Publications by authors named "Mi-Li Liu"

Demographic history and mutational load are of paramount importance for the adaptation of the endangered species. However, the effects of population evolutionary history and genetic load on the adaptive potential in endangered conifers remain unclear. Here, using population transcriptome sequencing, whole chloroplast genomes and mitochondrial DNA markers, combined with niche analysis, we determined the demographic history and mutational load for three threatened whitebark pines having different endangered statuses, Pinus bungeana, P.

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Article Synopsis
  • The uplift of the Qinghai-Tibetan Plateau likely triggered the divergence of the subsect. Gerardianae, affecting the evolutionary history of three species: Pinus bungeana, P. gerardiana, and P. squamata.
  • Pinus bungeana showed low nucleotide diversity and possibly originated in the southern Qinling Mountains, experiencing population growth since the Last Interglacial period.
  • The divergence of these species occurred approximately 27.18 million years ago, linked to geological changes, and certain chloroplast genes displayed positive selection related to environmental adaptation.
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  • Y. W. Tsui & D. Q. Lu is a unique herb species found only in the Qinling Mountains of China, and researchers analyzed its complete plastid genome using advanced Illumina sequencing technology.
  • The plastid genome is 152,457 base pairs long and contains various regions and a total of 130 genes, including 85 that code for proteins, which indicates its complexity and genetic diversity.
  • The study's findings highlight significant evolutionary differences in gene regions and establish genetic relationships with other species in the Caryophyllaceae family, enhancing our understanding of plant evolution and species variation.
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Hybridization is recognized as a major force in species evolution and biodiversity formation, generally leading to the origin and differentiation of new species. Multiple hybridization events cannot easily be reconstructed, yet they offer the potential to study a number of evolutionary processes. Here, we used nuclear expressed sequence tag-simple sequence repeat and large-scale single nucleotide polymorphism variation data, combined with niche analysis, to investigate the putative independent hybridization events in Notopterygium, a group of perennial herb plants endemic to China.

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Morchella is a kind of precious edible, medicinal fungi with a series of important effects, including anti-tumor and anti-oxidation effects. Based on the data of 18 environmental variables and the distribution sites of wild Morchella species, this study used a maximum entropy (MaxEnt) model to predict the changes in the geographic distribution of Morchella species in different historical periods (the Last Glacial Maximum (LGM), Mid Holocene (MH), current, 2050s and 2070s). The results revealed that the area under the curve (AUC) values of the receiver operating characteristic curves of different periods were all relatively high (>0.

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The forest tree family Aceraceae is widespread in the northern hemisphere and it has ecological and economic importance. However, the phylogenetic relationships and classifications within the family are still controversial due to transitional intraspecific morphological characteristics and introgression hybridization among species. In this study, we determined the evolutionary relationships and molecular evolution of Aceraceae based on plastid phylogenomics and two nuclear gene variations.

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DC. (Rutaceae) is a shrub and/or tree species with the important medicinal and economic values. In this study, the plastid genome of .

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Beug, Voitk & O'Donnell is a typical black morel species. In this study, using the Nanopore sequencing platform, we characterized its whole mitochondrial (mt) genome sequence. Mt genome of .

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Geological and climatic events are considered to profoundly affect the evolution and lineage divergence of plant species. However, the evolutionary histories of tree species that have responded to past geological and climate oscillations in central China's mountainous areas remain mostly unknown. In this study, we assessed the evolutionary history of the endangered and relict tree species in the Qinling Mountains (QM) and adjacent areas in East Asia based on variations in the complete chloroplast genomes (cpDNA) and reduced-genomic scale single nucleotide polymorphisms (SNPs).

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M. C. Chang (Oleaceae) is an endemic medicinal shrub in China.

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W. T. Wang is an endemic herb species in Shaanxi province (China).

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N. E. Brown (Gentianaceae) is a perennial herb plant and only grows in Qinba Mountains in China.

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Historical geological and climatic events are the most important drivers of population expansions/contractions, range shifts, and interspecific divergence in plants. However, the species divergence and spatiotemporal population dynamics of alpine cold-tolerant herbal plants in the high-altitude Qinghai-Tibetan Plateau (QTP) and adjacent areas remain poorly understood. In this study, we investigated population evolutionary history of four endangered Notopterygium herb species in the QTP and adjacent regions.

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Plant plastomes play crucial roles in species evolution and phylogenetic reconstruction studies due to being maternally inherited and due to the moderate evolutionary rate of genomes. However, patterns of sequence divergence and molecular evolution of the plastid genomes in the horticulturally- and economically-important L. species are poorly understood.

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Van Tiegh. (Pinaceae) is a rare and endangered endemic conifer in China. In this study, using the Illumina sequencing platform, we firstly characterized its whole plastid genome sequence.

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The extreme conditions (e.g., cold, low oxygen, and strong ultraviolet radiation) of the high mountains provide an ideal natural laboratory for studies on speciation and the adaptive evolution of organisms.

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