Results 61 to 70 of about 5,995 (167)

Stress driver analysis of annual wild soybean (Glycine soja) population decline and implications for the protection of wild soybean populations in China

open access: yesEcological 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

黑鹳微卫星位点的筛选及遗传特点分析

open access: yes野生动物学报, 2019
黑鹳是重要的濒危物种,在我国动物园中已经建立了稳定的人工饲养种群,成为这一个物种的活体基因库。当前,该种群需要开展精准的遗传管理,微卫星是达到精准管理的重要遗传标记,但是,黑鹳的微卫星位点尚未有报道。本研究从白鹳、东方白鹳、林鹳和大蓝鹭4个物种中,选择29个扩增效果较好、具有多态性的微卫星位点,通过交叉扩增,测试在黑鹳的可用性。结果显示,共有18个位点能够成功扩增,其中1个位点(Cc01)分型困难,10个位点(Cc05、Cc06、WSμ13、WSμ14、Cbo102、Cbo121、Cbo133 ...
仲光启 1 由玉岩 2 徐艳春 1   +1 more
doaj  

Simple sequence repeats and their expansions: role in plant development, environmental response and adaptation

open access: yesNew Phytologist, Volume 247, Issue 2, Page 504-517, July 2025.
Summary Repetitive DNA is a feature of all organisms, ranging from archaea and plants to humans. DNA repeats can be seen both in coding and in noncoding regions of the genome. Due to the recurring nature of the sequences, simple DNA repeats tend to be more prone to errors during replication and repair, resulting in variability in their unit length ...
Sridevi Sureshkumar   +3 more
wiley   +1 more source

基于微卫星复合扩增的马来穿山甲个体识别研究

open access: yes野生动物学报, 2022
利用12个微卫星位点复合扩增构建马来穿山甲(Manis javanica)个体识别体系,评估其种群遗传多样性和遗传结构。结果显示:重构的个体识别体系累积无关个体基因型匹配概率(P(ID))和同胞个体基因型匹配概率(P(ID)sibs)分别为6.48×10-16和9.65×10-6,具有较高的鉴别力和灵敏度。在135只马来穿山甲个体上共检测出155个等位基因,多态信息含量(PIC)为0.733,平均等位基因数(Na)为12.91,平均观测杂合度(Ho)为0.631,平均期望杂合度(He)为0.756 ...
李嘉昊   +5 more
doaj  

Establishment of 43-plex SNP Typing System and Its Forensic Application [PDF]

open access: yes, 2018
Objective To evaluate the application of 43 -plex SNP typing system in forensic science. Methods The typing of 43 SNP loci in 123 unrelated Han individuals from East China was detected by MALDI-TOF-MS.
LI Ya-nan, LI Min, JIANG Lei,et al
core   +1 more source

Diversity and Ecological Factors Influencing Medicinal Plant Use Among Ethnolinguistic Groups in the Philippines 21世纪菲律宾人类文化语言学族群药用植物多样性及其生态关联研究

open access: yesIntegrative Conservation, Volume 4, Issue 2, Page 231-245, June 2025.
Plant order‐level Sankey plot illustrating plant use of ethnolinguistic groups for key disease types based on organ systems and use. Each node represents the strength of its interaction or usage. ABSTRACT Many human populations rely on natural remedies for health and healing, with traditional medicinal plants playing a vital role in diverse ...
Krizler C. Tanalgo   +15 more
wiley   +1 more source

南京地区圈养黄颊长臂猿核心种群的遗传多样性分析

open access: yes野生动物学报, 2020
黄颊长臂猿属于IUCN濒危物种,仅分布于老挝、越南和柬埔寨。该物种微卫星的研究尚未报道。本研究,对黄颊长臂猿SSR位点进行筛选,并对南京地区圈养黄颊长臂猿种群进行了遗传多样性分析,统计了等位基因数、有效等位基因数,计算了群体杂合度、多态信息含量(PIC)、亲缘系数等参数。结果显示,共获得黄颊长臂猿11个多态性微卫星位点,等位基因数在2—5之间,多态信息含量为0.175—0.701,观测杂合度(Ho)为0.067—0.8,期望杂合度(He)为0.191—0.770,其个体间亲缘系数普遍偏高 ...
陈蓉吕, 冉程家, 求傅, 兆水
doaj  

分子标记技术在野生动物保护研究中的应用

open access: yes野生动物学报, 2012
中国野生动物资源丰富,然而野生动物的保护目前仍较多使用一些宏观保护策略和描述性研究手段,对其保护和评价的分子研究却相对落后。分子标记作为第四代遗传标记,自建立以来,以其多方面的优势在野生动物保护研究领域得到了越来越广泛的应用。本文介绍了限制性片段长度多态性、随机扩增多态性、扩增片段长度多态性和微卫星等分子标记的基本原理及其优缺点,综述了分子标记技术在野生动物种群遗传结构、亲缘关系和系统分类、遗传图谱构建和基因定位、物种鉴定和个体识别等方面的应用和研究概况,同时对应用前景进行了展望 ...
邢亚琳   +4 more
doaj  

基于简化基因组测序技术的喜马拉雅旱獭遗传多样性分析

open access: yes野生动物学报, 2023
为揭示喜马拉雅旱獭(Marmota himalayana)的遗传进化机制,基于双酶切RAD(dd-RAD)测序技术,对青海省3个地区(乐都、玉树、黄南)44例喜马拉雅旱獭简化基因组测序分析,通过SNP位点刻画其遗传特性,构建系统进化树,分析种群结构特征,从基因水平分析不同地区个体之间的遗传进化关系。结果显示:3个地区喜马拉雅旱獭共获得19 279 845个SNP位点,具有丰富的遗传多样性,各地区喜马拉雅旱獭的观测杂合度(Ho)为0.236~0.269,期望杂合度(He)为0.232~0.254 ...
李优, 南新营, 赵坤钰, 李耀东
doaj  

Sequence characterization and evolutionary analysis of S-RNase gene among five genera Pomoideae [PDF]

open access: yes
[Objective] In order to avoid self-pollination, self-incompatibility is a common phenomenon in 5 genera in Pyridae fruit trees during evolution. In order to understand the latest isolation and identification of S-RNase gene in pear incompatibility, we ...
LIANG Wenjie, Wuyun Tana, XIE Zhiliang
core   +1 more source

Home - About - Disclaimer - Privacy