Across two phylogeographic breaks: Quaternary evolutionary history of a mountain aspen () in the Hengduan Mountains.

Biogeographical barriers to gene flow are central to plant phylogeography. In East Asia, plant distribution is greatly influenced by two phylogeographic breaks, the Mekong-Salween Divide and Tanaka-Kaiyong Line, however, few studies have investigated how these barriers affect the genetic diversity of species that are distributed across both. Here we used 14 microsatellite loci and four chloroplast DNA fragments to examine genetic diversity and distribution patterns of 49 populations of , a species that spans both the Mekong-Salween Divide and the Tanaka-Kaiyong Line in southwestern China.

A vaccine based on the yeast-expressed receptor-binding domain (RBD) elicits broad immune responses against SARS-CoV-2 variants.

Development of safe and efficient vaccines is still necessary to deal with the COVID-19 pandemic. Herein, we reported that yeast-expressed recombinant RBD proteins either from wild-type or Delta SARS-CoV-2 were able to elicit immune responses against SARS-CoV-2 and its variants. The wild-type RBD (wtRBD) protein was overexpressed in , and the purified protein was used as the antigen to immunize mice after formulating an aluminium hydroxide (Alum) adjuvant.

Appeal: the protection of ancient tree species around the world, taking qilian juniper () as an example.

(the Qilian juniper) is a dominant species in the northeast region of the Qinghai-Tibet Plateau. As such, it is of great significance for maintaining the balance and long-term stability of the ecosystem in this biodiversity hotspot. In this paper, we review the literature related to published in the China National Knowledge Infrastructure and Web of Science.

Building a reference transcriptome for Juniperus squamata (Cupressaceae) based on single-molecule real-time sequencing.

Objectives: Cupressaceae is the second largest family of coniferous trees (Coniferopsida) with important economic and ecological values. However, like other conifers, the members of Cupressaceae have extremely large genome (> 8 gigabytes), which limited the researches of these taxa. A high-quality transcriptome is an important resource for gene discovery and annotation for non-model organisms.

Global potential distribution prediction of Xanthium italicum based on Maxent model.

Alien invasive plants pose a threat to global biodiversity and the cost of control continues to rise. Early detection and prediction of potential risk areas are essential to minimize ecological and socio-economic costs. In this study, the Maxent model was used to predict current and future climatic conditions to estimate the potential global distribution of the invasive plant Xanthium italicum.

Genetic diversity and genetic differentiation of invasive weed Xanthium italicum in China.

Xanthium italicum is an aggressive weed found worldwide. Despite several ecological, morphological, and physiological research on its invasion mechanism, the mechanism of its successful invasion has not been revealed from the viewpoint of population genetics. Thus, we aimed to evaluate the genetic variation within and among populations of the alien invasive weed X.

Two Phytotoxins Isolated from the Pathogenic Fungus of the Invasive Weed Xanthium italicum.

Alternariol and altenuisol were isolated as the major phytotoxins produced by an Alternaria sp. pathogenic fungus of the invasive weed Xanthium italicum. Altenuisol exhibited stronger phytotoxic effect compared with alternariol.