Results 11 to 20 of about 1,002 (103)

Noninvasive genetic monitoring of Chinese pangolin (Manis pentadactyla) from Darjeeling district of Northwest Bengal, India 印度西孟加拉邦大吉岭地区中华穿山甲(Manis pentadactyla)的非损伤遗传监测

open access: yesWildlife Letters, Volume 1, Issue 1, Page 15-22, March 2023., 2023
Image of Chinese pangolin from study areas (top left), sampling location map (top right). Median joining network of Chinese pangolin population (size of circles represents the relative frequency of that haplotype present in the population). B) Demographic history of Chinese pangolin population estimated using Bayesian skyline plot.
Prajnashree Priyambada   +11 more
wiley   +1 more source

Evaluating surrogates of genetic diversity for conservation planning

open access: yesConservation Biology, Volume 35, Issue 2, Page 634-642, April 2021., 2021
Abstract Protected‐area systems should conserve intraspecific genetic diversity. Because genetic data require resources to obtain, several approaches have been proposed for generating plans for protected‐area systems (prioritizations) when genetic data are not available. Yet such surrogate‐based approaches remain poorly tested.
Jeffrey O. Hanson   +9 more
wiley   +1 more source

Genetic origins and climate‐induced erosion in economically important Asian walnuts

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract The global climate is undergoing unprecedented changes, posing significant threats to species persistence. However, the spatiotemporal impacts on genetic diversity remain poorly understood, hindering species conservation and management. Walnuts, generally referred to as Juglans regia and J. sigillata, are economically vital in Asia, but little
Peng‐Zhen Fan   +17 more
wiley   +1 more source

The potential influence of genome‐wide adaptive divergence on conservation translocation outcome in an isolated greater sage‐grouse population

open access: yesConservation Biology, Volume 38, Issue 4, August 2024.
Abstract Conservation translocations are an important conservation tool commonly employed to augment declining or reestablish extirpated populations. One goal of augmentation is to increase genetic diversity and reduce the risk of inbreeding depression (i.e., genetic rescue).
Shawna J. Zimmerman   +5 more
wiley   +1 more source

Genetic diversity of the critically endangered Blue‐crowned laughingthrush (Garrulax courtoisi) 极度濒危的蓝冠噪鹛 (Garrulax courtoisi) 的遗传多样性

open access: yesWildlife Letters, Volume 2, Issue 2, Page 73-82, June 2024.
Molecular markers are widely used in conservation genetics of wildlife. A total of 15 novel microsatellite loci with high polymorphism of Blue‐crowned laughingthrush were developed in this study. The genetic diversity level of wild individuals was higher than two captive populations including Ocean Park Hong Kong and Nanchang Zoo. The genetic diversity
Xinghe Gao   +8 more
wiley   +1 more source

中国南方食管鳞癌D5S107和D5S408杂合性丢失与微卫星不稳定性

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2008
【目的】研究中国南方食管癌高发地区(潮汕地区)食管鳞癌5号染色体长臂(5q)部分微卫星标记的杂合性丢失(LOH)和微卫星不稳定(MSI),为食管鳞癌相关抑癌基因的定位提供依据。【方法】采用PCR银染技术,检测58例配对食管鳞状细胞癌标本多个微卫星标记(D5S107;SHGS31088;D5S816;D5S625和D5S408)的杂合性丢失和微卫星不稳定。【结果】SHGS31088,D5S816和D5S625杂合性丢失率和微卫星不稳定都较低;而D5S107和D5S408的杂合性丢失率分别为48.5%和34.
李小东   +7 more
doaj  

高寒区多源降水产品精度与水文模拟效果评估——以雅鲁藏布江流域和拉萨河流域为例

open access: yesShuitu Baochi Xuebao, 2023
卫星降水产品在缺资料地区开展水文气象研究及径流模拟中发挥着至关重要的作用,然而卫星降水产品的精度可能会影响径流模拟效果。采用多种统计指标和VIC水文模型综合评估5种卫星降水产品(CMORPH-BLD、GSMaP_Gauge、CMFD、MSWEP和PERSIANN-CDR)在雅鲁藏布江流域的精度和拉萨河流域的水文模拟效果。结果表明:(1) CMORPH_BLD和GSMaP_Gauge在少雨季存在低估,CMFD在少雨季与观测值具有很好的一致性。MSWEP和PERSIANN-CDR在多雨季和少雨季存在高估 ...
班春广   +5 more
doaj  

微卫星不稳定性与卵巢癌的初步研究

open access: yesZhongguo shiyan zhenduanxue, 2010
目的检测微卫星不稳定与卵巢癌的关系。方法收集卵巢癌患者及对照组的血液标本,提取循环血DNA,设计特异性引物,采用PCR-SSCP及测序分析的方法检测卵巢癌患者循环血中微卫星不稳定性与卵巢癌易感性的关系,分析微卫星不稳定性与卵巢癌患者的病理类型、临床病理分期等相关性。结果卵巢癌组中浆液性囊腺癌、粘液性囊腺癌、子宫内膜样癌、库肯勃瘤及其他类型发生微卫星不稳定的频率相比较差异具有显著性 ...
冷维春, 刘俊宝, 陈凤
doaj  

大兴安岭南麓东北马鹿种群遗传多样性分析

open access: yes野生动物学报, 2023
由于人类活动干扰及自然环境变化,东北马鹿(Cervus elaphus xanthopygus)的生存面临诸多问题。为掌握东北马鹿遗传多样性现状,进而为马鹿种群的健康状况提供评估依据,利用线粒体Cyt b基因和微卫星2种分子标记对内蒙古大兴安岭南麓高格斯台罕乌拉国家级自然保护区内的东北马鹿进行种群遗传多样性评估。结果表明:246份新鲜马鹿粪便隶属于182只个体;微卫星标记表明平均期望杂合度为(0.729±0.016),平均观测杂合度为(0.768±0.029),线粒体标记表明单倍型多样性为(0.347 ...
李峥, 郭金昊, 刘鑫鑫, 张明海
doaj  

虎皮鹦鹉全基因组中微卫星分布规律研究

open access: yes野生动物学报, 2017
对虎皮鹦鹉(Melopsittacus undulatus)全基因组中微卫星分布特征进行了分析,查找到l~6个碱基重复类型的微卫星序列共90 346个,约占整个基因组总长度的序列(1.1 Gb)的0.41%,分布频率为82.9/Mb。不同类型微卫星中,单碱基重复类型数目最多,为50 349个,占总数的55.7%; 其次是二、四、三、五、六碱基重复单元序列,分别占到总数的16.3%,13.7%,10.8%,2.9%,0.5%。单碱基微卫星中A重复类型数量最多,二碱基中AT最多,三碱基中AAT ...
黄 杰 原宝东 杨承忠
doaj  

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