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The Ami and Yami aborigines of Taiwan and their genetic relationship to East Asian and Pacific populations

ABSTRACT: The Ami and Yami aborigines of Taiwan and their genetic relationship to East Asian and Pacific populations

PROVIDER: PRJNA638609 | ENA |

REPOSITORIES: ENA

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The Ami and Yami aborigines of Taiwan and their genetic relationship to East Asian and Pacific populations

Project description:We combined new data with previously published data (PMID: 25877615, 26811443, 29379068, 18292342, 24297229, 27302840, 24395773 and 30846778) to compare phylogenetic relationships of the Ami and Yami aborigenes of Taiwan to groups from mainland Southeast Asia, island Southeast Asia and Oceania.

2021-08-23 | GSE152194 | GEO

Aborigines of Taiwan and their genetic relationship to East Asian and Pacific populations

Project description:Aborigines of Taiwan and their genetic relationship to East Asian and Pacific populations

| PRJNA638622 | ENA

Aborigines of Taiwan and their genetic relationship to East Asian and Pacific populations

Project description:This SuperSeries is composed of the SubSeries listed below.

2020-06-10 | GSE152200 | GEO

The Ami and Yami aborigines of Taiwan and their genetic relationship to East Asian and Pacific populations.

Project description:This article reports on the genetic characteristics of the Ami and Yami, two aboriginal populations of Taiwan. Y-SNP and mtDNA markers as well as autosomal SNPs were utilized to investigate the phylogenetic relationships to groups from MSEA (mainland Southeast Asia), ISEA (island Southeast Asia), and Oceania. Both the Ami and Yami have limited genetic diversity, with the Yami having even less diversity than the Ami. The partitioning of populations within the PCA plots based on autosomal SNPs, the profile constitution observed in the structure analyses demonstrating similar composition among specific populations, the average IBD (identical by descent) tract length gradients, the average total length of genome share among the populations, and the outgroup f3 results all indicate genetic affinities among populations that trace a geographical arc from Taiwan south into the Philippine Archipelago, Borneo, Indonesia, and Melanesia. Conversely, a more distant kinship between the Ami/Yami and MSEA based on all the markers examined, the total mtDNA sequences as well as the admixture f3 and f4 analyses argue against strong genetic contribution from MSEA to the Austronesian dispersal. The sharing of long IBD tracts, total genome length, and the large number of segments in common between the Ami/Yami and the Society Archipelago populations East Polynesia standout considering they are located about 10,700 km apart.

| S-EPMC8298601 | biostudies-literature

Single-cell transcriptomics of East-Asian pancreatic islets cells

Project description:Single-cell RNA-seq (scRNA-seq) of pancreatic islets have reported on α- and β-cell gene expression in mice and subjects of predominantly European ancestry. We aimed to assess these findings in East-Asian islet-cells. 448 islet-cells were captured from three East-Asian non-diabetic subjects for scRNA-seq. Hierarchical clustering using pancreatic cell lineage genes was used to assign cells into cell-types. Differentially expressed transcripts between α- and β-cells were detected using ANOVA and in silico replications of mouse and human islet cell genes were performed. We identified 118 α, 105 β, 6 δ endocrine cells and 47 exocrine cells. Besides INS and GCG, 26 genes showed differential expression between α- and β-cells. 10 genes showed concordant expression as reported in rodents, while FAM46A was significantly discordant. Comparing our East-Asian data with data from primarily European subjects, we replicated several genes implicated in nuclear receptor activations, acute phase response pathway, glutaryl-CoA/tryptophan degradations and EIF2/AMPK/mTOR signaling. Additionally, we identified protein ubiquitination to be associated among East-Asian β-cells. We report on East-Asian α- and β-cell gene signatures and substantiate several genes/pathways. We identify expression signatures in East-Asian β-cells that perhaps reflects increased susceptibility to cell-death and warrants future validations to fully appreciate their role in East-Asian diabetes pathogenesis.

