Results 51 to 60 of about 6,924 (166)
Genetic Structure and Breeding System of Kandelia obovata Populations in Zhangjiangkou Mangrove Forest of Fujian Province [PDF]
, 2017 利用9对nSSR引物和3对cpSSR引物，对漳江口红树林国家级自然保护区内秋茄纯林和秋茄＋白骨壤林的秋茄种群进行遗传结构、繁育系统、基因流和空间遗传结构的研究，结果表明： (1)纯林和混交林秋茄种群均存在显著偏离HWE，存在杂合子缺失现象。但并未经历近期瓶颈效应事件。纯林秋茄种群（Na为26.778，He为0.809，I为2.182）和混交林（Na为23.889，He为0.771，I为1.994）均存在高水平的遗传多样性，纯林略高于混交林。纯林秋茄种群共有21个单倍型，显著高于混交林（10个 ...
肖兰
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Genetic diversity of tartary buckwheat based on the sequence analysis of PAL [PDF]
, 2018 Tartary buckwheat is widely cultivated in different areas of China and gradually evolved into genetic diversity. In order to study and utilize the tartary buckwheat, the PAL gene differences of the tartary buckwheat were analyzed on 67 samples,which were
Gao, J. +4 more
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New Phytologist, Volume 247, Issue 5, Page 2086-2097, September 2025.Summary The importance of marine angiosperms, or seagrasses, as foundation species for marine coastal ecosystems is in marked contrast to their low species number of only 70 described taxa. Seagrass species tend to have very similar overall morphologies dictated by hydrodynamic forces of the ocean environment.
Xiaomei Zhang +14 more
wiley +1 more source
野生动物学报, 2019 麋鹿是我国特有重点保护鹿科动物，是全球濒危物种保护的成功范例，具有重要的生态和文化价值。从乌邦寺建群到现今遍布世界的多个小种群来看，麋鹿的数量在逐步增长，生存力和繁殖力未发现有明显下降。麋鹿极小种群复壮造成其中性遗传多样性极度趋同，种群内个体之间的遗传相似系数极高，理论上影响其可持续发展的生存潜力。这些问题引起了学者和保护管理者的极大关注。本文从麋鹿的分类地位、遗传多样性研究概况等方面进行综述，为深入了解我国麋鹿进化地位、遗传多样性状况，加强我国麋鹿遗传资源的保护与管理，以及种群的健康可持续发展提供参考。
张树苗 1 #白加德 1 #李夷平 1 陈颀 1 梁兵宽 2 李俊芳 1 李俊生 3 常江 3
doaj
Genetic Diversity Analysis of Five Populations of Paphia undulata [PDF]
, 2016 采用形态特征和微卫星分子标记对采自菲律宾(PH)、泰国(TH)、福建云霄(YX)、海南儋州(HN)和广西北海(BH)的5个地理群体的波纹巴非蛤(Paphia undulata)进行遗传多样性分析.形态差异分析结果显示,国外群体和国内群体形态差异明显:2个国外群体(PH和TH)形态接近,聚为一支;国内支系中,YX和HN群体的形态较近,先聚为一支,而BH群体的外部形态与前两者差异较大.Hardy-Weinberg平衡检验检测到所有群体在5个位点上均出现不同程度地偏离平衡.5个群体间遗传分化指数(FST,0 ...
张鹏飞 +5 more
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Ecological Solutions and Evidence, Volume 6, Issue 3, July–September 2025.Over the past three decades, a large number of natural wild soybean populations have been declining inexplicably or even have disappeared and their distribution area has significantly decreased in China, and population losses continue unabated. Therefore, this study investigated 20 herbaceous communities of wild soybeans in various habitats in ...
Ke‐Jing Wang, Xiang‐Hua Li
wiley +1 more source
基于线粒体DNA Cyt b研究城市化对上海金线侧褶蛙遗传结构的影响
野生动物学报, 2021 城市化在全球范围内快速扩张，已经成为影响物种进化的重要力量。两栖动物的迁移能力较弱，城市化导致两栖类被完全或部分的隔离，丢失更多的遗传多样性。本研究对上海市的金线侧褶蛙（Pelophylax plancyi）的mtDNA Cyt b 部分序列进行分析，共扩增出235条序列，获得61个单倍型。研究表明城市区域遗传多样性较低，上海市的金线侧褶蛙分化程度处于中低的水平（Max FST=0296；Min FST=0004），各种群之间遗传分化有限。黄浦江及其支流可能作为水上扩散通道，有助于基因交流 ...
张伟 谢汉宾 杨刚 王军馥 李必成 王天厚 王小明
doaj
Population genetic variation and symbiotic and associated bacteria diversity studies of bryozoan Bugula neritina based on high-throughput sequencing [PDF]
, 2016 多室草苔虫是一种重要的药源生物，从这种生物体内提取出的多种草苔虫内酯被证明有着较强的抗癌活性，其中草苔虫内酯bryostatin1是治疗阿尔茨海默症和多种癌症的最有希望的药物来源，而草苔虫内酯bryostatin1的产生与多室草苔虫体内的共生细菌“CandidatusEndobugulasertula”密切相关。然而，国内学者从中国沿海的多室草苔虫中却一直未能成功提取出这种最具药用价值的草苔虫内酯bryostatin1 ...
李海
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Analysis of the genetic diversity of morphological traits of oat germplasms [PDF]
[Objective] The study of genetic diversity in oat germplasm resources not only contributes to the collection and evaluation of germplasm resources, but also has important guiding significance for the production and breeding of oats.
LI Guanyi +4 more
core +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2010 按胸径将浙江省桐庐县白云源森林公园长叶榧群体划分为成体、小树、幼苗3个年龄级,利用RAPD和ISSR分子标记对不同年龄级的遗传多样性及遗传分化进行分析.12个RAPD引物和12个ISSR引物分别扩增出199和180个条带,总多态位点百分率分别为44.72%和56.11%. RAPD和ISSR分析均显示3个年龄级的多态位点百分率、Shannon信息指数、Nei指数以成体最高,小树次之,幼苗最低,表明长叶榧群体遗传变异呈衰退趋势.分子方差分析(AMOVA)表明长叶榧群体不同年龄级内、年龄级间均存在遗传变异 ...
LIJian-hui(李建辉) +2 more
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