新疆蚜蝇姬蜂属三新种记述：膜翅目：姬蜂科：蚜蝇姬蜂亚科

新疆蚜蝇姬蜂属三新种记述（膜翅目：姬蜂科：蚜蝇姬蜂亚科）马祁,王登元,王锁牢新疆农科院植物保护研究所新疆乌鲁木齐市８３００００新疆八一农学院植物保护系新疆乌鲁木齐市８３００５２关键词膜翅目,姬蜂科,蚜蝇姬蜂属,新种,中国本文记述了蚜蝇姬蜂属ＤＩ’ｐｌ...     

中国亮姬蜂属记述(膜翅目:姬蜂科, 犁姬蜂亚科)

亮姬蜂属Phalgea系Cameron(1905)根据模式种lutea所建立,系姬蜂豆科、犁姬蜂族的一个小属。至目前为止,全世界只报道两种,其中Phalgea lutea Cameron分布在印度尼西亚和马来西亚,另外一种只报道分布在菲律宾,但无详细记载,因而此属在我国为首次发现。     

脊唇姬蜂属一新种：膜翅目：姬蜂科

本文记述姬蜂科犁姬蜂亚科脊唇姬蜂属一新种,正模、副模,采自海南省。     

角姬蜂属一新种(膜翅目：姬蜂科)

角姬蜂属CosmoconusFoerster,1868隶属柄卵姬蜂亚科Tryphoninae[1]、柄卵姬蜂族Tryphonini。迄今为止,全世界已知23种,其中东洋区1种,古北区13种,新北区9种。我国已知3种[2,3]：中国角姬蜂C．chinensisKasparyan,1973分布于西藏;中角姬蜂C．meridionatorAubert,1963分布于内蒙古及欧洲;西藏角姬蜂C．tibeticusKasparyan,1971分布于西藏和甘肃。属征：前翅第2脉在中央上方强度锯齿形曲折;额中央有一个角状突或乳状突。本文报道来自沈阳的本属一新种。模式标本保存在林业部森林病虫害防治总站。沈阳角姬问Cosm。sshenyangensi…     

隆侧姬蜂属一新种（膜翅目：姬蜂科）

隆侧姬蜂属一新种（膜翅目：姬蜂科）盛茂领，徐公天林业部森林病虫害防治总站，辽宁省沈阳市１１００３４沈阳市绿化管理处，辽宁省沈阳市１１００１５关键词膜翅目，姬蜂科，隆侧姬蜂属，新种，中国隆侧姬蜂属ＬａｔｉｂｕｌｕｓＧｉｓｔｅｌ是姬蜂科Ｉｃｈｎｅｕｍｏｎ...     

寄生落叶松叶蜂的稀姬蜂属一新种：膜翅目：姬蜂科,叶蜂科

本文记述了采自吉林省大兴沟姬蜂和,稀姬蜂属一新种,即无点稀姬蜂Ｈｉｍｅｒｔａ ｉｍｐｕｎｃｔａ ｓｐ．ｎｏｖ．,新种与白额稀姬蜂Ｈ．ａｌｂｉｆｒｏｎｓ １９３０相似,可通过下列特征区别：新种的并胸腹节和腹部背板无皱纹,雌性的脸,额黑色,腹部背板全部黑色,足的基节红色。白额稀姬蜂的并胸腹节和腹部基部的背板具皱纹,脸白色,腹部中部的背板红色,足的基节至少部分黑色。     

中国特姬蜂属种类记述(膜翅目,姬蜂科)

报道我国的特姬蜂属Teleutaea Forster,1869种类,含2新种:赤特姬蜂T.rufa sp.nov.、侧特姬蜂T.pleuralis sp.nov.,4中国新纪录种:角特姬蜂T.corniculata Momoi,1978、小特姬蜂T.diminuta Momoi,1978、东方特姬蜂 T.orientalis Kuslitzky,1973和乌苏里特姬蜂T.ussuriensis(Golovisnin,1928).编制了中国已知种检索表.     

凹足姬蜂属一新种(膜翅目：姬蜂科)

凹足姬蜂属一新种（膜翅目：姬蜂科）盛茂领,苏宏钧（林业部森林病虫害防治总站沈阳１１００３１）凹足姬蜂属ＴｒｅｍａｔｏｐｙｇｕｓＨｏｌｍｇｆｅｎ隶属齿胫姬蜂亚科、针尾姬蜂族。迄今为止,全世界已报道１８种［１～５］：新北区１种,古北区１６种,东洋区１种。...     

小皱背姬蜂属一新种(膜翅目：姬蜂科：长尾姬蜂亚科，皱背姬蜂族)

关于小皱背姬蜂属ＲｈｙｓｅｌａＲｏｈｗｅｒ的种类第一作者与王淑芳教授曾报道过,其中共有５种：丽小皱背姬蜂ＲｈｙｓｅｌａｓｐｅｃｉｏｓａＷａｎｇ＆Ｈｕ、拟小皱背姬蜂Ｒｈｙｓｅｌａａｐｐｒｏｘ－ｉｍａｔｏｒＦａｂｒｉｃｉｕｓ、吉林小皱背姬蜂Ｒｈｙｓｅｌａ...     

中国汤姬蜂属一新种记述(膜翅目,姬蜂科)

记述我国汤姬蜂属Townesia Ozols1新种,陈氏汤姬蜂Townesia cheni sp.nov.,提供了新种的成虫形态描述、特征图和分布记录,并编制了汤姬蜂属已知种检索表。模式标本保存在浙江大学昆虫科学研究所寄生蜂标本室(ZJU)。     

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.