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| DOI | 10.1002/ajb2.16275 |
| Genetic consequences of Last Glacial-Holocene changes in snowfall regime in Arnica mallotopus populations: A plant confined to heavy-snow areas of Japan | |
| 发表日期 | 2024 |
| ISSN | 0002-9122 |
| EISSN | 1537-2197 |
| 起始页码 | 111 |
| 结束页码 | 2 |
| 卷号 | 111期号:2 |
| 英文摘要 | PremiseSnow is an important environmental factor affecting plant distribution. Past changes in snowfall regimes may have controlled the demographies of snow-dependent plants. However, our knowledge of changes in the distribution and demographies of such plants is limited because of the lack of fossil records. MethodsPopulation genetic and landscape genetic analyses were used to investigate the response of population dynamics of Arnica mallotopus (Asteraceae)-a plant confined to heavy-snow areas of Japan-to changes in snowfall regimes from the Last Glacial Period to the Holocene. ResultsThe population genetic analysis suggested that the four geographic lineages diverged during the Last Glacial Period. The interaction between reduced snowfall and lower temperatures during this period likely triggered population isolation in separate refugia. Subpopulation differentiation in the northern group was lower than in the southern group. Our ecological niche model predicted that the current distribution was patchy in the southern region; that is, the populations were isolated by topologically flat and climatically unsuitable lowlands. The landscape genetic analysis suggested that areas with little snowfall acted as barriers to the Holocene expansion of species distribution and continued limiting gene flow between local populations. ConclusionsThese findings indicate that postglacial population responses vary among regions and are controlled by environmental and geographic factors. Thus, changes in snowfall regime played a major role in shaping the distribution and genetic structure of the snow-dependent plant. |
| 英文关键词 | Arnica; Asteraceae; climate change; dispersal barriers; landscape genetics; MIG-seq; population genetics; snow-dependency plants |
| 语种 | 英语 |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| WOS记录号 | WOS:001155955900001 |
| 来源期刊 | AMERICAN JOURNAL OF BOTANY
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/298948 |
| 作者单位 | Kyoto University; Kyoto University; Tohoku University; Kyoto University; Niigata University |
| 推荐引用方式 GB/T 7714 | . Genetic consequences of Last Glacial-Holocene changes in snowfall regime in Arnica mallotopus populations: A plant confined to heavy-snow areas of Japan[J],2024,111(2). |
| APA | (2024).Genetic consequences of Last Glacial-Holocene changes in snowfall regime in Arnica mallotopus populations: A plant confined to heavy-snow areas of Japan.AMERICAN JOURNAL OF BOTANY,111(2). |
| MLA | "Genetic consequences of Last Glacial-Holocene changes in snowfall regime in Arnica mallotopus populations: A plant confined to heavy-snow areas of Japan".AMERICAN JOURNAL OF BOTANY 111.2(2024). |
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