搜索结果: 1-11 共查到“生物学 mtDNA D-loop”相关记录11条 . 查询时间(0.105 秒)
Genetic Diversity and Phylogenetic Analysis of South-East Asian Duck Populations Based on the mtDNA D-loop Sequences
Duck Populations D-loop Region Haplotype Mitochondrial DNA Phylogeny
2016/12/28
The maternally inherited mitochondrial DNA (mtDNA) D–loop region is widely used for exploring genetic relationships and for investigating the origin of various animal species. Currently, domestic duck...
贵州东北部黑叶猴种群mtDNA D-loop序列多态性
黑叶猴 线粒体控制区 单倍型 遗传多样性
2016/7/18
贵州东北部作为黑叶猴在中国的主要分布区之一，黑叶猴的数量在近 30 年急剧下降，栖息地破碎化严重，保护形势不容乐观。深入了解黑叶猴在贵州东北部地区地理种群的分子变异及遗传水平现状，可以为黑叶猴保护提供重要的依据。本文以黑叶猴的粪便、毛发为实验材料，利用线粒体DNA分子标记，对采自贵州东北部地区黑叶猴野生种群79个粪便样品和黔灵公园笼养种群22个粪便样品、5份毛发样品的线粒体控制区(mtDNA D-...
Genetic Diversity of mtDNA D-loop Polymorphisms in Laotian Native Fowl Populations
Native Fowl Genetic Variability mtDNA Maternal Origin
2016/5/16
Here, we studied the genetic diversity of native fowls in Laos by analyzing a mitochondrial DNA (mtDNA) sequence polymorphism. A 546-bp fragment of the mtDNA D-loop region was sequenced in 129 chicken...
Phylogenetic Analysis of a Privately-owned Korean Native Chicken Population Using mtDNA D-loop Variations
D-loop Variation Haplotype Korean Native Chicken mtDNA
2016/5/11
The use of Korean native chicken is increasing, and the discovery of new genetic resources is very important from both economic and genetic conservation points of view. In this study, mtDNA D-loop seq...
Genetic Diversity of mtDNA D-loop and Maternal Origin of Three Chinese Native Horse Breeds
Chinese Western Native Horses Mitochondrial DNA D-loop Genetic Diversity Maternal Origin
2016/5/10
In order to protect the genetic resource of native horse breeds, the genetic diversity of mitochondrial DNA (mtDNA) D-loop of three native horse breeds in western China were investigated. Forty-three ...
婆罗门牛mtDNA D-loop变异及其遗传背景
婆罗门牛 mtDNA D-loop多态性 遗传背景
2009/6/23
对10头原种婆罗门牛mtDNA D-loop全序列912 bp测序，婆罗门牛遗传多样性丰富，检测到的9种单倍型兼有瘤牛(B. indicus)与普通牛(B. taurus)的遗传背景，核苷酸变异率为6.25%，单倍型多态度为0.978±0.054，核苷酸多态度为0.014 30±0.008 68。所有单倍型聚为明显的两大分支，婆罗门牛的大部分单倍型为普通牛单倍型类群， 并占绝对优势(90%)，仅B...
中国蒙古马与国外纯血马mtDNA D-Loop高变区序列比较Sequence Comparing of mtDNA D-Loop Varied Region in Chinese Mongolian Horse and External Thoroughbred Horse
关键词 中国蒙古马 国外纯血马 mtDNA D-Loop 高变区 多态性
2008/1/6
摘要比较分析了4匹中国蒙古马和4匹国外纯血马的线立体DNA（mtDNA）D-Loop高变区400bp核苷酸序列的变异情况。结果发现，4匹中国蒙古马mtDNA D-Loop高变区的平均核苷酸变异率为3.69%，而纯血马的为4.00%，其核苷酸变异类型均包括转换、颠换和缺失3种形式，其中以转换最为常见。核苷酸变异基因座多，并且存在长度变异，不同变异在个体之间差异也很大，因此说明中国蒙古马和国外纯血马的...
新疆三种雅罗鱼属鱼类mtDNA D-loop多态性及起源分化分析Polymorphism and Original Analysis of mtDNA D-loop of Three Leuciscus Species in Xinjiang
新疆三种雅罗鱼 mtDNA D-loop PCR-RFLP 多态性 进化
2007/12/31
摘要用PCR-RFLP技术，对新疆分布的准噶尔雅罗鱼、贝加尔雅罗鱼和高体雅罗鱼的mtDNA D-loop高变区约827bp进行了扩增，用ScaI、HinfI、AluI、DdeI 4种限制性内切核酸酶对56个样本的扩增产物酶切和RFLP分析，共检测到6种单倍型。准噶尔雅罗鱼存在2种单倍型：BDAA和BDBA；贝加尔雅罗鱼存在3种：AAAA、ABAA和ACAA；高体雅罗鱼只有1种。初步认为，准噶尔雅罗...
摘要：
分析中国三种实验用小型猪线粒体DNA (mtDNA)D-loop的多态性,建立各品种品系猪的遗传标记,为各品种品系猪的鉴别提供依据。应用PCR对西双版纳近交系小耳猪、广西巴马小型猪、贵州小型香猪和长白猪血液总DNA样品中mtDNA D-loop进行扩增,用23种限制性内切酶消化,观察其酶切多态。PCR扩增其mtDNA D-loop 5′端227 bp高变区域,应用PCR-SSCP和PCR直...
Genetic Diversity and Phylogenetic Analysis of the mtDNA D-loop Region in Tibetan Sheep
mtDNA D-loop Maternal Sources Tibetan Sheep Genetic Diversity
2016/4/25
Seventeen haplotypes were detected from the complete mitochondrial DNA control region sequences analyzed from eighty individuals of two Tibetan domestic sheep breeds. The nucleotide composition of all...
Genetic Diversity and Origin of Chinese Domestic Goats Revealed by Complete mtDNA D-loop Sequence Variation
Chinese Domestic Goat mtDNA D-loop Genetic Diversity Origin
2016/4/25
China has numerous native domestic goat breeds, but so far there has been no extensive study on genetic diversity, population demographic history, and origin of Chinese goats. To determine the origin ...