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首页> 外文期刊>Bamboo:the Magazine of the American Bamboo Society >Exploring the Evolution of Cane in North America: A report on recent graduate research sponsored in part by the American Bamboo Society
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Exploring the Evolution of Cane in North America: A report on recent graduate research sponsored in part by the American Bamboo Society

机译:探索北美甘蔗的演变:美国竹子协会部分赞助的近期研究生研究报告

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摘要

Our native North American bamboos are interlocking pieces of a complex botanical puzzle box: How many species are there? What are their closest relatives? How are they distinct? Should Asiatic bamboos like Pleioblastus and Pseudosasa be part of the same genus as our native canes? Recent investigations using the powerful tools of molecular biology and a careful reevaluation of morphology and ecology are casting new light on these mysteries, with some surprising and exciting results. Among the achievements in the past year is the recognition of a new species of bamboo from the southern Appalachian Mountains (hill cane, Arundinaria appalachiand). Another achievement is the discovery of DNA evidence that the North American species appear to be more diverse than previously thought, as hill cane takes its place alongside our other native bamboos: river (or giant) cane (A. giganted) and switch cane (A. tecta). And ongoing molecular-based studies are helping us to understand major events in the evolution of these species and their Asian cousins, including Pleioblastus and Pseudosasa but also Sasa, Sasamorpha, and other more distant relatives among the temperate bamboos.
机译:我们本地的北美竹子是一个复杂的植物拼图盒的互锁件:有多少种?他们的近亲是什么?它们有何不同?像Pleioblastus和Pseudosasa这样的亚洲竹类,是否应该和我们的本地手杖属于同一属?最近使用强大的分子生物学工具进行的研究以及对形态和生态学的仔细重新评估为这些谜团开辟了新的亮光,并产生了令人惊讶和令人兴奋的结果。在过去的一年中取得的成就之一是对南部阿巴拉契亚山脉(山bamboo,Arundinaria appalachiand)的一种新竹种的认可。另一项成就是发现了DNA证据,表明北美物种似乎比以前认为的要多样化,因为山甘蔗取代了我们的其他原生竹子:河(或巨型)甘蔗(巨大的A.)和switch木(A) 。tecta)。正在进行的基于分子的研究正在帮助我们了解这些物种及其亚洲表亲(包括Pleioblastus和Pseudosasa以及Sasa,Sasamorpha以及其他温带竹子中较远的亲戚)进化过程中的重大事件。

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