The grand game of metazoan phylogeny: rules and strategies

Citation
Ra. Jenner et Fr. Schram, The grand game of metazoan phylogeny: rules and strategies, BIOL REV, 74(2), 1999, pp. 121-142
Citations number
144
Language
INGLESE
art.tipo
Review
Categorie Soggetti
Biology,"Experimental Biology
Journal title
BIOLOGICAL REVIEWS OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY
ISSN journal
1464-7931 → ACNP
Volume
74
Issue
2
Year of publication
1999
Pages
121 - 142
Database
ISI
SICI code
1464-7931(199905)74:2<121:TGGOMP>2.0.ZU;2-K
Abstract
Many cladistic analyses of animal phylogeny have been published by authors arguing that their results are well supported. Comparison of these analyses indicates that there can be as yet no general consensus about the evolutio n of the animal phyla. We show that the various cladistic studies published to date differ significantly in methods of character selection, character coding, scoring and weighting, ground-pattern reconstructions, and taxa sel ection. These methodological differences are seldom made explicit, which hi nders comparison of different studies and makes it impossible to assess a p articular phylogeny outside its own scope. The effects of these methodologi cal differences must be considered before we can hope to reach a morphologi cal reference framework needed for effective comparison and combination wit h the evidence obtained from molecular and developmental genetic studies.