本文报道我国7种,其中包括4新种和2中国新纪录。新种为:巨眼鬃金绿寄蝇Chrysocosrmius ocellosetus,单鬃金绿寄蝇Chr.monostus,双齿金绿寄蝇Chr.bidentatus,亚合眼金绿寄蝇Chr.euholopticus。本文还编有种检索表。     

中国蜉寄蝇属分类学研究(双翅目,寄蝇科)(英文)

蜉寄蝇属Phorocera隶属于双翅目Diptera寄蝇科Tachinidae追寄蝇业科Exoristinae追寄蝇族Exoristini,一般寄生于鳞翅口毒蛾科,夜蛾科和尺蛾科的幼虫;主要分布于古北区和新北区.该属区别于追寄蝇族Exoristini 其它属的特征为:眼后鬃列后方具黑毛,复眼具淡黄色长毛,单眼鬃位于前单眼后方,背中鬃3+3,翅内鬃0+3,腹部背板具心鬃.本文系统研究了中国蜉寄蝇属的4个已知种,勺肛蜉寄蝇P.assinilis,锥肛蜉寄蝇P.grandis,直条蜉寄蝇P.normalis和昏暗蜉寄蝇P.obscura;并首次描述了直条蜉寄蝇的雄性和采自我国辽宁本溪的1新种,辽宁蜉寄蝇Phorocera liaoningensis sp.nov.;编制了古北区本属6种雄性检索表.新种区别于近缘种勺肛蜉寄蝇的特征为:第4腹板后缘钝圆,中脉心角至中肘横脉的距离略长于心角至翅后缘的距离,雄性肛尾叶后面观端半部均匀变窄.     

中国鞘寄蝇属的研究（双翅目：寄蝇科）

鞘寄蝇属Thecocarcelia全世界已记载7种,本文报道我国6种,其中2个新种。新种为:毛斑鞘寄蝇Thecocarcelia hirtmacula,多径鬃鞘寄蝇Th. setula。本文还编有种检索表。     

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.