中国方颜叶蜂属(膜翅目,叶蜂科)种团二新种

记述方颜叶蜂属Pachyprotasis pallidistigma种团2新种:周氏方颜叶蜂Pachyprotasis zhoui Wei et Zhong,sp. nov.和稻城方颜叶蜂Pachyprotasis daochengensis Wei et Zhong, sp. nov..新种模式标本保存在中南林业科技大学昆虫模式标本室.     

中国方颜叶蜂属(膜翅目,叶蜂科)opacifrons种团和sellata种团二新种

记述河南方颜叶蜂属2新种:骨刃方颜叶蜂Pachyprotasis scleroserrula Wei et Zhong,sp.nov.和内乡方颜叶蜂Pachyprotasis neixiangensis Wei et Zhong,sp.nov..新种模式标本保存在中南林业科技大学昆虫模式标本室.     

中国方颜叶蜂属(膜翅目,叶蜂科)种团二新种

记述中国方颜叶蜂属erratica种团二新种:短刃方颜叶蜂Pachyprotasis breviserrula Wei et Zhong,sp.nov.和弱齿方颜叶蜂Pachyprotasis obxurodentellsa Wci et Zhong,sp.nov..新种模式标本保存在中南林业科技大学昆虫模式标本室.     

秦岭方颜叶蜂属(膜翅目,叶蜂科)两新种

记述方颜叶蜂属Pachyprotasis新种,斑背板方颜叶蜂Pachyprotasis maculotergitis sp.nov.,本种腹部第3～5节背板大部橘褐色,第3～6节背板中部具白斑,以此得名;陕西方颜叶蜂Pachyprotasis shanxiensis sp.nov.,本种以正模标本采集地命名.新种模式标本保存在中南林业科技大学昆虫模式标本室.     

中国真片叶蜂属(膜翅目,叶蜂科)四新种

记述采自中国河南的真片叶蜂属4新种:短室真片叶蜂Eutomostethus brevicellus Wei et Niu,sp.nov.,狭突真片叶蜂Eutomostethus lineituberculus Wei et Niu,sp.nov.,白腹真片叶蜂Eutomostethus albiventralinus Wei et Niu,sp.nov.和假亮真片叶蜂Eutomostethus pseudometallicus Wei et Niu,sp.nov..新种模式标本保存于湖南长沙中南林业科技大学昆虫模式标本室.     

中国叶蜂属(膜翅目,叶蜂科)三新种

记述采自中国河南、陕西、浙江的叶蜂科叶蜂亚科叶蜂属3新种:吕氏横斑叶蜂Tenthredo lunani Wei et Niu,sp.nov.,三斑槌腹叶蜂Tenthredo dolichomisca Wei et Niu,sp.nov.,黑腰白端叶蜂Tenthredo pararubiapicilina Wei et Niu,sp.nov.。新种模式标本保存于湖南长沙中南林业科技大学昆虫模式标本室。     

中国钩瓣叶蜂属三新种(膜翅目,叶蜂科)

记述采自中国甘肃的钩瓣叶蜂属3新种,肿跗钩瓣叶蜂Macrophya incrassitarsalia Wei et Wu,sp.nov.,黑体钩瓣叶蜂Macrophya melanosomata Wei et Xin,sp.nov.和白转钩瓣叶蜂Macrophya leucotrochanterata Wei et Li,sp.nov..新种模式标本保存于中南林业科技大学昆虫模式标本室.     

中国钩瓣叶蜂属Macrophya sanguinolenta种团两新种(膜翅目,叶蜂科)

记述中国钩瓣叶蜂属Macrophya DahIbom红足种团Macrophya sanguinoknta group 2新种,花跗钩瓣叶蜂Macrophya coloritarsalina Wei et Li,sp.nov.和长柄钩瓣叶蜂Macrophya longipetiolata Wei et Zhong,sp.nov..前者属于红足种团的中环白亚种团M.depressina subgroup,后者属于红足种团的红股红胫亚种团M.sanguinolenta subgroup.新种模式标本保存于中南林业科技大学昆虫模式标本室.     

中国蕨叶蜂亚科三新种(膜翅目,叶蜂科)

记述中国蕨叶蜂亚科3新种:美斑长片叶蜂Neothrinax formosula Wei et Xiao,sp.nov,.糙眶侧齿叶蜂Neostromboceros punctiorbita Wei et Xiao,sp.nov和.周氏侧齿叶蜂Neostromboceros zhousyi Wei et Liu,sp.nov。.     

中国刻胞叶蜂属Eriocampa Hartig分类研究（膜翅目：叶蜂科：叶蜂亚科）

厘订中国刻胸叶蜂属Eriocampa Hatrig。记述了6个种,包括6新种：黑足刻胞叶蜂E.melanopoda Nie et Wei,sp.nov.;大窝刻胞叶蜂E.foveata Nie et Wei,sp.nov.;环腹刻胸叶蜂E.annulata Nie et Wei,sp.nov.;小齿刻胸叶蜂E.dentella Nie et Wei,sp.nov.;红环刻胸叶蜂E,.rufomaculata Nie et Wei,sp.nov.。详细描述了5新种形态,并给出了重要形态特征图、分布和分种检索素。模式标本分别保存于中南林学院昆虫标本室（CSFU）和天津自然博物馆（TNM）。     

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.