The performance of morphological characters in broad‐scale phylogenetic analyses
The performance of morphological characters in broad‐scale phylogenetic analyses
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形态特征在大规模系统发育分析中的表现
DOI：
10.1111/j.1095-8312.2007.00847.x
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发表时间：
2007
影响因子：
1.9
通讯作者：
O. Rieppel
中科院分区：
文献类型：
--
作者：
O. Rieppel
鉴于它们的命题内容（即它们可以是对的或错的），特征陈述（即断言生物体特征的陈述）被视为低级假设。本研究的论点是，这种性格陈述，就像更复杂的科学理论一样，具有可变的范围。一个假说或理论的范围是该假说或理论所涵盖的话语领域。一个字符的陈述最初介绍的范围内的某个领域的话语，是由最初的系统发育分析的规模。“完全证据”的原则要求在随后的研究中包括以前介绍的字符。因此，性格陈述的初始范围被扩大到随后分析的规模被扩大的程度。字符语句的范围扩展可能会导致字符不完整，字符细分，或在参考的歧义（解剖术语的扩展的不确定性）。具有广泛范围的特征陈述是可取的，因为它们指的是在系统发育分析中具有解决深层节点潜力的特征。如果一个特征陈述的最初限制的范围被扩大以匹配大规模的系统发育分析，则必须注意保持解剖学术语的参考明确性。© 2007 The Linnean Society of伦敦，Biological Journal of the Linnean Society，2007，92，297-308。
In view of their propositional content (i.e. they can be right or wrong), character statements (i.e. statements that predicate characters of organisms) are treated as low-level hypotheses. The thesis of the present study is that such character statements, as do more complex scientific theories, come with variable scope. The scope of a hypothesis, or theory, is the domain of discourse over which the hypothesis, or theory, ranges. A character statement is initially introduced within the context of a certain domain of discourse that is defined by the scale of the initial phylogenetic analysis. The doctrine of ‘total evidence’ requires the inclusion of previously introduced characters in subsequent studies. As a consequence, the initial scope of character statements is widened to the extent that the scale of subsequent analyses is broadened. Scope expansion for character statements may result in incomplete characters, in the subdivision of characters, or in ambiguity of reference (indeterminacy of the extension of anatomical terms). Character statements with a wide scope are desirable because they refer to characters with the potential to resolve deep nodes in phylogenetic analyses. Care must be taken to preserve referential unambiguity of anatomical terms if the originally restricted scope of a character statement is expanded to match a broad-scale phylogenetic analysis. © 2007 The Linnean Society of London, Biological Journal of the Linnean Society, 2007, 92, 297–308.