Demographic history and identification of threats revealed by population genomic analysis provide insights into conservation for an endangered maple
| Autor: | Richard I. Milne, Ren-Gang Zhang, Hafiz Muhammad Wariss, Weibang Sun, Yongpeng Ma, Lidan Tao, De-Tuan Liu |
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| Rok vydání: | 2021 |
| Předmět: |
Conservation genetics
China Population Endangered species framework on conservation genomics Acer Runs of Homozygosity Biology Effective population size run of homozygosity Genetics Animals Humans education Ecology Evolution Behavior and Systematics resequencing Population Density education.field_of_study Genetic diversity Habitat fragmentation Acer yangbiense Anthropogenic Effects Endangered Species Genetic Variation Genomics demographic history deleterious mutation Evolutionary biology Threatened species Metagenomics |
| Zdroj: | Ma, Y, Liu, D, Wariss, H M, Zhang, R, Tao, L, Milne, R I & Sun, W 2021, ' Demographic history and identification of threats revealed by population genomic analysis provide insights into conservation for an endangered maple ', Molecular Ecology . https://doi.org/10.1111/mec.16289 |
| ISSN: | 1365-294X |
| Popis: | Recent advancements in whole genome sequencing techniques capable of covering nearly all the nucleotide variations of a genome would make it possible to set up a conservation framework for threatened plants at the genomic level. Here we applied a whole genome resequencing approach to obtain genome-wide data from 105 individuals sampled from the 10 currently known extant populations of Acer yangbiense, an endangered species with fragmented habitats and restricted distribution in Yunnan, China. To inform meaningful conservation action, we investigated what factors might have contributed to the formation of its extremely small population sizes and what threats it currently suffers at a genomic level. Our results revealed that A. yangbiense has low genetic diversity and comprises different numbers of genetic groups based on neutral (seven) and selected loci (13), with frequent gene flow between populations. Repeated bottleneck events, particularly the most recent one occurring within ~10,000 years before present, which decreased its effective population size (Ne ) |
| Databáze: | OpenAIRE |
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