What cell lineages tell us about the evolution of spiralia remains to be seen.
Cell-lineage trees may contain information about spiralian phylogeny, as proposed by Guralnick and Lindberg (2001). Here we discuss this possibility further and conclude that the cell-division pattern must be known in greater detail and the coding methods refined before a possible phylogenetic signal can be identified.
Nielsen
Claus
C
Zoological Museum, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark. cnielsen@zmuc.ku.dk
Meier
Rudolf
R
D000818:Animals; D005075:Biological Evolution; D019070:Cell Lineage; D007448:Invertebrates / Q000145:classification* / Q000196:embryology / Q000235:genetics*; D010802:Phylogeny