云南“本人”的红细胞血型分布及其与契丹人血缘关系的探讨

调查了云南省施甸县木老元乡哈寨村１０４名“本人”的４个细胞血型系统分布。结果表明,“本人”的ＡＢＯ血型系统分布特点是,基因频率ｐ（０．３０６９）〉基因频率ｑ（０．１７３９）;在ＭＮＳｓ血型系统中,基因频率ｍ（０．６５３８）〉基因频率ｎ（０．３４６２）;在Ｐ血型系统中,基因频率Ｐ１（０．１７９８）较低。这些均与我国南方少数民族的分布特点基本相符。与我国大部分地区一样。Ｒｈ因型系统的单倍型频率中最高的     

24种红细胞血型抗原在黑龙江省赫哲族人群中的分布

对３代均为赫哲族的黑龙江省同江县街津口乡和八叉乡的９４人进行了１０个红细胞血型系统（ＡＢＯ、Ｒｈ、ＭＮＳｓ、Ｄｕｆｆｙ、Ｋｉｄｄ、Ｌｕｔｈｅｒａｎ、Ｄｉｅｇｏ、Ｐ、Ｋｅｌｌ、Ｌｅｗｉｓ）共２３种抗原分布的调查,结果显示,基因频率ｑ（０．２２２３）〉ｐ（０．１６９２）,ｍ（０．６０１１）〉ｎ（０．３９８９）,为我国北方人群特点。其它基因频率为,ｒ＝０．６０８５;Ｓ＝０．０６９１,ｓ＝０．９３０９,Ｍ     

安徽省宁国县畲族红细胞血型分布

调查１６０名安徽省宁国县畲族村民的ＡＢＯ、Ｒｈ、Ｐ、ＭＮ系统红细胞血型,结果显示ＡＢＯ血型表型频率分布为Ｏ（０．４６８７）〉Ｂ（０．２３７５）〉Ａ（０．２２５０）〉ＡＢ（０．０６８８）,基因频率ｐ＝０．１５００,ｑ＝０．１５７５,ｒ＝０．６９２５;Ｒｈ血型表型频率分布为ＣＣｄｅｅ（０．５３８５）〉ＣＣＤＥ（０．１６６７）〉ＣｃＤＥ（０．１４７４）〉ＣｃＤｅｅ（０．０９６１）〉ｃｃＤＥ（０．０３２１     

云南阿昌族的红细胞血型分布

调查了１０２名云南阿昌族的ＡＢＯ,ＮＮＳｓ,Ｒｈ和Ｐ系统的红细胞血型,结果表明,阿昌族的基因频率ｐ（０．３８７４）是迄今国内调查过人群中的最高值,Ｅ（０．２４５９）和ＣＤｅ（０．６９３６）基因或染色体频率较高,而Ｓ（０．０６８６）和Ｐ１（０．１０８９）频率较低;Ｍｓ（０．５９５０）连锁率高于Ｎｓ（０．３３５３）;未发现ＳＳ和Ｒｈ（－Ｄ）阴性表现型。     

刺槐宽叶和四倍体无性系的组织培养

１植物名称刺槐（Ｒｏｂｉｎｉａｐｓｅｕｄｏａｃａｃｉａ）优良无性系：Ｔｅｔｒａｐｌｏｉｄｌｏｃｕｓｔ、Ｇｌｇａｓｔｙｐｅｌｏｃｕｓｔ。２材料类别带腋芽的茎段。３培养条件（１）启动培养基：ＭＳ＋６－ＢＡ０．２５ｍｇ·Ｌ－１（单位下同）＋ＮＡＡ０．０５。（２）分化培养基和继代培养基：ＭＳ＋６－ＢＡ０．５＋ＮＡＡ０．１＋ＡｇＮＯ３１０,ＭＳ＋６ＢＡ０．５＋ＮＡＡ０．１。上述培养基均添加３％蔗糖、０．６％琼脂。（３）生根培养基：１／２ＭＳ＋ＩＢＡ０．２＋ＮＡＡ０．２,添加２％蔗糖０．６％琼脂。培养基ｐＨ…     

