Results 51 to 60 of about 5,340 (168)
, 2007 通过线粒体Cytb基因全序列分析,探讨了青海湖裸鲤和花斑裸鲤的起源关系及其进化模式.系统发育分析进一步支持了青海湖裸鲤和花斑裸鲤3个mtDNA谱系的划分.形态上具有高鳃耙变异的个体未形成特有的进化枝,证明了第一鳃弓外鳃耙变异并不具有系统发育意义.对青海湖裸鲤和花斑裸鲤进化枝扩散模式的网络分析表明,黄河独有的单倍型A1是一个创立者单倍型,全部青海湖裸鲤的样品来自于它的辐射,而青海湖裸鲤可能仅仅起源于黄河花斑裸鲤两个主要支系中的一个 ...
何舜平 +5 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
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
Guangtongxin yanjiu, 2007 文章简要介绍了几种现代非线性优化算法,在两级偏振控制器和时延线级联补偿器结构的基础上,采用遗传算法作为偏振模色散（PMD）补偿中的反馈控制算法进行全局最优化,使偏振度（DOP）实现最大化,实现PMD补偿。文章对遗传算法在二阶PMD补偿中的应用进行了理论分析,并且设计了以TMS320C6711DSK为核心硬件的整套控制结构。
毕辉, 李唐军, 刘向春, 王目光
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The genetic structure and introgression in hybrid zones of Bostrychus sinensis in Fujian and Zhejiang coastal areas. [PDF]
, 2017 中华乌塘鳢(Bostrychussinensis)，隶属于脊椎动物门(Vertebrata)，辐鳍鱼纲(Actinopterygii)，鲈形目(Perciformes)，塘鳢科(Eleotridae)，乌塘鳢属(Bostrychus)。本研究采用了三种分子标记：微卫星标记(SSR)、线粒体DNA(mtDNA)基因序列、核基因RyR3序列检测和分析了闽浙沿海6个地理群体共计534尾中华乌塘鳢样本的杂交带遗传结构及杂交渐渗情况。目前有多种因素可以促进杂交带形成并维持杂交带的稳定，如杂种的性质 ...
梁爽
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New 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
Genetic diversity and population genetic structure of three economically important marine fishes in China [PDF]
, 2013 大黄鱼(LarimichthyscroceaRichardson，1846)作为我国历史上的“海洋四大经济鱼类”之一，由于超强度的捕捞，在上世纪中后期资源濒临枯竭，至今仍无资源恢复的迹象；黑棘鲷(AcanthopagrusschlegeliiBleeker，1854)是我国近岸海域重要的天然经济鱼类和养殖鱼类，海洋环境污染与栖息地破坏以及过度捕捞，导致天然黑棘鲷资源急剧衰减；小型经济鱼类黄鲫(SetipinnatatyValenciennes，1848)在我国渔业资源严重衰退状况下 ...
施晓峰
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Detection of Ancestry Information of Urumqi Mongolians Based on the AIM-InDels Loci Multiplex System [PDF]
, 2019 Objective To explore the genetic background and structure of Urumqi Mongolians, the previously developed 39-AIM-InDels panel for ancestry inference was utilized in the present study.
SHEN Chun-mei, XIE Tong, MEI Shu-yan,et al.
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Integrative 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
Jianzhu Gangjiegou Jinzhan, 2021 为研究某车身焊装车间钢结构生产平台吊点相关的动力特性,首先采用有限元法,建立其梁壳单元模型进行模态分析。其次,进行工作状态下的模态试验,运用功率谱法完成结构模态参数识别;经对比,计算和试验模态分析结果一致性较好,有限元模型精度较高。最后,为提升钢结构生产平台中吊点结构的低阶固有频率,采用改进的非支配排序遗传算法以结构质量和第1阶固有频率为目标函数进行多目标优化;优化后,第1阶固有频率上升114%,而质量仅增加0.6%,满足工程抗震要求。
高云凯, 马超, 段少东, 申振宇
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