遗传学——理解生命系统——第20届国际遗传学大会在德国柏林召开

第20届国际遗传学大会于2008年7月12－17日在德国柏林国际会议中心召开,中国遗传学会代表团共38人参加了大会。国际遗传学大会是国际遗传学界的宏大盛会,每5年召开1次, 本次会议主题为：“遗传学----理解生命系统”。众多国际学者围绕53个议题回顾了近年来遗传学的发展和进步,特别围绕理解复杂生命系统的结构、功能和进化的遗传基础,展示了令人振奋的科学前沿和进展。     

“全球华人遗传学大会—2012杭州”第一轮通知

"全球华人遗传学大会"将于2012年7月6日至9日在杭州举行。会议旨在进一步加强遗传学界的学术交流与合作,促进遗传学发展,提升我国的国际地位。本次大会由中国遗传学会、浙江大学、美洲华人遗传学会共同主办,以"遗传学为人类造福"为主题。会议涉及遗传学     

第15届国际遗传学大会会讯

最近第15届国际遗传学大会组织委员会主席M.s.swaininathan教授致函中国遗传学会理事长李汝祺教授,通报了第15届国际遗传学大会将于1983年12月在印度新德里召开,并函告了第15届大会的论文宣读和分组讨论内容,现全文译出,供各地遗传学会和会员参阅。     

第19届国际遗传学大会简报

~~第19届国际遗传学大会简报$中国遗传学会     

整合资源 提高学术交流与科学传播质量

1、办好学会大会和举办国际会议推动遗传学发展遗传学发展日新月异,突飞猛进,为适应发展的需求,适当增加举办中国遗传学会大会的次数,这样可以使学术交流与学科发展同步,充分发挥学术交流推动科研进步的作用,提高学会影响力和凝聚力。通过与国际同行交流,积极创造条件推动专业委员会召开国际会议,为学会召开国际会议积累经验。适时由学会牵头举办国际会议,以提高中国遗     

2002年全国医学遗传学学术会议征文通知

为了加强我国人类医学遗传学的学术交流 ,及时追踪当今国际遗传学发展 ,总结遗传学研究成果和经验 ,由中华医学会医学遗传学分会、中国遗传学会人类医学遗传学专业委员会联合主办 2 0 0 2年全国人类医学遗传学学术会议 ;大会主题为“二十一世纪人类医学遗传学”。会议将于 2 0 0 2年 9月在浙江省温州市召开 ,届时将邀请国内外著名遗传学专家就人类医学遗传学相关领域做专题报告 ,并进行交流讨论。本次大会按中华医学会一类学术大会给予国家级继续教育学分。1.征文内容 :人类基因组、群体遗传学、单基因病研究、多基因病研究、肿瘤遗传学、干…     

绿荧光蛋白及其在转基因动物研究中的应用

绿荧光蛋白（ｇｒｅｅｎｆｌｕｏｒｅｓｃｅｎｔｐｒｏｔｅｉｎ,ＧＦＰ）是源于水母（Ｊｅｌｙｆｉｓｈ）、海笔（ＳｅａＰｅｎ,ＳｅａＰａｎｓｙ）等海洋无脊椎动物的一种蛋白质,这种蛋白质在体外经适当波长的光激发便可发出绿光,所发出的绿光用普通荧光显微镜或荧光激活细胞分拣器（ＦＡＣＳ）均可检测到。ＧＦＰ作为动、植物以及微生物基因工程研究上的一种选择标记具有检测灵敏度高,操作简便,对机体毒副作用小且不需要添加任何底物或辅助因子等优点,更重要的是检测ＧＦＰ无损于细胞或胚胎的完整性及活力。本文概括介绍ＧＦＰ的生化、发光光谱及遗传学特征及其在转基因动物研究上的应用。     

一个实用的群体遗传学分析软件包——GENEPOP 3.1版

ＧＥＮＥＰＯＰ是一个非常实用的群体遗传学分析软件包,适用于对大量的群体遗传学数据进行分析。它主要有以下３个方面的用途：１）进行正合检验,如对哈迪－温伯格平衡、种群差异和位点间的连锁不平衡进行检验;２）估算经典的群体遗传学参数,如Ｆｓｔ和其它相关指数及基因频率等;３）可把ＧＥＮＥＰＯＰ的文件转换为常用的群体遗传学分析软件包（如ＢＩＳＹＳ、ＦＳＴＡＴ和ＬＩＮＫＤＯＳ）所要求的输入文件格式。与软件ＢＩＯ     

根瘤菌共生结瘤基因的分子遗传学研究进展

根瘤菌共生结瘤基因的分子遗传学研究进展①樊妙姬陈丽梅马庆生（广西大学生物技术与糖业工程学院,南宁５３０００５）ＴｈｅＡｄｖａｎｃｅｉｎＭｏｌｅｃｕｌａｒＧｅｎｅｔｉｃｏｆＲｈｉｚｏｂｉｕｍＳｙｍｂｏｔｉｃＮｏｄｕｌａｔｉｏｎＧｅｎｅｓＦＡＮＭｉａｏｊ...     

被子植物雄性不育的遗传学研究进展

被子植物雄性不育的遗传学研究进展吕洪飞（浙江师范大学生物系,金华３２１００４）余象煜（杭州大学生物系,杭州３２００２８）ＡＤＶＡＮＣＥＳＩＮＲＥＳＥＡＲＣＨＥＳＯＦＧＥＮＥＴＩＣＳＯＦＭＡＬＥＳＴＥＲＩＬＩＴＹＩＮＡＮＧＩＯＳＰＥＲＭＳＬüＨｏｎｇ...     

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.