Results 31 to 40 of about 8,383 (159)
Accurate species identification is critical for conserving endangered Firmiana trees in China. However, morphological similarities among closely related Firmiana species complicate its taxonomic identification. We conducted genome skimming on 62 samples representing all 10 Chinese species and discovered nrITS as the optimal DNA barcode, achieving 100 ...
Li‐Jun Yan +8 more
wiley +1 more source
基于特征性脂肪酸和甘油三酯指标的油茶籽油掺伪 定性鉴别模型对比分析
为解决油茶籽油掺伪其他植物油的定性鉴别问题,在油茶籽油中分别掺入大豆油、花生油、葵花籽油、棉籽油、葡萄籽油、菜籽油、棕榈油和米糠油,设置高和低两种不同掺伪梯度,基于14个特征性脂肪酸和甘油三酯指标,运用Python语言构建并对比分析了二分类决策树模型、多分类决策树模型和多层感知机人工神经网络(MLP-ANN)模型用于油茶籽油掺伪定性鉴别的效果。结果表明:高和低掺伪梯度下,二分类决策树模型对油茶籽油掺伪其他植物油的定性鉴别的准确率均达到0.95以上;多分类决策树模型的精确率和准确率在高掺伪梯度下均达到了0.
孙婷婷1,2,刘剑波3,任佳丽1,2,钟海雁1,2,周波1,2SUN Tingting1,2, LIU Jianbo3, REN Jiali1,2, ZHONG Haiyan1,2, ZHOU Bo1,2
doaj +1 more source
The Genome of Phoebe zhennan (Lauraceae) and Comparative Genomics of Phoebe 楠木(樟科)基因组与楠属植物比较基因组学研究
Phoebe zhennan is a Chinese endemic and valuable timber species of Phoebe (Lauraceae). We present a chromosome‐level genome assembly of P. zhennan. Our research provides novel insights into the genome evolution of Phoebe, including whole‐genome duplication, phylogenetic relationships of magnoliids, and key MYB regulatory genes involved in lignin ...
Mao Yameng +3 more
wiley +1 more source
Preliminary study on population genetic diversity of the little egret (Egretta garzetta) with microsatellite loci [PDF]
白鹭(Egrettagarzetta)是在全球分布广泛的湿地鸟类,曾被列入《濒危野生动植物种国际贸易公约》名单附录III(2003)。为对其遗传多样性等种群遗传学特征进行研究,本研究筛选获得用于白鹭种群遗传学研究的12个多态性微卫星位点,建立了白鹭羽毛的微卫星分型技术体系。在此基础之上,本文初步研究了中国沿海三个白鹭繁殖种群(广西防城港的巫头村、福建厦门猫屿、浙江舟山馒头山)2010年的种群遗传多样性和遗传结构。 微卫星筛选主要利用跨种扩增的方法,从黄嘴白鹭和棕颈鹭的已知位点中选择高多态性的位点进行扩增,
管昊
core
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. This review emphasizes the potential of biotechnological approaches to enhance conservation accuracy and ...
Mylange Dona Kasundi Mekhala Gunasena +2 more
wiley +1 more source
【目的】探讨碘化丙锭(PI)和6-羧基荧光素二乙酸酯(6-cFDA)鉴别死、活结核分枝杆菌的性能,为应用流式细胞术定量检测与分析结核分枝杆菌药物敏感性和异质性耐药方法的创建提供基础性实验依据。【方法】应用PI和6-cFDA分别对10株1麦氏浊度结核分枝杆菌纯培养活菌悬液和其相应的1麦氏浊度85℃加热30min的死菌悬液进行染色,应用流式细胞术检测其平均荧光强度(MFI),依据受试者工作特征曲线(ROC)确定区分死菌与活菌的MFI界值,然后对另外10株活菌悬液和10株死菌悬液进行相同实验 ...
王伟亮 +7 more
doaj
Hyperkeratosis of (a) the footpads and (b) the nasal planum. ABSTRACT Background Canine leishmaniosis (CanL) due to Leishmania infantum remains common, and veterinarians do not always follow scientifically sound approaches for diagnosis, treatment and prevention. Objectives To provide consensus guidelines for diagnosis and evidence‐based guidelines for
Manolis N. Saridomichelakis +9 more
wiley +1 more source
Contesting and Controlling Abortion in China’s Courts [PDF]
The decision of the United States Supreme Court in Dobbs v. Jackson Women’s Health Organization has brought renewed global attention to how legal systems protect and restrict women’s reproductive autonomy. Central themes have included how the rollback of
Bodurtha, Molly +3 more
core +2 more sources
Assessing the genetic diversity of edible insects harvested from the wild is a pre‐requisite for designing conservation and management policies. The caterpillars of Gynanisa maja (Saturniidae) are harvested in large numbers in mopane woodlands in southern Africa, where they represent a seasonal source of income and nutrition to many rural communities ...
Zwannda Nethavhani +3 more
wiley +1 more source

