单词 | synapomorphy |
释义 | > as lemmassynapomorphy synapomorphy n. Brit. /sᵻˈnapəmɔːfi/ , U.S. /səˈnæpəˌmɔrfi/ [ < apomorphy , < apo- prefix + -morphy comb. form] Taxonomy the possession by two organisms of some character (not necessarily the same in each) that is derived from one character in an organism from which they both evolved; also = synapomorph n.ΘΚΠ the world > life > biology > biological processes > evolution > [noun] > morphogenesis > derivation or appearance of characters acquired1794 neomorph1886 paedomorphism1892 neotenia1896 habitat form1902 caenogenesis1909 fetalization1922 paedomorphosis1922 hominization1953 synapomorphy1966 synapomorph1969 1966 D. D. Davis & R. Zangerl tr. W. Hennig Phylogenetic Systematics ii. 90 It makes no difference whether the synapomorphy consists in the fact that an apomorphous character (a′) is present identically in all species..or whether it is present in different derived conditions (a′ and a″). 1979 Nature 18 Jan. 176/1 This inference is drawn from the fact that lungfish and cows share derived characters (synapomorphies such as internal nostrils, an epiglottis, a two-chambered auricle and so on..) not found in salmon. < as lemmas |
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