Avise J C, Wollenberg K
Department of Genetics, University of Georgia, Athens, GA 30602, USA.
Proc Natl Acad Sci U S A. 1997 Jul 22;94(15):7748-55. doi: 10.1073/pnas.94.15.7748.
A recent criticism that the biological species concept (BSC) unduly neglects phylogeny is examined under a novel modification of coalescent theory that considers multiple, sex-defined genealogical pathways through sexual organismal pedigrees. A competing phylogenetic species concept (PSC) also is evaluated from this vantage. Two analytical approaches are employed to capture the composite phylogenetic information contained within the braided assemblages of hereditary pathways of a pedigree: (i) consensus phylogenetic trees across allelic transmission routes and (ii) composite phenograms from quantitative values of organismal coancestry. Outcomes from both approaches demonstrate that the supposed sharp distinction between biological and phylogenetic species concepts is illusory. Historical descent and reproductive ties are related aspects of phylogeny and jointly illuminate biotic discontinuity.
近期有一种批评观点认为，生物物种概念（BSC）过度忽视了系统发育，本文在对合并理论进行一种新颖修正的框架下对这一批评进行了审视，该修正考虑了通过有性生物谱系的多种、按性别定义的谱系路径。同时也从这一视角对竞争的系统发育物种概念（PSC）进行了评估。采用了两种分析方法来获取谱系遗传路径的交织组合中所包含的综合系统发育信息：（i）跨等位基因传递路径的一致系统发育树，以及（ii）来自生物亲缘关系定量值的综合表型图。两种方法的结果均表明，生物物种概念和系统发育物种概念之间所谓的明显区别是虚幻的。历史血统和生殖联系是系统发育的相关方面，共同阐明了生物间断性。
