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Search Results: 1 - 10 of 1700 matches for " Nai Wenhui Zan Ruiguang "
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THE DISTRIBUTION OF SCE AMONG QUAIL EMBRYO CELLS AND AMONG CHROMOSOMES
姐妹染色单体互换在鹌鹑胚胎细胞染色体间及染色体上的分布

Nai Wenhui Zan Ruiguang,
佴文惠
,昝瑞光

动物学研究 , 1991,
Abstract: The distribution of SCE among quail embryo cells coincided with Poisson distribution, while among chromosomes, it was nonrandom. There was a positive correlation (P<0.05) between SCE frequency and the chromosomal relative length, but SCE distribution in each chromosome was not completely in accordance with the relative length of each chromosome. The SCE frequency in each centromeric region was very high and accordance with the relative length of each chromosome. The per cell SCE average value was not significantly influenced by the sex of embryo (P>0.05), but that whether the SCE per Z was effected significantly by sex had not been determined.
PRELIMINARY STUDY OF HIGH-RESOLUTION BANDING OF THE RAN A CATESBEIANA
牛蛙(Rana catesbeiana)染色体高分辨带显示的初步探讨

Mai Ming Zan Ruiguang,
麦明

动物学研究 , 1990,
Abstract: In this paper, A method, pre-treatment with 2-Mcrcapto Ethanol and hypolonic treatment with the Ohnuki's solution and flame dry, is employed 1o show chromosome high-resolution bands of Rana catcsbeiana. This procedure can elongate chromosomes, and leads the chromosomes to show highresolution bands which are similar to the high-resolution G-bands of human. The mechanism of chromosome high-resolution banding of Rana caicsbciana was discussed.
Gene admixture in ethnic populations in upper part of Silk Road revealed by mtDNA polymorphism
LiuQi Yang,SiJie Tan,HaiJing Yu,BingRong Zheng,EnFa Qiao,YongLi Dong,RuiGuang Zan,ChunJie Xiao
Science China Life Sciences , 2008, DOI: 10.1007/s11427-008-0056-2
Abstract: To evaluate the gene admixture on the current genetic landscape in Gansu Corridor (GC) in China, the upper part of the ancient Silk Road which connects the Eastern and Central Asia, we examined mitochondrial DNA (mtDNA) polymorphisms of five ethnic populations in this study. Using PCR-RFLP and sequencing, we analyzed mtDNA haplotypes in 242 unrelated samples in three ethnic populations from the GC region and two ethnic populations from the adjacent Xinjiang Uygur Autonomous Region of China. We analyzed the data in comparison with the previously reported data from Eastern, Central and Western Asia and Europe. We found that both European-specific haplogroups and Eastern Asian-specific haplogroups exist in the Gansu Corridor populations, while a modest matrilineal gene flow from Europeans to this region was revealed. The Gansu Corridor populations are genetically located between Eastern Asians and Central Asians, both of who contributed significantly to the maternal lineages of the GC populations. This study made the landscape of the gene flow and admixture along the Silk Road from Europe, through Central Asia, to the upper part of the Silk Road more complete.
The geographic polymorphisms of Y chromosome at YAP locus among 25 ethnic groups in Yunnan, China
Hong Shi,Yongli Dong,Weixiang Li,Jie Yang,Kaiyuan Li,Ruiguang Zan,Chunjie Xiao
Science China Life Sciences , 2003, DOI: 10.1360/03yc9015
Abstract: The genetic polymorphisms of Y chromosome at YAP locus in 25 ethnic groups (33 populations) of China were analyzed in a total of 1294 samples. The average YAP+ frequency of the 33 populations was 9.2%, coinciding with published data of Chinese populations. Primi has the highest YAP+ frequency (72.3%), which is also the highest YAP+ among all the eastern Asian populations studied. The YAP+ occurred in 17 populations studied including Tibetan (36.0%), Naxi (37.5% and 25.5%), Zhuang (21.3%), Jingpo (12.5%), Miao (11.8%), Dai (11.4%, 10.0%, 3.3% and 2.0%), Yi (8.0%), Bai of Yunnan (6.7% and 6.0%), Mongol of Inner Mongolia (4.3%), Tujia of Hunan (2.6%), Yao (2.2%) and Nu (1.8%). The other 15 populations are YAP-including Lahu (2 populations), Hani, Achang, Drung, Lisu, Sui, Bouyei, Va, Bulang, Deang, Man and Hui and Mongol of Yunnan and Bai of Hunan. The YAP+ frequencies varied among the different ethnic groups studied, and even different among the same ethnic group living in different geographic locations. Using the genetic information, combined with the knowledge of ethnology, history and archaeology, the origin and prehistoric migrations of the ethnic groups in China, especially in Yunnan Province were discussed.
KARYOTYPE, C-BANDS AND NORs IN LARUS RIDIBUNDUS
红嘴鸥核型及C带和银带

