Results 21 to 30 of about 5,093 (142)

D-loop Sequence Variation of Mitochondrial DNA in Captive Chinese Alligator [PDF]

open access: yes, 2003
扬子鳄 (Alligatorsinensis)是中国特有的珍稀爬行动物 ,至 2 0 0 0年 ,野生扬子鳄的个体数已不足 15 0条 ,作为保护这一物种的措施之一 ,先后于 80年代初建起了 2个养殖场 ,现人工繁殖的扬子鳄总数已达 90 0 0余条。为揭示扬子鳄种群遗传多样性 ,从两个饲养种群中采集了 42个个体的样品 ,其中宣州样品 33个 (XZSP) ,长兴样品 9个(CXSP) ,用PCR方法扩增mtDNA控制区 ,扩增产物纯化后直接用ABI 310全自动遗传分析仪荧光标记测序 ,得到其中 ...
朱伟铨, 王义权, 王朝林
core  

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

SWEET1‐mediated glucose transport is crucial for energy availability in Arabidopsis

open access: yesNew Phytologist, Volume 249, Issue 4, Page 1816-1830, February 2026.
Summary The stress‐responsive hormone abscisic acid (ABA) is known for its inhibitory effects on various physiological processes, including seed germination, often resulting in energy deprivation. Interestingly, ABA‐induced germination inhibition can be alleviated by exogenous glucose (Glc), mimicking a functional interplay between ABA and sugar ...
Xueyi Xue   +3 more
wiley   +1 more source

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  

Genetic Confirmations of Dwarf Lemurs Across Madagascar Highlights Complex Biogeographic Patterns 马达加斯加全境鼠狐猴的遗传确认揭示了复杂的生物地理模式

open access: yesIntegrative Conservation, Volume 4, Issue 4, Page 665-674, December 2025.
Using a diagnostic mitochondrial marker gene, we document the presence of furry‐eared dwarf lemurs, a species known from Madagascar's eastern montane rainforests, in several forest fragments across the island's central highlands. These findings raise new questions about when this species colonized these sites, how they tolerate these changing and ...
Marina B. Blanco   +27 more
wiley   +1 more source

The application of microsatellite DNA markers in conservation genetics of endangered animals [PDF]

open access: yes, 2004
通讯作者Author for correspondence. E-mail : wangyq @xmu. edu. cn[中文摘要]微卫星DNA广泛分布于真核生物基因组中 ,具有多态性高、共显性遗传、选择中性、易于操作等特点 ,是一种极具应用价值的分子遗传标记 ,近年来在濒危动物保护遗传学研究中得到越来越多的应用。微卫星DNA高度多态性提供的高分辨率遗传信息 ,使其不仅适合个体水平的亲子鉴定与交配系统研究 ,而且也已成为种群遗传结构与多样性分析的有效分子标记。微卫星分析所需的DNA量极少 ...
王义权, 黄磊
core  

Integrating Plant Tissue Culture and DNA Barcoding: Cutting‐Edge Technologies for Plant Conservation in Sri Lanka 整合植物组织培养与dna条形码技术:斯里兰卡植物保护的前沿技术

open access: yesIntegrative Conservation, Volume 4, Issue 4, Page 555-568, December 2025.
Brief summary: Sri Lanka's biodiversity is threatened by habitat loss, climate change, and ineffective traditional conservation methods. Integrating plant tissue culture and DNA barcoding offers scalable, precise tools for conserving rare and endemic species.
Mylange Dona Kasundi Mekhala Gunasena   +2 more
wiley   +1 more source

组蛋白化学修饰与12/15-脂氧化酶代谢途径在糖尿病肾病发展中的作用

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2023
糖尿病肾病(DKD)是糖尿病患者最常见的微血管并发症之一,也是终末期肾衰竭的主要原因,其发病机制比较复杂。大量实验证实表观遗传学机制包括组蛋白化学修饰与脂质代谢产物12/15脂氧化酶(12/15-LO)参与调控DKD的特征性病理生理过程,本综述将从他们之间的相互作用关系出发,进一步探讨DKD发病机制,为DKD的治疗提供新的研究方向。
罗婧, 远航
doaj  

A Piece of the Puzzle: Evaluating the Effectiveness of the Newly Designated Qilianshan National Park (China) and Its Contribution to Snow Leopard (Panthera Uncia) Habitat Connectivity 拼图之一:评估新建祁连山国家公园 (中国) 的有效性及其对雪豹 (Panthera Uncia) 栖息地连通性的贡献

open access: yesIntegrative Conservation, Volume 4, Issue 3, Page 287-301, September 2025.
Qilianshan National Park covers approximately 40% of core snow leopard habitat patches and 50% of movement corridors between patches. Including more of these important areas within the park boundaries should be considered, as the Qilianshan National Park sits at a pivotal juncture between critical snow leopard habitat in China and Mongolia, and may ...
Aliana Norris   +6 more
wiley   +1 more source

基于遗传算法的套管柱优化设计方法

open access: yesShiyou jixie, 2012
针对复杂地质条件下套管外载荷多变的特点,建立了基于遗传算法的套管柱优化设计方法。应用遗传算法理论,确定染色体编码方式及初始种群的产生方法,染色体评估函数及遗传操作,建立基于遗传算法的套管柱优化设计模型,从而克服了传统套管柱设计方法在复杂地质条件下套管柱强度设计中运算过程复杂,无法兼顾套管成本与风险因素的缺点。对普光气田某井套管柱进行的设计验证情况表明,该方法设计结果准确可靠,既提高了套管柱可靠性,又有利于降低成本。该项研究为复杂地质条件下优化套管柱设计提供了新的方法。
何英明   +4 more
doaj  

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