大山口低等四足类动物群中的两栖类：甘肃玉门晚二叠世脊椎动？…

首次记述了大山口低等四足类动物群中的两栖类,其中走廓泰齿螈（Ｉｎｇｅｎｔｉｄｅｎｓｃｏｒｒｉｄｏｒｉｃｕｓｇｅｎ．ｅｔｓｐ．ｎｏｖ）和祁连兄弟迟滞螈（Ｐｈｒａｔｏｃｈｒｏｎｉｓｑｉｌｉａｎｅｎｓｉｓ ｇｅｎ．ｅｔ．ｓｐ．ｎｏｖ）为石炭蜥目迟滞鳄科（Ａｎｔｈｒａｃｏｓａｕｒｉａ,Ｃｈｒｏｎｉｏｓｕｃｈｉｄａｅ）的新成员,前者个体较大,具为数众多的犬齿状齿和齿骨表面的齿骨沟,冠状骨无齿,下颌表面纹饰蜂     

中国东北晚侏罗世虻类化石(昆虫纲:双翅目)

本文论述了辽宁西部上侏罗统虻类６个科的化石,包括１新科,１０个新属和１５个新种。其中Ｐａｌａｅｐａｎｇｏｎｉｕｓ ｅｕｐｔｅｒｕｓ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．,Ｅｌｐａｎｇｏｎｉｕｓ ｐｌｅｔｕｓ ｇｅｎ,ｅｔ ｓｐ．ｎｏｖ．和Ａｌｌｏｍｙｉａ ｒｕｄｅｒａｌｉｓ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．均属于虻科（Ｔａｂａｎｉｄａｅ）;Ｏｒｓｏｂｒａｃｈｙｃｅｒｏｎ ｃｈｉｎｅｎｓｉｓ ｇｅｎ．ｅｔ ｓｐ     

滇东北早寒武世梅树村阶单板类及其新属种研究

本文描述了云南东部早寒武世早期梅树村阶软体动物单板类化石,计有５新属７新种和１个未定种,它们是Ｓｔｒｉａｔｏｃｏｎｕｓ ｙｕｌｕｅｎｓｉｓ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．,Ｓｔｒｉａｔｏｃｏｎｕｓ ｓｐ．,Ａｅｇｉｔｅｌｌｕｓ ｃｏｎｃｅｎｔｔｒｉｃｕｓ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．,Ｔｕｂａｔｏｃｏｎｕｓ ｙｕｌｕｅｎｓｉｓ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．,Ｐａｐｉｌｌｏｃｏｎｕｓ ｅｘｐｌａｎａｔ     

中国平背叶蜂亚科二新属（膜翅目：叶蜂科）

本文记述中国平背叶蜂亚科二新属新种：扁角隙臀叶蜂Ｂｌｅｎｎａｌｌａｎｔｕｓ ｃｏｍｐｒｅｓｓｉｃｏｒｎｉｓ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．,红胸宽背叶蜂Ａｌｌａｎｅｍｐｒｉａ ｒｕｆｉｔｈｏｒａｃｉｃａ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．。隙臀叶蜂属Ｂｌｅｎｎａｌｌａｎｔｕｓ ｇｅｎ．ｎｏｖ．形态十分特殊：唇基三齿型;颚眼距长于单眼直径２倍,上颚对称双齿型;后颊脊全缘式;触角侧扁,１０节,基部２节宽显著大     

竹节石化石在中国的首次发现及其生物学特征（竹节虫目：神Xiu科,新科）

本文建立竹节虫目昆虫化石１新种,即Ｈａｇｉｐｈａｓｍａｔｉｄａｅ,包括３新属,３新种和一个未命名种：Ｈａｇｉｐｈａｓｍａ ｐａｒａｄｏｘａ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．,Ａｅｔｈｅｐｈａｓｍａ ｍｅｇｉｓｔａ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．和Ｏｒｅｐｈａｓｍａ ｅｕｍｏｒｐｈａｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．并给出新科内属的检索表。对消化道痕迹和保存完好的亚生殖板进行了分析,并与现代类群作了比较,竹节虫     