2017-08-11 | GSE97655 | GEO

Transcriptional profile of Beijing/East-Asian Mycobacterium tuberculosis isolates

Project description:Transcriptional profile comparison among Beijing and non-Beijing M. tuberculosis isolates. Three M. tuberculosis strains were compared. The laboratory reference strain, H37Rv, belongs to the Euro-American or lineage 4. Two clinical isolates of the East-Asian or lineage 2: 98_1663 is a pre-Beijing or Group 1 isolate, and HN878 is a Beijing or Group 5 isolate. Three replicates were performed for each comparison using two different biological samples.

2016-06-24 | E-GEOD-83677 | biostudies-arrayexpress

North East Asian Dryophytes species

Project description:Yellow sea mediated segregation between North East Asian Dryophytes species

| PRJEB36680 | ENA

Identification of Prognostic Genes for Recurrent Risk Prediction in Triple Negative Breast Cancer Patients in Taiwan

Project description:Discrepancies in the prognosis of triple negative breast cancer exist between Caucasian and Asian populations. Yet, the gene signature of triple negative breast cancer specifically for Asians has not become available. Therefore, the purpose of this study is to construct a prediction model for recurrence of triple negative breast cancer in Taiwanese patients. Whole genome expression profiling of breast cancers from 185 patients in Taiwan from 1995 to 2008 was performed, and the results were compared to the previously published literature to detect differences between Asian and Western patients. Pathway analysis and Cox proportional hazard models were applied to construct a prediction model for the recurrence of triple negative breast cancer. Most expression data of samples (181/185) were reanalyzed from previous studies already uploaded to GEO (see "reanalysis of" links below). Four additional gene expression profiling data of triple negative breast cancer sample were added to this study.

2012-02-02 | E-GEOD-33095 | biostudies-arrayexpress

Assessing Genetic Diversity of Asian Salamanders (Hynobiidae) lived in Far East Asia using Transcriptome data

Project description:Asian salamander Hynobiidae is commonly observed in the Far East Asia regions, including Korea, Japan, China, and the eastern region of Russia. In Korea, there are four Hynobiidae species known to be lived: Hynobius leechii, Hynobius quelpaertensis, Hynobius yangi, and recently reported Hynobius unisacculus. However, even H. leechii which is broadly colonized in Korea peninsula seems to have a new species candidate, which has distinctive genetic and phenotypic characteristics. Genomic resources are essential to understand the current status of these species, but due to the large size of their genomes (about 16 to 20 Gb), it is not easy to analyze. To reveal the genomic characteristics of these species, we constructed more than ten thousands of protein-coding gene sequences from multiple samples of each species, using the de novo transcriptome assembly approach from RNA-Seq data, confirming their taxonomic relationship which was reported based on mitochondrial DNA and marker genes. Also, by comparing previously reported transcriptome of Hynobius chinensis and Hynobius retardatus, lived in China and Japan, respectively, we found that Korean species have unique genetic signatures. By comparing vertebrate model organism genes, we reported Hynobidaii specific proteins. These data would be a useful resource to study other Caudata species in the future. This research was supported by the National Institute of Biological Resources, Republic of Korea, under the project "Genetic diversity of animal resources” (NIBR201703203 and NIBR201803101).

2019-12-24 | GSE137677 | GEO

Characterization and comparison of two epidemic community-associated methicillin resistant Staphylococcus aureus clones of ST59 lineage

Project description:Comparing two subclones (Taiwan clone and Asian-Pacific clone) of CA-MRSA ST59. The Taiwan clone carries the Panton-Valentine leukocidin (PVL) genes, the staphylococcal chromosomal cassette mec (SCCmec) VT and is frequently isolated from patients with severe disease. The Asian-Pacific clone is PVL-negative, carries SCCmec IV, and is a frequent colonizer of healthy children.

2012-05-31 | E-MEXP-3627 | biostudies-arrayexpress

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