Читать книгу An Introduction to Molecular Biotechnology - Группа авторов - Страница 55

Figure 6.1 shows a tree of life reconstructed over nucleotide sequences of 31 genes from 191 species whose genomes were completely sequenced (Ciccarelli et al. 2006). This tree illustrates the lines of development for the different kingdoms. Within prokaryotes, two large domains are recognizable: the Bacteria (or simply bacteria) and the Archaea (or archaebacteria). Important biochemical differences were already summarized in Table 1.1.

Figure 6.1 A phylogenetic tree of life, showing the relationship between species whose genomes had been sequenced as of 2006. The very center represents the last universal ancestor of all life on earth. The different colors represent the three domains of life: pink represents eukaryota (animals, plants, and fungi), blue represents bacteria, and green represents archaea. Note the presence of Homo sapiens (humans) second from the rightmost edge of the pink segment. The light and dark bands along the edge correspond to clades: the rightmost light red band is Metazoa, with dark red Ascomycota to its left, and light blue Firmicutes to its right.

Source: https://commons.wikimedia.org/wiki/File:Tree_of_life_SVG.svg..