# 编者信息 熊荣川 明湖实验室 xiongrongchuan@126.com http://blog.sciencenet.cn/u/Bearjazz POLYTOMIES AND STRICT CONSENSUS TREES: The two cladograms below illustrate a common situation in phylogenetic analysis, when two or more competing fully resolved cladogram hypotheses may be equally well supported by parsimony. The following example is used to explain how such uncertainty is sometimes represented by a strict consensus tree. 多岐分支和严格一致树： 下面的两个支序图说明了系统发育分析中的一个常见情况，即两个或多个相互竞争（有差异）且完全解决的分支图假设可能都得到了最大简约支持。下面的例子用来解释这种不确定性有时是如何由一个严格的共识树表示的。 Consider cladograms A and B above. These cladograms differ in the hypothesized relationship of the turtle to other reptiles (*). Cladogram A is the hypothesis that the turtle is sister taxon to a clade, bird + crocodile (Archosauria). Cladogram A is the more conventional alternative hypothesis that turtle is, instead, sister taxon to all other reptiles (cladistically redefined to include birds in this course!). This latter reptilian subclade is referred to as either Sauria or Diapsida, depending on which name is preferred. 考虑上面的支序图 A 和 B 。这些支序结构的差别点在乌龟与其他爬行动物的聚类关系假设上。 cladogram A 假设，乌龟是鸟 + 鳄鱼（ Archosauria ）支系的一个姊妹群。 cladogram A 是一个更为传统的假设，乌龟是所有其他爬行动物的姊妹分类群（在本课程中，所谓的其它爬行动物包括鸟类） . 后一爬行动物分支根据命名被称为蜥蜴亚目或双孔亚纲。 Introduction to Phylogeny: Hard or Soft Polytomies? http://biology.fullerton.edu/biol404/phylo/polytomies.html
接AHR编辑部信函，2010年在中国大陆“创”刊的亚洲蛇蛙研究（AHR）被SCI收录。 尽管对SCI收录仁者见仁智者见智，但能通过SCI的收录进一步扩大AHR论文的交流传播力，是值得庆幸的。 非常感谢杂志主编及编辑部多年来的辛勤工作和努力！ 注：之所以在创刊的创子冠以双引号，是因为这一刊物前身其实已有10多年的历史。第一期为“中国蛇蛙研究”，在中国大陆刊发。此后，转入美国加州大学伯克利分校，由亚洲蛇蛙研究会和伯克利分校脊椎动物博物馆主办，并更名为“Asiatic Herpetological Research”。 此外，该刊也有译为“亚洲两栖爬行动物研究”。 …… 下面引编辑部文： Informed from an email sent by a staff of Thomson Reuters on July 15 2011, and according to the statements released on July 19 on the Website of Thomson Reuters ( http://science.thomsonreuters.com ) , we are glad to inform you that the journal Asian Herpetological Research (AHR) has been accepted by Thomson Reuters for coverage in Web of Science.The coverage begins in the Science Citation Index (SCI) Expanded with Issue One of Volume One, 2010.AHR has also been accepted for coverage in Current Contents - Agriculture, Biology Environmental Sciences , Zoological Record and BIOSIS Previews .
标签: 爬行动物
