
%0 Journal Article
%A Baverstock, PR 
%A Cramp, N 
%A Johnson, AM 
%A Donnellan, SC 
%T Evolution of the Small Subunit Ribosomal-Rna in Higher Vertebrates
%J Australian Journal of Zoology
%D 1991/08/01
%V 39
%N 4
%P 387-401
%K 
%R https://doi.org/10.1071/ZO9910387
%U https://www.publish.csiro.au/paper/ZO9910387 
%X The potential value of rapid sequencing of the srRNA molecule for phylogenetic reconstruction of the higher vertebrates was investigated. The study involved partial sequencing of 19 taxa that, along with 6 sequences from the literature, covered all of the major groups of higher vertebrates. The results show that sequencing of the srRNA molecule is not suitable at this taxonomic level because: (i) there is insufficient nucleotide sequence variation; (ii) expansion segments, although common, have a high probability of convergence for both their position and their sequence; and (iii) the phylogenetic branching of the higher vertebrates has been mainly 'bush-like' rather than 'tree-like'. 
