# 编者信息 熊荣川 明湖实验室 xiongrongchuan@126.com http://blog.sciencenet.cn/u/Bearjazz Pyramids The pyramids technique is an extension of the hierarchical clustering framework. Whereas traditional hierarchical methods such as Unweighted Pair Group ...
# 编者信息 熊荣川 明湖实验室 xiongrongchuan@126.com http://blog.sciencenet.cn/u/Bearjazz In addition to the strictly aquatic or semiaquatic habitat, four other adaptive zones can be recognized for ranid frogs: arboreal, rocky, fossorial, and torrential. This ...
# 编者信息 熊荣川 明湖实验室 xiongrongchuan@126.com http://blog.sciencenet.cn/u/Bearjazz Fig. 1. Tokogeny versus phylogeny. (a) Processes occurring among sexual species (phylogenetic processes) are hierarchical. That is, an ancestral species gives rise to two ...
Large sample sizes Appropriate sampling can be crucial to phylogenetic studies 5 . Typically, intraspecific studies involve many individuals for comparison, whereas many interspecific phylogenetic studies tend to be based on one representative individual per species. &n ...
# 编者信息 熊荣川 明湖实验室 xiongrongchuan@126.com http://blog.sciencenet.cn/u/Bearjazz Reticulation Evolutionary processes commonly acting at the population level, such as recombination between genes and hybridization between lineages, and HOMOPLASY (Box 1 ...
# 编者信息 熊荣川 明湖实验室 xiongrongchuan@126.com http://blog.sciencenet.cn/u/Bearjazz Multifurcations A fact related to the persistence of ancestral haplotypes in the population is that a single ancestral haplotype will often give rise to multiple descend ...
# 编者信息 熊荣川 明湖实验室 xiongrongchuan@126.com http://blog.sciencenet.cn/u/Bearjazz Extant ancestral nodes In natural populations, most haplotypes in the gene pool exist as sets of multiple, identical copies that originated by DNA replication. ...
# 编者信息 熊荣川 明湖实验室 xiongrongchuan@126.com http://blog.sciencenet.cn/u/Bearjazz Low divergence By necessity, conspecific individuals diverge later than individuals from different species. Consequently, within-species data sets have fewer ch ...
# 编者信息 熊荣川 明湖实验室 xiongrongchuan@126.com http://blog.sciencenet.cn/u/Bearjazz Problems with interspecific methods at the intraspecific level Evolutionary relationships above and below the species level are different in nature. Relationships between ...
# 编者信息 熊荣川 明湖实验室 xiongrongchuan@126.com http://blog.sciencenet.cn/u/Bearjazz Gene genealogies Given a sample of GENES, the relationships among them can be traced back in time to a common ancestral gene. The genealogical pathways interconnecting t ...
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