中国西南地区叶蜂新属新：膜翅目：叶蜂科

本文记述中国西南地区叶蜂２新属１０新种：短跗富槛叶蜂Ｔｏｇａｓｈｉａｂｒｅｖｉｔａｒｓｕｓｇｅｎ．ｅｔ．ｎｏｖ．,新属新种,模类秋叶蜂Ａｐｅｔｈｙｍｏｒｈａｔｙｐｉｃａｇｅｎ．ｅｔｓｐ．ｎｏｖ．,新属新种,西藏弓脉叶蜂Ｈｅｍａｔｈｏｌｐｈｏｒｕｓｔｉｂｅｔａｎｕｓｓｐ．ｎｏｖ．,红跗长距叶蜂Ｍｉｍａｔｈｌｏｐｈｏｒｕｓｆｕｌｖｉｔｒｓｕｓｓｐ．ｎｏｖ．,平盾长距叶蜂Ｍｉｍａｔｈｌｏｐｈｏｒｕｓｐｌ     

云南早寒武世澄江动物群的稀有节肢动物

记述澄江动物群的３个新的节肢动物：Ｄｏｎｇｓｈａｎｉａ ｆｏｌｉｉｆｏｒｍｓ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．,Ｐｉｓｉｎｎｏｃａｒｉｓ ｓｕｂｃｏｎｉｇｅｒａ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．和Ｐｓｅｕｄｏｉｕｌｉａ ｃａｍｂｒｉｅｎｓｉｓ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．。标本采自云南澄江帽天山和小滥田剖面下寒武统筇竹寺组Ｅｏｒｅｄｌｉｃｈｉａ带下部,３个新属种分别有１枚或２枚标本为代表。新属种拓宽了我们     

朝鲜潮虫属一新种(甲壳纲:等足目)

记述采自江苏省连云港市花果山的等足目气肢虫科朝鲜潮虫属一新种,即花果山朝鲜潮虫Ｋｏｒｅｏｎｉｓｃｕｓ ｈｕａｇｕｏｓｈａｎｅｎｓｉｓ Ｔａｎｇ ｅｔ Ｇｕｉ,ｓｐ．ｎｏｖ．,并讨论其与相似种莱氏朝鲜潮虫Ｋｏｒｅｏｎｉｓｃｕｓ ｒａｃｏｖｉｔｚａｉ（Ａｒｃａｎｇｅｌｉ,１９２７）的区别。     

广西十万大山(虫脩)目三新种((虫脩)目:异(虫脩)科,(虫脩)科)

报道采自广西十万大山Ｘｉｕ目３新种,即龙州蔷Ｘｉｕ Ａｓｃｅｌｅｓ ｌｏｎｇｚｈｏｕｅｎｓｉｓ Ｃｈｅｎ ｅｔ Ｈｅ,ｓｐ．ｎｏｖ．,斑角阿异Ｘｉｕ Ａｒｕａｎｏｉｄｅａ ｍａｃｕｌａｔａ Ｃｈｅｎ ｅｔ Ｈｅ,ｓｐ．ｎｏｖ。,和刺角短肛Ｘｉｕ Ｂａｃｕｌｕｍ ｓｐｉｎｉｃｏｒｎｕｍ Ｃｈｅｎ ｅｔ Ｈｅ,ｓｐ．ｎｏｖ．,与近似种作了比较,并附主要特征图。     

梵净山常足螯蜂属三新种（膜翅目：螯蜂科：常足螯蜂亚科）

本文记述常足螯蜂属３新种：白脸常足螯蜂Ａｐｈｅｌｏｐｕｓ ａｌｂｉｆａｃｉａｌｉｓ Ｘｕ ｅｔ Ｈｅ,ＳＰ．ｎｏｖ。褐唇常足螯蜂Ａｐｈｅｌｏｐｕｓ ｓｐａｄｉｃｅｕｓ Ｘｕ ｅｔ Ｈｅ,ｓｐ．ｎｏｖ。和扁腹常足螯蜂Ａｐｈｅｌｏｐｕｓ ｃｏｍｐｒｅｓｓｕｓ Ｘｕ ｅｔ Ｙａｏ,ｓｐ．ｎｏｖ。     

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.