Xiao Chunjie Zan Ruiguang,
肖春杰
,昝瑞光

动物学研究 , 1990,
Abstract: The diploid chromosome number of L. ridibundus is determined to be 68 or so. Most of the macrochromosomes show a prominent centromeric C-band. The Z chromosome has a small, indistinct C-band, while the W chromosome is almost C-positive. The Ag-NORs are detected on 2 pairs of microchromosomes.
Gene admixture in ethnic populations in upper part of Silk Road revealed by mtDNA polymorphism

YANG LiuQi,TAN SiJie,YU HaiJing,ZHENG BingRong,QIAO EnFa,DONG YongLi,ZAN RuiGuang &,XIAO ChunJie,

中国科学C辑(英文版) , 2008,
Abstract: To evaluate the gene admixture on the current genetic landscape in Gansu Corridor (GC) in China, the upper part of the ancient Silk Road which connects the Eastern and Central Asia, we examined mitochondrial DNA (mtDNA) polymorphisms of five ethnic populations in this study. Using PCR-RFLP and sequencing, we analyzed mtDNA haplotypes in 242 unrelated samples in three ethnic populations from the GC region and two ethnic populations from the adjacent Xinjiang Uygur Autonomous Region of China. We analyzed the data in comparison with the previously reported data from Eastern, Central and Western Asia and Europe. We found that both European-specific haplogroups and Eastern Asian-specific haplogroups exist in the Gansu Corridor populations, while a modest matrilineal gene flow from Europeans to this region was revealed. The Gansu Corridor populations are genetically located between Eastern Asians and Central Asians, both of who contributed significantly to the maternal lineages of the GC populations. This study made the landscape of the gene flow and admixture along the Silk Road from Europe, through Central Asia, to the upper part of the Silk Road more complete.
Cooperative Advertising in a Two-Stage Supply Chain with Network Externalities  [PDF]
Wenhui Li
American Journal of Industrial and Business Management (AJIBM) , 2019, DOI: 10.4236/ajibm.2019.94069
Abstract:
A two-stage game is developed with network externalities where, besides pricing decisions, the retailer and manufacturer can determine their advertising investments and advertising participation rates for each stage. In addition to the full cooperation advertising model, three part cooperation advertising models are established. We develop propositions and insights from the comparison of these models. Our main findings are as follows: 1) the equilibrium solutions critically depend on the effects of network externalities; 2) the optimal choice in a two-stage game is to achieve full cooperation; and 3) a second-best choice for the manufacturer is to share the retailer’s advertising in the first stage. Our research results have guiding significance for supply chain member’s decision-making in local advertising practice.
A STUDY ON THE CHROMOSOMES OF WHITE-CHEEKED GIBBON(Hylobates leucogenys)
白颊长臂猿染色体的研究

