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Environmental changes and uplift of the Qinghai-Tibet Plateau drive genetic diversification and speciation of the birds.
Yi Chuan
January 2025
Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
Being the most magnificent plateau in elevation and size on Earth, the Qinghai-Tibet Plateau has a profound impact on biodiversity due to the unique geographic and climatic conditions. Here we review the speciation patterns and genetic diversity of the birds from the Qinghai-Tibet Plateau in relation to the geological history and climatic changes. First, the uplift of the Qinghai-Tibet Plateau forms a geographic barrier and promotes interspecific and intraspecific genetic differentiation.
View Article and Find Full Text PDFSpeciation studies in the genomic era.
Yi Chuan
January 2025
State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
Since Darwin's era, speciation has been one of the most central issues in evolutionary biology studies. Understanding the processes of species origin is crucial in deepening our understanding of the formation of species biodiversity, which is essential for their protections. However, speciation research has been challenging due to the rather complex evolutionary histories of many extant species.
View Article and Find Full Text PDFThe migration and evolutionary mechanisms of northern Asian populations from the perspective of ancient genomics.
Yi Chuan
January 2025
School of Life Sciences, Jilin University, Changchun 130012, China.
The northern part of Asia, including Siberia, the Mongolian Plateau, and northern China, is not only a crossroads for population exchange on the Eurasian continent but also an important bridge connecting the American continent. This region holds a unique and irreplaceable significance in exploring the origins of humanity, tracking human migration routes, and elucidating evolutionary mechanisms. Despite the limited number of samples unearthed, varying preservation conditions, and constraints of technical means, our understanding of the interactions among populations in northern Asia is still in its infancy.
View Article and Find Full Text PDFAncient DNA elucidates the migration and evolutionary history of northern and southern populations in East Asia.
Yi Chuan
January 2025
Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China.
Over the past decade, the continuous development of ancient genomic technology and research has significantly advanced our understanding of human history. Since 2017, large-scale studies of ancient human genomes in East Asia, particularly in China, have emerged, resulting in a wealth of ancient genomic data from various time periods and locations, which has provided new insights into the genetic history of East Asian populations over tens of thousands of years. Especially since 2022, there emerged a series of new research progresses in the genetic histories of the northern and southern Chinese populations within the past 10,000 years.
View Article and Find Full Text PDFEsophagectomy for Cancer After One Anastomosis Gastric Bypass.
Ann Thorac Surg Short Rep
September 2023
Division of Thoracic Surgery, Department of Surgery, Mayo Clinic, Rochester, Minnesota.
One anastomosis gastric bypass (OAGB) is growing in popularity, although it is potentially associated with biliary gastritis and gastroesophageal reflux esophagitis, with a potential rise in esophageal carcinoma. We describe the surgical management of a 53-year-old man with history of OAGB in whom biliary reflux and esophageal adenocarcinoma developed. We performed a minimally invasive Ivor Lewis esophagectomy, resected the sleeved stomach pouch, created a new conduit out of the remnant greater curve of the remnant stomach with blood supply from an intact gastroepiploic artery, and created an esophagogastric anastomosis.
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