叶刺瘿螨亚科2种新记述（蜱螨亚纲：瘿螨科）

2新种是槐新四瘿螨Neotetra sophorae sp.nov.分布于辽宁沈阳市,蔷薇上三脊瘿螨Calepitrimerus rosarum sp.nov.分布于湖南冷水江市。     

中国叶刺瘿螨亚科四新种记述(蜱螨亚纲:瘿螨科)

记述叶刺瘿螨亚科4新种：粗毛榕上三脊瘿螨Calepitrimerus fici Wei,sp．nov．,大叶紫珠上瘿螨Epitrimerus callicarpae Wei et Li,sp．nov．,木姜子五脊瘿螨Pentamerus litseae Wei et Chen,sp．nov．和三又苦顶背瘿螨Tegonotus evodiae Wei,sp．nov．。模式标本保存在广西大学农学院。     

中国叶刺瘿螨亚科四新种记述

记述叶刺瘿螨亚科4新种:野葛藤裂柄瘿螨 Dichopelmus puerariae,sp.nov.,猪肚勒上三脊瘿螨 Calepitrimerus jasmini,sp.nov.,环江顶冠瘿螨 Tegolophus huanjiangensis,sp.nov.,类芦新四瘿螨 Neotetra neyraudiae,sp.nov..模式标本保存在广西大学农学院.     

叶刺瘿螨亚科2新种记述(蜱螨亚纲:瘿螨科)

2新种是槐新四瘿螨Neotetra sophorae sp. nov. 分布于辽宁沈阳市;蔷薇上三脊瘿Calepitrimerus rosarum sp. nov.分布于湖南冷水江市。     

中国叶刺瘿螨亚科四新种记述(蜱螨亚纲:瘿螨科)

记述叶刺瘿螨亚科4新种：野葛藤裂柄瘿螨Dichopelmus puerariae，sp．nov．，猪肚勒上三脊瘿螨Calepitrimerus jasmini，sp．nov．，环江项冠瘿螨Tegolophus huanjiangensis，sp．nov．，类芦新四瘿螨Neotetra neyraudiae，sp．nov．。模式标本保存在广西大学农学院。     

中国叶刺瘿螨亚科一新属三新种一新纪录种(蜱螨亚纲,瘿螨科)

描述叶刺瘿螨亚科Phyllocoptinae新属为：新上三脊瘿螨属Neocalepitrimerus gen.nov.,3新种是金樱新上三脊瘿螨Neocalepitrimerus rosa sp.nov.,寄主植物是金樱子Rosalaevigata（Michx）;山绿豆四瘿螨Tetra desmodium sp.nov.,寄主植物是异果山绿豆Desmodium heterocarpum（L.）;叶下珠顶冠瘿螨Tegolophus phyllathus sp.nov.,寄主植物是叶下珠Phyllathus sp.;1新纪录种是土密树四瘿螨Tetra bridelineDas＆Chakrabati。     

中国叶刺瘿螨亚科四新种记述(蜱螨亚纲：瘿螨科)

记述了叶刺瘿螨亚科(Phyllocoptinae)四新种：茅莓上三脊瘿螨Calepitrimerus rubi sp.nov.,槐顶冠瘿螨Tegolophus sophorae sp.nov.,丁香四刺瘿螨Tetraspinus syringae sp.nov.和柳副四瘿螨Paratetra sallicis sp.nov.。     

中国广西大瑶山瘿螨新属和新种（蜱螨亚纲：瘿螨总科）

记述采自广西的瘿螨总科10属10新种。新属二环顶背瘿螨属Tegosecanus gen. nov. 的主要属鉴别特征为：螨体为纺锤形,胛毛位于盾后缘之前,螨体背环光滑,腹环具微瘤,背环具中纵脊,终止于2侧脊之前,第2背环宽,覆盖于其后的二背环之上,第3–4背环具侧突。10新种分别是：油杉三毛瘿螨Trisetacus fortunei sp. nov.;桂林雕瘿螨Glyptacus kweilinensus sp. nov.;腺叶桂樱新拟尖叶瘿螨Neoacaphyllisa phaeosticta sp. nov.;山黄麻尖空瘿螨Oxycenus tomentosae sp. nov.;拟赤杨小叶剌瘿螨Phyllocoptacus fortuneir sp. nov.;金秀二环顶背瘿螨Tegosecans jinxiuensis sp. nov.;古柯上瘿螨Epitrimerus sinensis sp. nov.;润楠叶剌瘿螨Phyllocoptes glaucifoliae sp. nov.;山麻风羽爪瘿螨Diptilomiopus pomiferae sp. nov.;卫矛维氏瘿螨Vimola laxifloris sp. nov. 上述所有瘿螨新种均生活在寄主叶片背面,无明显为害状。     

广西十万大山瘿螨一新属五新种(蜱螨亚纲,瘿螨科)

新属为拟叶剌瘿螨属Paraphyllocoptes gen.nov.,模式种为十万山拟叶刺瘿螨Paraphyllocoptes shiwanshanensis sp.nov..5个新种是十万山拟叶剌瘿螨Paraphyllocoptes shiwanshanensis sp.nov.,假蒌上瘿螨Epitrimerus piper sp.nov.,润楠叶剌瘿螨Phyllocoptes machilus sp.nov.,广西斜背瘤瘿螨Vasates guangxiensis sp.nov.和棋子豆分位瘿螨Disella cylindrokeluphae sp.nov..     

中国瘿螨科五新种记述(蜱螨亚纲:瘿螨总科)

5新种是丁香顶冠瘿螨Tegolophus syringae sp.nov.,寄主为丁香;黍顶冠瘿螨Tegolophus panici sp.nov.,寄主为黍;胡枝子顶冠瘿螨Tegolophus lessedezae sp.nov.,寄主为胡枝子;毛竹畸瘿螨Abacarus phyllostachyis sp.nov.,寄主为毛竹;渝畸瘿螨Abacarus yunensis sp.nov.,寄主为竹。     

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.     

杆状病毒出芽病毒粒子膜融合蛋白的研究进展

杆状病毒是一类感染节肢动物的病原微生物,其基因组为双链环状DNA,大小为80～180kb.     

Inception of the Modern Public Health System in China and Perspectives for Effective Control of Emerging Infectious Diseases: In Commemoration of the 140th Anniversary of the Birth of the Plague Fighter Dr. Wu Lien-Teh

In this article, we systematically review Dr. Wu Lien-Teh's academic achievements and outstanding contributions in the prevention and control of the plague epidemic in northeast China and introduce the development of the earliest public health epidemic prevention system in China in order to commemorate the 140th anniversary of Dr. Wu Lien-Teh's birth. We hope that this article will provide insights into the effective prevention and control of emerging infectious diseases as well as the current worldwide pandemic of COVID-19, facilitating the improvement and development of public health systems in China and around the globe.