GENUS ANTROPHYUM KAULF.FROM CHINA AND NEIGHBORING REGIONS

ＧＥＮＵＳＡＮＴＲＯＰＨＹＵＭＫＡＵＬＦ．ＦＲＯＭＣＨＩＮＡＡＮＤＮＥＩＧＨＢＯＲＩＮＧＲＥＧＩＯＮＳＸ．Ｃ．ＺＨＡＮＧ（Ｔｈｅｈｅｒｂａｒｉｕｍ（ＰＥ）,ＩｎｓｔｉｔｕｔｅｏｆＢｏｔａｎｙ,ＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＳｃｉｅｎｃｅｓ,Ｂｅｉ...     

内蒙地区九个民族的ABO血型分布

本文报告了９个民族ＡＢＯ血型分布,特征有三种：汉族和回族为Ｂ＞Ｏ＞Ａ;达斡尔族为Ｂ＞Ａ＞Ｏ;其余民族（蒙、鄂温克、朝鲜、满族、俄罗斯、鄂伦春族）为Ｏ＞Ｂ＞Ａ,基因频率ｒ（Ｏ）：鄂温克（０．７５４９）较高,达斡尔（０．５２３４）和回族（０．５１７１）较低。Ｐ（Ａ）：鄂温克（０．１１３８）偏低,朝鲜族（０．２２７７）和达斡尔族（０．２２５３）偏高。ｑ（Ｂ）：回族（０．２８１８）略高,鄂温（０．１３１３     

酸枣的组织培养和植株再生

１植物名称酸枣（Ｚｉｚｙｐｈｕｓ　ｊｕｊｕｂａｖａｒ．Ｓｐｉｎｏｓａ）。２材料类别沂河岸堤自然生长的野生植株上的嫩芽。３培养条件诱导愈伤组织培养基：（１）ＭＳ＋６－ＢＡ２ｍｇ·Ｌ’（单位下同）＋ＮＡＡ０．１;（２）ＭＳ＋６－ＢＡ２＋ＮＡＡ０．２;（３）ＭＳ＋６．ＢＡ２＋ＮＡＡ０．４;（４）ＭＳ＋６．ＢＡ２＋ＮＡＡ１;（５）ＭＳ＋６．ＢＡ２＋ＮＡＡ０．０１;（６）ＭＳ＋６．ＢＡ２＋ＮＡＡ０．０５;（７）ＭＳ＋６－ＢＡＩ＋ＮＡＡ０．５。芽分化培养基：（８）ＭＳ＋６－ＢＡＩ;（９）ＭＳ＋６－ＢＡ２;（…     

云南省峨山县彝族人群红细胞ABO血型分布调查

本文报告了云南省峨山县彝族红细胞ＡＢＯ血型基因频率分布状况,有以下特征：表型Ｏ＞Ａ＞Ｂ＞ＡＢ;基因频率Ｙ＝０．５６７９、Ｐ＝０．２３０９、ｑ＝０．２０１２;ＤＰ值为０．７１８７,文中对红细胞ＡＢＯ血型在不同人群中的分布进行了比较分析。１材料和方法样品...     

宫粉郁金的组织培养和快速繁殖

１植物名称宫粉郁金（Ｃｕｒｃｕｍａ　ｋｗａｎｇｓｉｅｎｓｉｓ）。２材料类别　块茎萌动芽。３培养条件　萌动芽生长培养基：（１）ＭＳ＋６－ＢＡ１ｍｇ·Ｌ－１（单位下同）＋ＮＡＡ０．２。不定芽增殖与愈伤组织诱导培养基：（２）ＭＳ＋６－ＢＡ１０＋ＫＴ５;（３）ＭＳ＋６．ＢＡ１０;（４）ＭＳ＋６－ＢＡ５＋ＫＴ２．５;（５）ＭＳ＋６－ＢＡ５;（６）ＭＳ＋６－ＢＡ２＋ＫＴ１。生根培养基：（７）ＭＳ＋ＮＡＡ０．５;（８）ＭＳ＋６－ＢＡ０．５＋ＮＡＡ０．５;（９）ＭＳ。以上培养基均加０．７％琼脂,３％蔗糖,ｐＨ５…     

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.