...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>植物研究雑誌 >A Taxonomic Study of Astragalus sikokianus with a Disjunct Distribution between Northwestern China and the Korea-Japan Region
【24h】

A Taxonomic Study of Astragalus sikokianus with a Disjunct Distribution between Northwestern China and the Korea-Japan Region

机译：中国西北地区与朝鲜-日本地区分布不均的黄芪分类学研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Astragalus sikokianus has been known as endemic to the Korea-Japan region but is taxonomically confused with A. koraiensis from Korea and A. bhotanensis from Bhutan and western China. To clarify its taxonomic boundary and distribution, we examined external morphological characters and nrlTS sequence data. Morphologically, A. koraiensis and A. sikokianus are hardly distinguishable from each other but they differ from A. bhotanensis of Bhutan and southwestern China in their leaves, leaflets, peduncles,corollas, calyx, and legumes. In contrast, the diagnostic characters of plants known as A. bhotanensis from northwestern China match those of A. sikokianus. Our TCS network and ML tree based on ITS sequence variations also recognized the plants from northwestern China, Korea, and Japan as being an independent evolutionary lineage that is distinct from the other group of A. bhotanensis from southwestern China. Therefore, this morphological and molecular evidence leads us to conclude that A. koraiensis is synonymized with A. sikokianus and, as delimited here, the latter species also includes plants from northwestern China. It is also possible that this disjunct distribution of newly circumscribed^, sikokianus can be explained by historical geographic changes and long-distance dispersal in East Asia.
机译：黄芪在韩国-日本地区是特有的，但在分类学上与来自韩国的红松曲霉和来自不丹和中国西部的不丹曲霉混为一谈。为了阐明其分类学边界和分布，我们检查了外部形态特征和nrlTS序列数据。从形态上讲，朝鲜红曲霉和东方红曲霉很难区分，但它们的叶片，小叶，花序梗，花冠，花萼和豆科植物与不丹和中国西南地区的不丹曲霉有所不同。相比之下，来自中国西北部的被称为不丹农杆菌的诊断特征与拟南芥的诊断特征相匹配。我们基于ITS序列变异的TCS网络和ML树也将中国西北，韩国和日本的植物视为独立的进化谱系，与中国西南的其他A. bhotanensis不同。因此，这种形态学和分子证据使我们得出结论，认为红松农杆菌是sikokianus的同义词，并且在此界定，后一种还包括中国西北地区的植物。新近界定的sikokianus的这种离散分布也可以用历史地理变化和东亚的远距离扩散来解释。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号