The Genetic Diversity, Population Structure, and Historical Dynamics of Wild <i>Pyrus</i> Species on the Yunnan–Kweichow Plateau
Located in the southwestern region of China, the Yunnan–Kweichow Plateau, is closely related to the origins of <i>Pyrus</i> L. Despite this important status, there has been relatively little population genetics research focused on the wild <i>Pyrus</i> species in this area. T...
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2025-01-01
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| author | Xiang Yang Xingguang Dong Kunming Li Ying Zhang Chenxi Xu Hongliang Huo Luming Tian Jiayu Xu Chao Liu Dan Qi Yufen Cao |
| author_facet | Xiang Yang Xingguang Dong Kunming Li Ying Zhang Chenxi Xu Hongliang Huo Luming Tian Jiayu Xu Chao Liu Dan Qi Yufen Cao |
| author_sort | Xiang Yang |
| collection | DOAJ |
| description | Located in the southwestern region of China, the Yunnan–Kweichow Plateau, is closely related to the origins of <i>Pyrus</i> L. Despite this important status, there has been relatively little population genetics research focused on the wild <i>Pyrus</i> species in this area. To address this gap in knowledge, the present study was conducted investigating wild <i>Pyrus</i> species distributions in the Yunnan–Kweichow Plateau region. These analyses entailed the collection of 80 accessions, whole-genome resequencing, and the detection of variants including SNPs, InDels, SVs, and CNVs. Genetic structure analyses revealed clear differences between <i>P. pashia</i> and <i>P. calleryana</i>, where the former was additionally subdivided into five groups. The genetic structure of these accessions was closely aligned with their geographic distribution, highlighting the fragmented nature of wild <i>Pyrus</i> populations on the Yunnan–Kweichow Plateau. Analyses of genetic diversity suggested that the central and easter portions of Yunnan Province are key centers of <i>Pyrus</i> diversity on the Yunnan–Kweichow Plateau, whereas the highest degree of differentiation was observed for wild <i>Pyrus</i> in the southwest and northwest regions. Demographic analyses indicated that wild <i>Pyrus</i> populations on the Yunnan–Kweichow Plateau are currently in a state of population contraction, with evidence of migration events between these populations. |
| format | Article |
| id | doaj-art-7469347ddefa40e6aa1e2ae87b8d5dcf |
| institution | Kabale University |
| issn | 2311-7524 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Horticulturae |
| spelling | doaj-art-7469347ddefa40e6aa1e2ae87b8d5dcf2025-01-24T13:34:47ZengMDPI AGHorticulturae2311-75242025-01-0111110610.3390/horticulturae11010106The Genetic Diversity, Population Structure, and Historical Dynamics of Wild <i>Pyrus</i> Species on the Yunnan–Kweichow PlateauXiang Yang0Xingguang Dong1Kunming Li2Ying Zhang3Chenxi Xu4Hongliang Huo5Luming Tian6Jiayu Xu7Chao Liu8Dan Qi9Yufen Cao10Research Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng 125100, ChinaResearch Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng 125100, ChinaHorticultural Research Institute, Yunnan Academy of Agricultural Sciences, Kunming 650000, ChinaResearch Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng 125100, ChinaResearch Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng 125100, ChinaResearch Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng 125100, ChinaResearch Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng 125100, ChinaResearch Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng 125100, ChinaResearch Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng 125100, ChinaResearch Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng 125100, ChinaResearch Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng 125100, ChinaLocated in the southwestern region of China, the Yunnan–Kweichow Plateau, is closely related to the origins of <i>Pyrus</i> L. Despite this important status, there has been relatively little population genetics research focused on the wild <i>Pyrus</i> species in this area. To address this gap in knowledge, the present study was conducted investigating wild <i>Pyrus</i> species distributions in the Yunnan–Kweichow Plateau region. These analyses entailed the collection of 80 accessions, whole-genome resequencing, and the detection of variants including SNPs, InDels, SVs, and CNVs. Genetic structure analyses revealed clear differences between <i>P. pashia</i> and <i>P. calleryana</i>, where the former was additionally subdivided into five groups. The genetic structure of these accessions was closely aligned with their geographic distribution, highlighting the fragmented nature of wild <i>Pyrus</i> populations on the Yunnan–Kweichow Plateau. Analyses of genetic diversity suggested that the central and easter portions of Yunnan Province are key centers of <i>Pyrus</i> diversity on the Yunnan–Kweichow Plateau, whereas the highest degree of differentiation was observed for wild <i>Pyrus</i> in the southwest and northwest regions. Demographic analyses indicated that wild <i>Pyrus</i> populations on the Yunnan–Kweichow Plateau are currently in a state of population contraction, with evidence of migration events between these populations.https://www.mdpi.com/2311-7524/11/1/106<i>Pyrus pashia</i><i>Pyrus calleryana</i>resequencinggenetic diversityYunnan–Kweichow Plateau |
| spellingShingle | Xiang Yang Xingguang Dong Kunming Li Ying Zhang Chenxi Xu Hongliang Huo Luming Tian Jiayu Xu Chao Liu Dan Qi Yufen Cao The Genetic Diversity, Population Structure, and Historical Dynamics of Wild <i>Pyrus</i> Species on the Yunnan–Kweichow Plateau Horticulturae <i>Pyrus pashia</i> <i>Pyrus calleryana</i> resequencing genetic diversity Yunnan–Kweichow Plateau |
| title | The Genetic Diversity, Population Structure, and Historical Dynamics of Wild <i>Pyrus</i> Species on the Yunnan–Kweichow Plateau |
| title_full | The Genetic Diversity, Population Structure, and Historical Dynamics of Wild <i>Pyrus</i> Species on the Yunnan–Kweichow Plateau |
| title_fullStr | The Genetic Diversity, Population Structure, and Historical Dynamics of Wild <i>Pyrus</i> Species on the Yunnan–Kweichow Plateau |
| title_full_unstemmed | The Genetic Diversity, Population Structure, and Historical Dynamics of Wild <i>Pyrus</i> Species on the Yunnan–Kweichow Plateau |
| title_short | The Genetic Diversity, Population Structure, and Historical Dynamics of Wild <i>Pyrus</i> Species on the Yunnan–Kweichow Plateau |
| title_sort | genetic diversity population structure and historical dynamics of wild i pyrus i species on the yunnan kweichow plateau |
| topic | <i>Pyrus pashia</i> <i>Pyrus calleryana</i> resequencing genetic diversity Yunnan–Kweichow Plateau |
| url | https://www.mdpi.com/2311-7524/11/1/106 |
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