Liu Ruiqing,Nai Wenhui,Chen Yuze,Yu Dinghui,
刘瑞清
,佴文惠

动物学研究 , 1996,
Abstract: White-cheeked gibbon(H. leucogenys) is distributed in the south of Yunnan, China.The chromosomes of a female and a male were studied by several banding techniques(G-,C -and Ag-staining), and a techniqe for simultaneous exhibiting chromosome replication patterns and late replicating Y chromosome. The diploid chromosome number is 52. There are 22 pairs of metacentrlcs or submetacentrics (No. 1-22); 3 pairs of acrocentrics(Nos. 23-25), and chromosomes Nos. 23-24 with a secondary constriction near the centromere on the short arm.The X chromosome is a large metacentric, and the Y, the smallest acrocentric. Its karyotype for mula is 44(M or SM)+ 6(A), XY(M, A). The centrimeric distribution of heterochromatin has been demonstrated in some chromosomes. In addion, there are 3 kinds of heterochromatin on the chromosomes:(1) ab sent of centromeric heterochromatin,(2) interstitial heterochromatin,(3) terminal heterochromatin.Interstitial heterochromatin has been observed on the blarm of X chromosome. Y chromosome is completely C-band positive. Silver staining revealed 5 chromosomes with NORs in the male specimen.4 Ag-NORs of theth are heated on the secondary constriction of chromosomes 23 and 24 respectivly,and one of them is located on the Y chromosome which has been confirmed by Fluorescence in situ hybridization(FISH) in the same cell. There are 4 chromosomes with Ag-NORs in the female specimen,and they are also located on the secondary constriction of chromosomes 23 and 24. Moreover,the association of Ag-NORs have been observed. Base on the above results,the relationship in gibbons and the way of chromosome evo lution in the genus Hylobates have been discussed.
The geographic polymorphisms of Y chromosome at YAP locus among 25 ethnic groups in Yunnan, China
SHI Hong DONG Yongli LI Weixiang YANG Jie LI Kaiyuan ZAN Ruiguang XIAO Chunjie,
石宏
,董永利,李卫翔,杨洁,李开源,昝瑞光,肖春杰

中国科学C辑(英文版) , 2003,
Abstract: The genetic polymorphisms of Y chromosome at YAP locus in 25 ethnic groups (33 populations) of China were analyzed in a total of 1294 samples. The average YAP+ frequency of the 33 populations was 9.2%, coinciding with published data of Chinese populations. Primi has the highest YAP+ frequency (72.3%), which is also the highest YAP+ among all the eastern Asian populations studied. The YAP+ occurred in 17 populations studied including Tibetan (36.0%), Naxi (37.5% and 25.5%), Zhuang (21.3%), Jingpo (12.5%), Miao (11.8%), Dai (11.4%, 10.0%, 3.3% and 2.0%), Yi (8.0%), Bai of Yunnan (6.7% and 6.0%), Mongol of Inner Mongolia (4.3%), Tujia of Hu-nan (2.6%), Yao (2.2%) and Nu (1.8%). The other 15 populations are YAP- including Lahu (2 populations), Hani, Achang, Drung, Lisu, Sui, Bouyei, Va, Bulang, Deang, Man and Hui and Mon-gol of Yunnan and Bai of Hunan. The YAP+ frequencies varied among the different ethnic groups studied, and even different among the same ethnic group living in different geographic locations. Using the genetic information, combined with the knowledge of ethnology, history and archaeology, the origin and prehistoric migrations of the ethnic groups in China, especially in Yunnan Province were discussed.
Study on the Expression of Proto-oncogenes c-myc,c-H-ras, c-sis in Ovary and Testis of Kunming Mice
原癌基因c-myc、c-H-ras、c-sis在小鼠卵巢和睾丸中的转录表达研究 Study on the Expression of Proto-oncogenes c-myc,c-H-ras,c -sisin Ovary and Testis of Kunming Mice

WANG Xiaoyan,TAN Deyong,ZHOU Xiang,ZAN Ruiguang,
王晓燕
,谭德勇,周翔,昝瑞光WANG Xiao-yan,TAN De-yong,ZHOU Xiang,ZHN Rui-guang

遗传 , 1998,
Abstract: 以地高辛标记c-myc、c-H-ras、c-sis基因作探针,利用组织切片原位杂交的方法,检测了昆明种小鼠5周龄、10周龄和孕期卵巢,以及1天龄、5周龄和10周龄睾丸,初步研究了这3种原癌基因在生殖腺中的转录表达及其可能的功能作用。结果显示:(1)c-myc基因在孕鼠卵巢的个别卵泡的卵泡细胞中有强转录信号,但在3组卵巢的卵母细胞中及3组睾丸切片中均未见杂交信号。(2)c-H-ras基因在孕鼠卵巢黄体中有较强转录表达,但在3组卵巢的卵母细胞中及3组睾丸切片中均无杂交信号,(3)c-sis基因在10周龄睾丸曲细精管的精原细胞层和精母细胞有强转录表达,而在1天龄、5周龄睾丸及3组卵巢切片中均无杂交信号。上述结果表明:c-myc基因可能与精子发生和卵子的发育关系不大,但可能与卵泡的退化有关;c-H-ras基因可能与精子发生和卵子的发育关系也不大,但可能与妊娠黄体的形成有关;c-sis基因可能与卵子的发育无关,但可能与精子的发生密切相关
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