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为应对人类活动导致的鱼类种群衰退及遗传多样性流失问题，研究人员通过微卫星标记技术对经济重要种瓦氏黄颡鱼 (Wallago attu)开展种群遗传学研究。结果显示：样本点存在低-中度遗传多样性但种群间分化显著，发现近交与近期瓶颈效应证据，UPGMA树和贝叶斯聚类将种群划分为两大遗传分支。研究揭示了水资源管理对种群结构的显著影响，为保护这一IUCN易危物种提供了关键遗传学依据。

ABSTRACT . GENETICS. Molecular characterization of Chaetomium species using URP-PCR. Rashmi Aggarwal 1. Vandana Sharma 2. Lalit L. Kharbikar 1. Renu 1. 1 Fungal Molecular Plant Pathology Laboratory, ...

这篇研究通过微生物组测序（16S rRNA）和培养方法，首次揭示了母乳喂养期间双歧杆菌（Bifidobacterium）的逆向传播路径：婴儿肠道菌群（尤其是B. breve）通过“乳源逆向迁移”机制反哺母乳微生物组。研究追踪21对母婴（阴道分娩 ...

RIN4a and RIN4b are highly expressed in soybean root hairs. There are four RIN4 genes described in soybean (RIN4a, RIN4b, RIN4c, RIN4d; 33; Fig. 1).A characteristic feature of the AtRIN4 protein is ...

Objective The gut microbiota has been implicated as an environmental factor that modulates obesity, and recent evidence suggests that microbiota-mediated changes in bile acid profiles and signalling ...

Dendrogram based on UPGMA and similarity coefficient using Pearson’s correlation from DGGE band patterns. Caption: Aci1 = initial and Aci2 = final. The reactor was self-inoculated, and then a sample ...

A research team has revealed that yellow catfish populations across China show high overall genetic diversity but low genetic ...